But their anticipated output would not be sufficient to serve data center projects in the construction pipeline

*Guest Blog by Michael Vickerman—RENEW Wisconsin Board Member

Construction of large solar power plants in Wisconsin will accelerate throughout the decade, thanks to a series of regulatory approvals handed down over the past 12 months. Indeed, by all appearances, solar power will dominate utility investment in new sources of electric power for the foreseeable future.

In March 2026 alone, the Public Service Commission of Wisconsin (PSC) approved utility requests to acquire three solar projects—two in Columbia County and one in Rock County—totaling 315 megawatts (MW). When energized over the next two years, these three plants will generate more than 600,000 megawatt-hours of zero-emission electricity annually to customers. That amounts to 0.9% of electricity consumption in the Badger State. 

As shown in Table 1 below, WEC Energy and Madison Gas & Electric will add 1.265 gigawatts, or 1,265 MW, of solar power to their generation fleets over the next three years. Construction is well underway at the Koshkonong and High Noon project sites, and ground will be broken this year on the other solar plants listed in the table.

Construction is also proceeding on a 250 MW solar plant in central Wisconsin owned by Minneapolis-based Geronimo Energy. Anticipated to be placed in service later this year, the Portage Solar plant will produce electricity for the wholesale market and sell the renewable energy credits (RECs) from that generation to Microsoft, which will soon complete construction on a hyperscale data center in Racine County. When activated later this year, Microsoft’s facility will become the largest consumer of electricity in the entire state, with a baseline demand of approximately 500 MW. Microsoft will purchase all of the RECs produced by Portage Solar to offset a portion of that facility’s electricity usage. 

Utility-owned solar generating plants often come paired with battery energy storage systems (BESS) placed within the project boundaries. These installations can store up to four hours of electricity at the battery’s rated capacity. 

At the Koshkonong project, for example, the battery system is designed to accept as much as 660 MWh of electricity generated onsite. These BESS units will enable grid operators to discharge stored electricity directly into the transmission system when demand peaks later in the afternoon and evening. 

In just a handful of years, solar has emerged as the fastest-growing in-state source of electric power, and its contribution to electricity supplies now surpasses wind and hydro combined (see Table 2). Accounting for 6.6% of Wisconsin-generated electricity in 2025, solar generation could reach the 10% threshold by 2030.

Will solar growth be large enough to offset anticipated load growth driven by hyperscale data centers? 

As impressive as solar’s growth was in 2025, it wasn’t large enough to fully offset the increase in electricity consumption that occurred that year. The other generation resource that saw a significant increase in output from 2024 was coal, whose rise came at the expense of fossil methane. Factoring in other hyperscale data centers now under construction, it will be a challenge to offset rising electricity sales with new solar generation.

As applied to retail electricity customers, the term “capacity factor” is a measure of their actual electrical consumption in a year divided by its peak demand multiplied by 8,760, the number of hours in a year. The consensus estimate of a hyperscale data center’s capacity factor falls in the 75% to 80% range. 

Compared with other customer types, hyperscale data centers impose an unprecedented level of demand on the electric grids that serve them, due to the following reasons.

• Massive scale of operations serving millions of users; 
• Expansion of AI use is driving the need for high-density computing power;
• Energy-intensive cooling systems; and
• Always-on operations requiring uninterruptible electrical service.

With the above in mind, let’s estimate the power consumption from Microsoft’s Mt. Pleasant campus that will commence operations later this year. If we assume a peak load of 500 MW and a capacity factor of 75 to 80%, electricity consumption from this particular entity would range from 3.3 to 3.5 million MWh per year, or 5% of the electricity sales recorded in the entire state of Wisconsin last year. 

It would take six solar plants the size of Koshkonong–1,800 MW in total–to offset, on a MWh by MWh basis, the anticipated consumption from just the Mt. Pleasant data center alone. When the two Beaver Dam and the Port Washington data center projects are brought into the picture, the number of Koshkonong-size projects needed to offset all four hyperscalers in the pipeline would exceed 20. 

Given that, it’s fair to conclude that the data center build-out will elevate greenhouse gas emissions from Wisconsin’s electric power industry even with a robust expansion of in-state solar power. Unless something changes on the ground, this worrisome outcome, and all the unpleasant environmental and economic consequences that it will amplify, is quite literally baked into our future.

April has been a rough month for much of Wisconsin. Hail, high winds, tornadoes, and heavy rain have rolled through the state, causing real damage. Here in Madison, the storm on April 14 brought baseball-sized hail, almost three inches across!

Other parts of central and southern Wisconsin got even bigger stones. Cars were dented. Roofs were torn up. Siding was cracked. Power poles came down. And yes, some solar panels broke too.

That’s the reality of weather like this. Extreme storms damage what’s in their path, and almost nothing on the outside of a home gets a free pass when hail comes down at that size. If your panels took a hit, they may need to be repaired or replaced. That’s not great news, but it’s also not the end of the world.

If you were thinking about going solar before the storms rolled through, the storms shouldn’t change the math on that decision. The path forward, whether you’re repairing a system or building one for the first time, looks a lot like dealing with any other part of your home.

How to Get Your System Back Up and Running

When panels get damaged in a storm like this, the fix looks a lot like dealing with hail damage to your roof or siding. The process moves through a few clear steps.

Contact Your Homeowner’s Insurance and Your Installer

Both should know what happened as soon as possible. Your installer works directly with the insurance company on your behalf from there. They document the damage, walk the adjuster through what they’re seeing, and handle the repair, replacement, and reinstall. The homeowner isn’t navigating it alone.

Know Your Coverage Before a Storm Hits

Most standard homeowner’s policies cover rooftop solar under the dwelling section, but it’s worth confirming that hail and wind are listed as covered perils and that your coverage limit reflects what your system is actually worth. Some policies in hail-prone areas carry separate wind and hail deductibles, and ground-mounted systems sometimes need a separate rider, so it helps to know what your specific policy says before you need to use it.

The Rest of the System Is Built To Make This Manageable

Manufacturers test their panels to real standards. Installers know how to work with insurance companies. Each part does its job so that when something does go wrong, the path forward is clear.

Your installer can also help you sort out what’s covered by equipment warranties versus insurance, and show you how to use your monitoring app to confirm the system is performing normally after repairs.

What Hail Does to a Panel

Knowing what kind of damage you’re looking at helps you follow along when your installer comes out for an inspection.

• Visible damage is less common than people expect, but also the most obvious when it happens. Cracks, chips, or spiderwebbed glass that you can spot from the ground. The tempered glass on top of a panel is built to take a hit, which is why this kind of damage usually only shows up in the more extreme storms. Worth noting too: when a panel does break, the glass stays contained inside the panel. Solar panels are sealed between layers of plastic and held together by an aluminum frame, so cracks don’t send glass flying across your yard or your neighbor’s.
• Hidden microcracks are the ones experts worry about more. These are microscopic fractures inside the solar cells that might not affect performance right away, but can spread over time the same way a small chip in a windshield can grow into a longer crack. Left unchecked, microcracks can gradually reduce efficiency and create hot spots inside the panel. That’s why post-storm inspections matter even when a system seems to be running fine. 
• Cell and busbar damage happens beneath the surface when hail’s impact energy transfers through the glass. The busbars are the thin metal strips that carry electricity across the panel. Modern panels use many ultra-thin busbars or wires per cell, often well into double digits, which helps keep current flowing even if part of a cell takes a hit.

A cracked panel will usually still generate electricity at reduced output. If it needs to be replaced, it should be replaced. If it’s still performing within spec, it can keep running. The key is having someone qualified take a look so you know what you’re working with.

A Quick Note on the Testing

Quality solar panels are built to two main standards that work together.

• IEC 61215 is the performance and durability standard set by the International Electrotechnical Commission. It covers how a panel holds up against weather, including the hail impact testing, where technicians fire ice balls at panels using compressed air cannons. The basic test uses one-inch ice balls at high speeds, and many panels are tested even further against ice balls up to three inches across at speeds up to 88 miles per hour. To pass, the panel has to keep producing power within spec after the impact.
• UL 61730 is the safety standard set by Underwriters Laboratories, which covers electrical safety, fire resistance, and structural integrity. Together, they tell you a panel can take the weather and stay safe doing it.

The Bigger Picture

Everything on the outside of your home already takes a beating from Wisconsin weather. Your roof, your siding, your windows, and the AC unit out back. None of that has stopped anyone from owning a home. You carry insurance for a reason, and when something breaks, you call somebody who knows how to fix it. Solar panels are no different than anything else on your house in that respect.

April has been hard on Wisconsin, no question about it. But the things people depend on after a storm have shown up. Insurance is paying out. Installers are out doing the work. Hail and wind can damage panels. That’s true. What matters is having the right people in your corner and the right coverage in place when it happens. A solid installer and the right insurance policy take care of that.

Last Friday, April 24, the Public Service Commission of Wisconsin (PSC) unanimously approved an electricity rate plan for data centers and other “Very Large Customers” (VLC) in We Energies’ service territory. This decision will protect Wisconsinites from shouldering the financial burden of the energy and infrastructure costs associated with data centers.

RENEW Wisconsin submitted comments in support of this decision to protect Wisconsin ratepayers. We also asked the PSC to include considerations such as energy efficiency and renewable energy in their decision-making process. Meaning these corporations with massive financial means should, at the very least, be investing in building and operational efficiency, while also signing contracts with utility-scale solar projects.

We also highlighted the importance of these large corporations sticking to their own sustainability goals and how, through their vast access to capital, they could incorporate emerging or cutting-edge renewable energy resources to mitigate their contributions to climate change.

As our Policy Director, Andrew Kell, said in his comments to the PSC, “Data centers have adequate resources to become key innovators and provide the ‘technology push’ and ‘demand pull’ required for these programs, technologies, and infrastructure to scale up and flourish.”

While we don’t have guarantees that data centers will lead the charge on innovation as it relates to renewables, we do at least have a strong indication that the PSC will continue to protect ratepayers in future proceedings related to data centers.

“The decisions we’re making here today will not be limited to this docket,” said PSC Commissioner Kristy Nieto. “They will shape future proceedings, future investments, and the trajectory of the utility system itself.”

The PSC also determined that the energy demand threshold for a VLC to qualify for this rate structure should be reduced from 500 megawatts (MW) to 100 MW, the level at which new energy generation projects typically require PSC approval. The PSC also made it mandatory for eligible VLCs to subscribe.

VLCs will also need to fund and subscribe to portions of multiple new power generation projects, or entire projects, as they will be the driver of much of the state’s new energy demand.

We are still waiting for the final written order for this decision, but we are glad that PSC’s preliminary decisions align with what many public comments submitted stated, which is that data centers must pay the full costs of the energy and infrastructure they require.

As data center development progresses, RENEW aims to collaborate with data centers and strongly encourage them to drive and fully pay for cutting-edge clean energy resources. If data centers do in fact strive to incorporate into communities, they should help to ensure that we can create a sustainable, zero-carbon future.

Our shared home and all of its inhabitants deserve protection. It’s been said many times before, but it deserves repeating—we only have the one Earth.

For the last 35 years, supporters like you have helped us lead the charge as we fight to create a future powered by renewable energy. In that time, we’ve made a lot of progress and continue to expand our efforts to end our reliance on fossil fuels and combat climate change.

In 2025 our efforts to support renewables resulted in:

• 5.6 million megawatt hours of renewable energy generated
• 9 billion pounds of carbon emissions avoided
• 560,000 homes powered by renewable energy

We also helped 25 nonprofit organizations go solar through our Solar for Good grant program. This year, we’re looking to do even more to bring the benefits of renewable energy to every corner of Wisconsin.

In 2026 we have already:

• Supported two utility-scale solar projects
• Supported one utility-scale wind project
• Highlighted the value of clean energy jobs
• Advocated for data center legislation that protects Wisconsinites
• And Hosted our Annual Summit!

We’ve also seen three new utility-scale renewable projects get approved by the Public Service Commission of Wisconsin! Each of these wins brings us one step closer to our goal of creating a healthy climate and an economy we can afford. And there’s so much more we hope to achieve. It is, after all, still spring. By winter, we hope our list of achievements has gotten much longer. Together, we can make it happen!

On April 21, Alliant Energy announced the unanimous approval of the Bent Tree North Wind project. The 153-megawatt (MW) wind project will include 32 wind turbines and expand on the existing Bent Tree Wind Farm, which has been operating successfully since 2011. Since the project is located in Minnesota but will send power to Wisconsin, it required approval in both states.

Upon completion, the Bent Tree North Wind project is expected to generate enough electricity to power about 50,000 homes each year. This expansion of Alliant’s renewable energy portfolio is a win for Wisconsin residents in terms of both energy affordability and grid reliability.

More renewable energy means less reliance on fossil fuels, which at times experience volatile pricing, and diversifies our energy resources. This helps keep energy prices from rising and gives us more options for keeping the lights on.

And while this project will reduce the carbon footprint of our state’s electricity production, it will also be economically beneficial to the region where it is hosted. It is expected that the local area will see $100 million in local economic benefits over the project’s 30‑year (or so) life. Some of these benefits will come in the form of tax revenue, landowner payments, and wages for the 100-150 construction jobs the project will support.

The turbines used for the project will also support the economies in the Midwest. Alliant Plans to use Nordex N133s, a 4.8 MW turbine, which has several key components constructed at Nordex’s Iowa facility.

The turbines are also designed to produce more energy per tower, resulting in less disturbance to the land hosting the project. Standing at an impressively tall 606 feet, the towers are able to support larger rotors, which in turn increases energy production and efficiency. This means more energy at a lower cost.

We’re glad we were able to show our support for a project that fights climate change, boosts local economies, and helps keep Wisconsin’s utility bills more stable. If you want to learn more about this project and some of the other things Alliant Energy has cooking, check out their efforts here—Alliant’s Wind Generation

On April 3, 2026, Governor Tony Evers signed a bill that allows counties and municipalities to receive shared revenue payments when a utility-owned battery energy storage system (BESS) is located within their borders. These payments are referred to as utility aid and will amount to $1,000 per megawatt of storage capacity. Local governments also receive utility aid payments for utility-scale renewable energy projects and energy-producing projects.

Utility aid payments are intended to help local governments offset lost property tax revenue and actually provide more funding to municipalities and counties than the property taxes would have. Property owned by a utility company is tax-exempt.

Beginning in 2027, the bill requires the distribution of utility aid payments to local governments for any energy storage facility with a capacity of at least one megawatt. In order for a BESS to qualify for utility aid, it must be used to store a power source that has been converted from another stored energy source. As an example, solar or wind.

It is becoming increasingly common that utility-scale solar is paired with a BESS. Energy storage adds reliability and flexibility to our energy infrastructure, in part by capturing excess power produced by solar installations in the middle of the day and making it available when needed.

Under existing law, when an energy project is located in a city or village, the municipality receives two-thirds of the utility aid, and the county receives one-third. If the project is located in a town, that allocation is reversed. The same will be true for how utility aid payments from a BESS are distributed.

This law was passed with the support of Wisconsin utilities as well as energy developers that are active in the state. This change is a win for communities that host the energy projects that keep our lights on.

There is an old story from the Mediterranean about an elderly man planting an olive tree. A passerby asks why he would plant something that takes decades to bear fruit. The man replies: “Because my children will need the olives.”

Transmission lines are much the same.

Across southwest Wisconsin, communities are hearing about the MariBell Transmission Project, a proposed high-voltage transmission line that would connect Marion, Minnesota, to Bell Center, Wisconsin. The project is part of an effort to strengthen the electric grid across the Upper Midwest.

When people first hear about a transmission project, the natural questions are: Why do we need it? And is it safe?

We can answer both.

Transmission Is Planned Generations Ahead

Transmission lines are not built for today’s electricity needs. They are planned decades ahead for our children’s future.

Much of the infrastructure we rely on today was planned decades ago. Engineers studied population growth and future electricity demand long before many of the businesses and technologies we rely on today even existed.

Regional grid operators like MISO (Midcontinent Independent System Operator) are responsible for conducting these long-range studies. From that work comes the Long Range Transmission Plan, which identifies major grid upgrades needed to maintain reliability across the region. The MariBell project is part of that effort.

Once a project appears on a planning map, it often takes 10 to 15 years before construction begins. Environmental studies, landowner discussions, engineering design, and regulatory approvals are all requirements for this long-term investment.

In other words, transmission is built for the future long before it arrives.

The Backbone of a Reliable Economy

Electricity demand across the Midwest is growing again.

Manufacturing is expanding. We’re electrifying our homes and transportation. At the same time, older power plants are retiring, and new energy sources are coming online across the region.

Transmission connects it all, allowing electricity to travel long distances, balancing supply and demand across states, and ensuring reliability during extreme weather or periods of high demand. It also allows new power generation, from solar to nuclear, to connect to the grid and reach the communities that need it.

Addressing the EMF Question

Another common concern raised during transmission discussions is electromagnetic fields, or EMF.

EMFs are produced whenever electricity flows through a wire, not just transmission lines. Household wiring, appliances, power tools, and TVs also create EMFs.

Because this issue has raised questions for decades, it has been studied extensively. Research conducted by the National Institutes of Health, the World Health Organization, and the National Cancer Institute has examined EMF exposure for more than 40 years.

The consistent scientific finding is that EMF from power lines has not been shown to cause adverse health effects from the levels of exposure typically experienced by the public.

Transmission lines are also designed to naturally reduce exposure. The height of structures and the distance they are placed from homes are both meant to take advantage of the fact that EMF levels drop rapidly the farther you move away from a line. In many cases, household appliances can expose people to stronger EMF levels at a very close range.

That doesn’t mean concerns should be dismissed. But decades of research provide strong reassurance that transmission infrastructure operates safely within established guidelines.

Thinking Like the Man With the Olive Tree

The conversation around the MariBell project is in its early stages. Maps show both proposed and optional corridors, and the final route will be determined through regulatory review and public input.

Those conversations matter. Communities deserve transparency, and landowners deserve to be heard.

The grid we rely on today exists because previous generations believed in planning for the future. They built the infrastructure that powers today’s homes, hospitals, farms, and businesses.

They planted the olive trees.

Now it’s our turn.

Transmission projects like MariBell are not just about meeting today’s electricity needs. They are about ensuring that our children inherit an infrastructure strong enough to support their future.

If we want them to enjoy the harvest, we have to start planting now.

Earlier this week, the Public Service Commission of Wisconsin (PSC) approved Akron Solar! This 200 Megawatt (MW) solar project will be located in Adams and Wood Counties and is planned for completion in the latter half of 2029. Projects like this have a wide range of local and statewide benefits. Thanks to everyone who helped make this project happen, especially those who submitted comments to the PSC and told them why Wisconsin needs more solar power!

Even though we’re only three months into 2026, we are excited about the amount of progress we have already made. That said, there’s plenty more for us to accomplish this year. We hope you’re just as excited as we are to keep the momentum up and help us create a future where everyone benefits from the renewable energy revolution!

Akron Solar’s benefits extend well beyond the clean energy it will produce. If you’re not familiar with the project, below are some additional reasons why we support this project:

 

• Economic Growth: According to a report by Strategic Economic Research, Akron Solar will create more than 450 jobs during construction, as well as more than 14 good-paying, long-term positions in Adams and Wood Counties.
• Community Benefits: Once in service, Akron Solar will contribute more than $1,000,000 in utility-aid payments each year. Over $566,000 of this will go to the counties, while the remaining $433,33 will go to the towns of Rome and Saratoga. During its 25-year life, the project will contribute a total of at least $25million in utility-aid payments.
• Emissions Reductions: Akron Solar will reduce energy production emissions by 650 million pounds of CO2 in the first year of operations. In terms of greenhouse gas emissions, this is the equivalent of taking more than 64,000 vehicles off the road for a full year. These emissions reductions will result in health, economic, and environmental benefits. Wisconsin can expect more than $1.4 million in economic benefits associated with public health improvements in Akron Solar’s first year of operations alone.

Public comments are open now through March 9 for Fox Solar, a 100 Megawatt (MW) solar project paired with a 50 MW battery energy storage system. If approved, the solar project will be located in Oconto County and is planned for completion in 2028. Projects like this have a wide range of local and statewide benefits. Show your support for this project and tell the Public Service Commission of Wisconsin (PSC) why you support the approval of a vital solar project in Wisconsin!

You can use some of the listed benefits below to help you craft your message.

Fox Solar isn’t just about the clean energy it will produce. The 100 MW facility in Oconto County has many benefits:

Economic Growth: According to witness testimony provided by David Loomis of Strategic Economic Research, Fox Solar will create 300 temporary jobs during construction, as well as more than 20 good-paying, long-term jobs across Wisconsin due to economic stimulus related to the project.

Community Benefits: Once in service, Fox Solar will contribute more than $500,000 in utility-aid payments each year. $283,333 of this will go to Oconto County, while the remaining $216,667 will go to the Town of Morgan. During its 25-year life, the project will contribute more than $12 million in utility-aid payments.

Emissions Reductions: Fox Solar will reduce energy production emissions by 304 million pounds of CO2 in the first year of operations. In terms of greenhouse gas emissions, this is the equivalent of taking more than 29,993 vehicles off the road for a full year. Additionally, non-GHG emissions reductions will result in health, economic, and environmental benefits. Wisconsin can expect more than $690,000 in economic benefits associated with public health improvements in Fox Solar’s first year of operations alone.

Submit your comments today and tell the PSC you support the approval of Fox Solar. Feel free to use some of the bullet points above to craft your own unique message.

Wisconsin Power and Light (Alliant Energy) plans to expand its Bent Tree Wind Farm with the Bent Tree North Wind Farm project. Though located in Minnesota, the project will provide power for Alliant Energy customers here in Wisconsin. RENEW Wisconsin is advocating for approval of this project both in Minnesota and here in Wisconsin, as Alliant Energy requires approval from both the Minnesota Public Utilities Commission and the Public Service Commission of Wisconsin.

In its first full year of electricity production, Bent Tree North Wind Farm will produce about 550,000 Megawatt-hours (MWh) of electricity. This is enough to power 55,000 Wisconsin households and reduce emissions produced from energy production by more than 865 million pounds of Carbon Dioxide (CO2) each year. This amount of CO2 would be like taking more than 85,500 vehicles off the road.

Along with CO2 emissions, there are a slew of pollutants that this project will keep out of the air we breathe. As a result, Wisconsin can expect over $1.8 million in economic benefits associated with public health improvements in the first year of Bent Tree North Wind’s operations.

Similar to Wisconsin, Minnesota communities that host utility-scale energy projects benefit from these projects. Bent Tree North will add 150 Megawatts (MW) to the already existing Bent Tree Wind Farm, a 201 MW project. In Minnesota, wind projects are subject to a Wind Energy Production Tax. At about $19,000 per turbine, Bent Tree North will add nearly $650,000 in revenue to be split among Steele, Waseca, and Freeborn Counties. Additional financial benefit will go to the landowners who are leasing their land to make this project possible.

The construction of the project is expected to create 100 to 150 full-time jobs until the project is operational. Additionally, construction workers will contribute to local spending for housing, fuel, meals, and supplies, and construction materials such as concrete and gravel are often sourced locally or regionally.

Though we don’t typically extend our advocacy beyond the borders of our state, this is a great opportunity for both Wisconsin and Minnesota, even if we can’t see eye-to-eye on where Paul Bunyan’s Axe really belongs. Rivalries aside, we look forward to seeing this project approved and will provide an update when we know more!

On Thursday, February 5, 2026, RENEW held our 15th annual RENEW Wisconsin Summit, presented by Invenergy and Dimension Energy. More than 600 Attendees from across the country joined us to discuss policy, legislation, and the future of energy, and how we will use clean energy to make Wisconsin more resilient! It’s hard to believe this event has been going on for so long, but it serves as proof that our industry is a resilient one.

This year, we made some small changes to our Summit, and we were happy to hear that most of them went unnoticed. That’s what we had hoped for! What changed, you ask? For the most part, we cut back on things that felt excessive, like the overall amount of food and some similar small parts of the Summit. Though we are all about clean energy, we also understand the importance of reducing waste in everything we do. Besides that, we did what we do every year — we focused on programming that we felt best represented current events so that we could have timely conversations about our industry, however difficult.

We certainly did have some interesting conversations this year, as well as a couple that might have been difficult or uncomfortable for some. That said, we hope you walked away from our programming with a stronger idea of the energy issues facing us in 2026 and some ideas of how we can address them. It’s our hope that the Summit serves as a launching pad for the remainder of the year. If our sessions on data centers, nuclear power, community benefits of utility-scale renewables, financing, or any of the others spurred an idea, we’d love to hear it. Together, we can turn these ideas into action as we continue to build a more resilient Wisconsin by expanding renewable energy.

And finally, we’d like to share some gratitude. The RENEW Wisconsin Summit comes together through the tireless efforts of our staff, board, volunteers, the many speakers who join us, our generous sponsors, and even our many attendees. The collective effort of the renewable energy industry is what makes this event so special, at least we certainly consider it special. It’s our hope that this event means something to all of you as well, because we’re doing it again. We admittedly don’t have many of the details worked out just yet for the 16th RENEW Wisconsin Summit, but we do know that we’ll be back on February 4, 2027. We hope you’ll join us then!

I know I already said “and finally,” but I do have one more thing. Below is a gallery of photos from the event. We know that photos don’t quite do it justice. We promise to have session recordings available within the next couple of weeks. Thanks again to everyone, you all make the yearly effort worth it!

Solar for Good and Solar for Schools are now under one roof at RENEW Wisconsin. The Solar for Good program was created by the Couillard Solar Foundation, and since its inception, we have appreciated Cal and Laurie Couillard’s trust in us to administer the program. This year, things are changing a little bit. As the Couillard Solar Foundation begins to downsize, we are honored that they have decided to further entrust us with Solar for Good as well as the Solar for Schools program.

With these programs now fully housed under RENEW Wisconsin, we intend to merge the two under the Solar for Good name. Though things are shifting behind the scenes, the mission remains the same — making it possible for mission-based nonprofits, schools, and houses of worship to do more good. By making solar power accessible for these vital organizations and institutions, we can reduce energy costs so more dollars can be spent on the missions that serve Wisconsin communities.

Laurie Couillard shared a few words with us on the history of the Couillard Solar Foundation and their decision to downsize.

“The Couillard Solar Foundation began in 2017 with funds from the sale of Componex, Cal’s small manufacturing company in Edgerton. Our family foundation started our mission to reduce the use of fossil fuels by helping nonprofits and schools install solar energy at their facilities across Wisconsin.

Initially, government rebates were unavailable to nonprofits, so our donations made the installations financially within reach. Partnering with RENEW Wisconsin and Midwest Renewable Energy Association, we focused on our programs, Solar for Good and Solar on Schools, and purchased many shipping containers of solar panels for distribution.

Going forward, we hired staff, grew our foundation board, and educated people about the benefits of renewable energy to combat climate change. As a small private foundation, the Couillard Solar Foundation has had limited success in raising additional donations to continue our programs. As the foundation must downsize due to depleted resources, we are delighted that the dedicated staff of our partner, RENEW Wisconsin, is willing to embrace the challenge to continue our effective programs, Solar for Good and Solar on Schools.

Cal and Laurie Couillard will continue to fundraise with RENEW Wisconsin to support these efforts. We are so grateful for the success of these programs and are hopeful that with RENEW Wisconsin at the helm, we’ll continue to add to the three hundred plus completed solar projects throughout nearly every county in Wisconsin.”

As Laurie mentions above, the Solar for Good and Solar for Schools programs have helped to make more than 300 projects possible, through a mix of financial and solar panel grants. RENEW Wisconsin is proud to have been selected by the Couillards to help carry their legacy of generosity and clean energy advocacy forward.

Questions about Solar for Good? Reach out to us at Ben@renewwisconsin.org or info@renewwisconsin.org.

Public comments are open now through February 23 for Muddy Creek Solar, a 322 Megawatt (MW) solar project paired with a 300 MW battery energy storage system. If approved, the solar project will be located in Dunn County and is planned for completion in 2029. Projects like this have a wide range of local and statewide benefits. Show your support for this project and tell the Public Service Commission of Wisconsin (PSC) why you support the approval of a vital solar project in Wisconsin!

You can use some of the listed benefits below to help you craft your message.

(update: public comments for this project have now closed. We will share an update when the PSC announces their decision)

Muddy Creek Solar isn’t just about the clean energy it will produce. The 322 MW facility in Dunn County has many benefits:

• Economic Growth: According to witness testimony provided by David Loomis of Strategic Economic Research, Muddy Creek Solar will create more than 800 temporary jobs during construction, as well as more than 52 good-paying, long-term jobs across Wisconsin due to economic stimulus related to the project.
• Community Benefits: Once in service, Muddy Creek Solar will contribute more than $1,605,000 in utility-aid payments each year. $909,500 of this will go to Dunn County, while the remaining $695,000 will go to the Town of Spring Brook. During its 25-year life, the project will contribute a total of over $40 million in utility-aid payments.
• Emissions Reductions: Muddy Creek Solar will reduce energy production emissions by 954 million pounds of CO2 in the first year of operations. In terms of greenhouse gas emissions, this is the equivalent of taking more than 94,000 vehicles off the road for a full year. Additionally, non-GHG emissions reductions will result in health, economic, and environmental benefits. Wisconsin can expect more than $2 million in economic benefits associated with public health improvements in Muddy Creek Solar’s first year of operations alone.

Submit your comments today and tell the PSC you support the approval of Muddy Creek Solar. Feel free to use some of the bullet points above to craft your own unique message.

Clean Energy Works is RENEW Wisconsin’s initiative to get into the field with our business members and learn directly from those doing the work each day. By shadowing installers, technicians, and staff across the clean energy industry, we gain a deeper understanding of what goes into the work. These experiences directly inform how RENEW supports and advocates for the people and companies driving clean energy forward.

When it comes to clean energy home improvements, the first project is rarely the last. In Westby, Wisconsin, one homeowner’s decision to go solar became the foundation for batteries, a smart panel, a heat pump, and future expansion.

To see what that looks like in practice, I joined Erik Amodt, Project Manager, and Tomas Herrera, Customer Experience Integrator, at a home where solar opened up the door to so much more.

Meet the Crew

Ethos Green Power Cooperative was established in Viroqua in 2013 and has grown into a 24-person electric cooperative serving southwest Wisconsin. Getting their start in solar installations, Ethos has expanded into battery storage, integrated electrical systems, and mini-split heat pumps as customer needs evolved.

Erik’s own path into clean energy started in agriculture. He spent years farming before transitioning into solar, bringing with him a practical mindset shaped by mechanical work and problem-solving.

“I grew up up north in Blair,” Erik said. “I did a lot of mechanical work and electrical work on the farm. I went to engineering school for three years, did a lot of math-type stuff, and then I just learned on the job. It worked out just fine.”

“Farmers are good at figuring it out,” he said. “It’s kind of fun to learn, to understand code better and see how all that stuff works.”

Erik is now a co-owner in the cooperative. He and Tomas work closely with homeowners as projects evolve. They’ve seen how often one installation leads to another.

“Electrification doesn’t happen all at once,” Tomas said. “It’s usually a journey.”

A recent customer, Paul, has a home that reflects that progression.

About the Technology

Paul began with solar and then expanded with a solar canopy. A local contractor built a beautiful timber frame structure, and Ethos installed solar on top. What started as an energy project also became a permanent and aesthetic feature on the property.

He later added a tiltable ground-mounted array to improve solar energy production in the winter and is now considering an additional ground mount behind his second array. Along the way, he added battery storage, a Span smart panel, and most recently, a heat pump.

The system integrates solar production with three batteries totaling 15 kilowatt-hours of storage, which offers him about 15 hours of emergency power. The Span panel provides circuit-level usage monitoring and prioritizes essentials like lights and refrigerators during outages.

Erik walked through the system controller first, explaining how power flows from the meter into the Enphase controller before distributing through the Span panel and three batteries.

“Span really shines when you start to have battery backup,” Erik said. “They can just work so seamlessly together.”

For Paul, storage was not just about cost savings. Living in a rural area, outages are periodic and often unpredictable. They can happen even on days when there is not a cloud in the sky. That uncertainty became a concern in his woodworking shop, where losing power mid-operation can create real physical risk.

“One initial concern of mine also was safety of my woodworking machines,” Paul said. “Not losing power during a critical operation.”

It wasn’t just about protecting equipment. It was about protecting himself as well. An abrupt outage, followed by power returning without warning, could create a dangerous situation while operating machinery.

“So we did switch one circuit on that critical machine over to here, to the Span panel, so that it can continue on if there is an outage,” he said.

With battery backup and the Span smart panel managing loads, the system provides a smooth transition between grid power and stored energy. Storage and backup became a way to protect his home, his physical health, and his workspace from unpredictable interruptions that are commonplace in rural areas.

Even the municipal utility came out to observe the installation, given how new the technology was to the area.

“They were thrilled to be able to come down and see this,” Paul said. “They were snapping pictures.”

Why It Matters

Paul’s home reflects a pattern that is increasingly common across Wisconsin. Solar becomes the entry point. Once installed, homeowners begin to understand their energy usage. From there, many build outward: adding storage, integrating mini-split heat pumps, and planning for electric vehicles.

This progression differs from how the industry often frames electrification. The common advice is to optimize the building envelope and electrify everything first, then add solar. In practice, many homeowners start with solar and expand over time.

Repeat customers are not simply a sales metric. They are a reflection of quality work and long-term trust. When systems perform well and installers remain engaged, homeowners return.

Looking Ahead

Paul is not done. He is increasingly interested in the possibility of using his electric vehicle as a battery for his home. Vehicle-to-home integration is already in use across the country and has been used to power homes during power outages caused by severe weather.

For Ethos Green Power Cooperative, repeat customers will likely become even more important as the market evolves.

“At the end of the day, we’re just trying to build good systems and do right by our customers,” Erik said.

In Westby, what began as a single solar installation has grown into a fully integrated energy system. It also reinforces an important lesson for the industry: build it right the first time, and customers will come back when they are ready for the next step.

If you are part of this work and would be willing to share your story, I would love to join you for a day. Feel free to reach out to me at ben@renewwisconsin.org.

On Wednesday, January 21, 2026, the Public Service Commission of Wisconsin (PSC) approved the Emerald Bluffs Solar Project, a 225 Megawatt (MW) solar project in Juneau County. This project is planned for completion in the latter half of 2027. Projects like this have a wide range of local and statewide benefits. Thanks to the support from the public, we were able to get this project across the finish line!

Emerald Bluffs is another exciting step in the right direction as we work to expand renewable energy across the state. Wisconsin has now reached a point where we have 2089 MW of solar in operation, nearly 4,000 MW approved and in the development phase, and more than 1,000 MW of solar seeking approval from the PSC. Altogether, we’re hopeful that we’ll have nearly 7,500 MW of solar online across Wisconsin in the near future. Together, we can keep this momentum going.

Emerald Bluffs Solar Project’s Benefits Go Beyond Renewable Energy:

Economic Growth: Emerald Bluffs will create nearly 1,000 jobs during construction, as well as more than 20 good-paying, long-term operations and maintenance positions.

Community Benefits: Once in service, Emerald Bluffs will contribute more than $1,125,000 in utility-aid payments each year. Over $637,000 of this will go to Juneau County, while the remaining $487,500 will go to the towns of Lemonweir and Seven Mile Creek. During its 35-year life, the project will contribute a total of $39.375 million in utility-aid payments.

Emissions Reductions: Emerald Bluffs will reduce energy production emissions by 746 million pounds of CO2 in the first year of operations. In terms of greenhouse gas emissions, this is the equivalent of taking more than 73,500 vehicles off the road for a full year. These emissions reductions will result in health, economic, and environmental benefits.

The on-site renewable mandate in AB 840 is a grid reliability trap.

Wisconsin is at the front edge of a new electricity boom. Data centers, especially those powering artificial intelligence, are arriving with power demands greater than those of many towns and cities. This can be an opportunity for economic growth and long-term energy strength. But only if we write the rules correctly.

That’s why one provision in Assembly Bill 840 (AB 840) should be rejected outright:

“Any renewable energy facility that primarily serves the load of a data center shall be located at the site of the data center.”

On the surface, it sounds reasonable. If a data center claims it will use renewable energy, then the renewable energy should be “right there,” on-site. Simple. But energy policy isn’t made in slogans. It’s made in engineering and economics. And this provision is not a renewable energy policy at all.

It’s a natural gas mandate in disguise. Wisconsin should demand clean power at scale,  not performative compliance. Large data centers can draw hundreds of megawatts around the clock. That kind of demand can’t realistically be met with on-site renewables alone. At least in most locations in Wisconsin. Wind and solar require significant acreage, and the best renewable resources aren’t always near data-center sites.

So what happens when lawmakers require renewables to be built in a confined or impractical space? Renewables can’t meet demand. And when renewables can’t be deployed effectively, the market defaults to the only thing left — fossil fuels.

That means AB 840’s on-site rule doesn’t “ensure renewables.” It blocks renewables and guarantees fossil fuel generation, exactly the opposite of what Wisconsin needs for long-term energy security and economic resilience.

Grid reliability comes from flexibility, not forced geography. Here’s the core problem: the electric grid is not designed around one-to-one power matching. Wisconsin’s power system works because it is a network. We build generation where it makes sense, where the renewable resource is strongest, where land is available, where interconnection is possible, and where transmission can support it. Then electricity flows across the system.

This is not a partisan argument. It’s how modern power systems are built. Requiring renewable energy facilities to be located only on-site at data centers ignores the basic physics of the grid and forces the wrong kind of infrastructure in the wrong place.

Even worse, it undermines reliability. Concentrating generation and load at the same node can create congestion and interconnection bottlenecks. Reliability improves when generation is diversified and distributed geographically, wind in one region, solar in another, storage where it helps most, and transmission planned intentionally.

AB 840’s location requirement is the opposite of that. It is central planning, not grid planning.

If Wisconsin wants ratepayer protection, fine, but we can’t sabotage the growth of clean energy. There’s a lot in AB 840 worth serious discussion. Wisconsin absolutely must prevent large private loads from shifting costs onto families, farmers, and small businesses. That’s non-negotiable.

But if lawmakers are serious about protecting Wisconsinites, they should also consider what happens when natural gas becomes the default fuel for powering the new economy. Gas plants lock in decades of fuel dependence. And fuel dependence means price volatility. Families don’t just pay for the plant — they pay for the fuel, forever. That’s not energy security, that’s vulnerability.

Wisconsin should not build its economic future on imported fuel with prices set by national and global markets. We should build it on resources we can produce right here: wind and solar, paired with storage, demand response, transmission planning, and other grid reliability tools.

There’s a better way, and it’s common sense.

If lawmakers want data centers to contribute to Wisconsin’s energy future, the bill should do three things:

• Require meaningful renewable procurement at scale, not token projects
• Allow off-site renewable development connected to the Wisconsin grid
• Require data centers to pay for the upgrades they drive, generation, interconnection, transmission, and firming

That approach accomplishes everything policymakers say they want:

• reliability
• competitiveness
• long-term price stability
• grid modernization
• and no cost shift to ratepayers

And it does it without forcing Wisconsin into a wave of fossil buildout. Wisconsin gets one shot at this data center expansion will reshape our grid for the next generation. The decisions we make now will determine whether Wisconsin becomes:

• a national model for modern, resilient power growth, or
• a cautionary tale of rushing headfirst into natural gas dependence

AB 840’s on-site renewable mandate is not a guardrail. It’s a trap. If we want energy security and grid reliability, renewable energy provisions must be strong—and they must be real. That means allowing off-site renewables and requiring data centers to add new clean power to the grid at scale.

Wisconsin can welcome economic growth. But we should not do it by writing fossil dependence into law.

Last week, Wisconsin legislators introduced Assembly Bill 840 in response to the development of data centers across our state. We certainly agree that the development of such large, energy-dependent facilities should be done thoughtfully and with minimal impact on our communities. We are, however, concerned that this bill also seeks to hinder the development of renewable energy.

At a time when energy prices are already rising, we cannot reduce our options to address what will likely be a staggering increase in energy demand. This specific piece of the bill will make it that much more difficult to keep prices low for consumers while increasing our dependence on imported energy with volatile pricing.

Not only will this harm our ability to keep the cost of energy in check, it will also set us off course when it comes to meeting our clean energy goals. The restriction on renewable energy in this bill will basically guarantee that data centers will be powered by natural gas. We cannot go down a path that both increases costs for Wisconsinites and accelerates climate change.

RENEW Wisconsin urges legislators to reconsider this aspect of the bill to ensure that all the tools to meet our energy needs remain available as we navigate the evolving landscape of data center development.

Over the past year, RENEW has expanded its capacity to identify and respond to local barriers to distributed renewable energy (rooftop solar as an example), with a particular focus on identifying and addressing county and town drafting of restrictive local ordinances. RENEW has developed a framework for tracking county and town activity and coordinating with installers and developers on submitting comments to local board meetings. RENEW continues to communicate with county and town boards, when necessary, to advise on policy and legal implications of overly restrictive local regulations on distributed energy resources.

As part of implementing this strategy, RENEW communicated directly with Jefferson County regarding their 2025 Solar Energy Systems Ordinance Draft, providing a detailed legal analysis of how key provisions conflicted with state law and Court of Appeals precedent. RENEW’s analysis resulted in the redrafting of the proposed ordinance. When the ordinance was presented to the County Board of Supervisors, RENEW called for comments from RENEW members and impacted installers and developers. The strategy resulted in the Jefferson County Board returning the proposed ordinance to the zoning committee for further review, to reduce restrictions on solar energy systems.

The experience has helped RENEW identify potential litigation and policy strategies to empower our advocacy for balanced local rules that do not unduly restrict renewable energy production. RENEW is communicating and coordinating with other stakeholders to lay the groundwork for future model ordinance work and to support potential litigation that can clarify local authority on regulating renewable energy siting and production.

In parallel, RENEW has supported homeowners facing Home Owner Association (HOA) barriers to rooftop solar. RENEW worked with two homeowners and prepared a legal advisory letter to the Theofila Estates HOA explaining the limited authority of HOAs under state law, demonstrating how the HOA’s rejection of south-facing solar installations based on aesthetic rules would significantly increase costs, reduce system efficiency, and disqualify projects from Wisconsin’s Focus on Energy rebate, and therefore constitute an unlawful restriction on solar.

Together, this local and HOA focused work is helping RENEW build a practical toolkit that RENEW can deploy statewide to defend solar rights and promote uniform, lawful treatment of distributed renewable energy.

Public comments are open now through December 12 for Akron Solar, a 200 Megawatt (MW) solar project. If approved, the solar project will be located in Adams and Wood Counties and is planned for completion in the latter half of 2029. Projects like this have a wide range of local and statewide benefits. Show your support for this project and tell the Public Service Commission of Wisconsin (PSC) why you support the approval of a vital solar project in Wisconsin!

You can use some of the listed benefits below to help you craft your message.

Akron Solar isn’t just about the clean energy it will produce. The 200 MW facility in Adams and Wood Counties has many benefits:

• Economic Growth: According to a report by Strategic Economic Research, Akron Solar will create more than 450 jobs during construction, as well as more than 14 good-paying, long-term positions in Adams and Wood Counties. 
• Community Benefits: Once in service, Akron Solar will contribute more than $1,000,000 in utility-aid payments each year. Over $566,000 of this will go to the counties, while the remaining $433,33 will go to the towns of Rome and Saratoga. During its 25-year life, the project will contribute a total of at least $25million in utility-aid payments. 
• Emissions Reductions: Akron Solar will reduce energy production emissions by 650 million pounds of CO2 in the first year of operations. In terms of greenhouse gas emissions, this is the equivalent of taking more than 64,000 vehicles off the road for a full year. These emissions reductions will result in health, economic, and environmental benefits. Wisconsin can expect more than $1.4 million in economic benefits associated with public health improvements in Akron Solar’s first year of operations alone.

Submit your comments today and tell the PSC you support the approval of Akron Solar. Feel free to use some of the bullet points above to craft your own unique message.

On Thursday, December 4, 2025, the Public Service Commission of Wisconsin (PSC) approved Porchlight Solar, a 163.8 Megawatt (MW) solar project paired with a 50 MW battery in Portage County. In their verbal decision, PSC commissioners noted that the team behind the project made a good effort to work with community members on this project. The commission also noted the many positive comments that came through in support of this project, including RENEW’s. If you submitted a comment in support of this project, thank you for helping us get this project across the finish line!

Porchlight Solar is another exciting step forward as we work to meet our clean energy goals. Wisconsin has now reached a point where we have 2089 MW of solar in operation, 3738 MW approved and in the development phase, and more than 1,600 MW of solar seeking approval from the PSC. Altogether, we’re hopeful that we’ll have nearly 7,500 MW of solar online across Wisconsin in the near future. Together, we can keep this momentum going.

Porchlight Solar’s Benefits Go Beyond Clean Energy:

Economic Growth: Porchlight Solar will create between 200 to 300 jobs during construction, as well as good-paying, long-term operations and maintenance positions.

Community Benefits: Once in service, Porchlight Solar will contribute more than $800,000 in utility-aid payments each year. Over $460,000 of this will go to Portage County, $273,000 will go to the town of Buena Vista, and just over $80,000 will go to the town of Pine Grove. During its 30-year life, the project will contribute a total of $24.4 million in utility-aid payments. In other municipalities, funds like these have gone toward roads, municipal buildings, and first responder resources.

Landowner Engagement: Porchlight Solar has signed land leases with farmers who produce potatoes, corn, and soybeans, according to the application from the developer. When farmers and landowners sign 25-plus-year leases to host solar projects like Porchlight, they are able to rely on long-term, stable revenue.

Emissions Reductions: Porchlight Solar will reduce energy production emissions by 530 million pounds of CO2 in the first year of operations. In terms of greenhouse gas emissions, this is the equivalent of taking more than 53,000 vehicles off the road for a full year. These emissions reductions will result in health, economic, and environmental benefits.