How primary energy is measured has changed across our charts
7 August 2026 at 00:00
The Energy Institute no longer uses the substitution method to estimate primary energy. Hereβs why that matters for our charts on energy.<br><br><a href="https://ourworldindata.org/primary-energy-measurement-change"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/9a8b8dbc-314b-4366-f601-386556664700/w=1024"/></a>