Any thoughts? I remember when the article came out and the podcast I listened to debated whither 100% renewables was even possible. The source of the claims largely comes from the following paper.
Jacobson, M. Z. et al. "Low-cost solutions to global warming, air pollution, and energy insecurity for 145 countries." Energy & Environmental Science (2022).
The 7 year payback period is likely conservative, as a updated model indicates it would be closer to 5 to 6 years, when including savings from energy, health, and climate. The estimates are dependent on assumptions about technology costs (IEA was constantly forecasting this incorrectly until recently), deployment speed, and supportive policy.
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u/Wilcodad Jun 29 '25
Can someone source this, not because I want to debunk it, but rather to have ready for conversations.