Alternative energy is expanding at an exponential pace.
Unresolvable The public record could not settle it.
Factual: Statements about the present or the past, checked against the record: did they hold up?
The second judge would not resolve this claim; the verdict shown is the first judge's.
What would count as true or false
This is a factual claim as of March 2025 that alternative (renewable, mainly solar and wind) energy is expanding exponentially, meaning sustained growth at a roughly steady or rising percentage rate in installed capacity or generation over the preceding decade or more. True: global data show that solar and wind capacity or generation (and alternative energy taken together) grew at roughly steady or rising annual percentage rates through 2024. Mostly true: solar shows clear exponential growth and overall alternative energy is close to exponential, though some sources such as wind or hydro grew more slowly. Mixed: one major source (for example solar) is exponential, but alternative energy taken as a whole grew roughly linearly. Mostly false: there is growth, but percentage growth rates have clearly declined and the expansion is closer to linear. False: alternative energy capacity or generation was flat or falling.
Set before the research began.
Evidence (4)
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E1 Global Electricity Review 2025 | Ember Ember · 13 April 2026
“Solar power has doubled in the three years since 2021, continuing its pattern of exponential growth.”
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E2 Global Energy Review 2025 International Energy Agency (IEA) · 10 August 2025
“Global generation from solar PV has been doubling approximately every three years since 2016, and it did so again between 2021 and 2024.”
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E3 Global Energy Review 2025 International Energy Agency (IEA) · 10 August 2025
“However, the annual growth rate of 8% was the lowest in the last two decades due to a high base, as well as permitting and licensing challenges in several regions.”
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E4 Empirical growth models for the renewable energy sector Advances in Geosciences (Copernicus Publications), by Kristoffer Rypdal · 25 July 2018
“In contrast, solar and wind have been growing exponentially with a doubling time of 2 years for solar and three years for wind”
Reasoning
The evidence shows solar growing exponentially through 2024 [E1][E2], and solar and wind growing exponentially in a 2018 analysis [E4]. It gives no figures through 2024 for wind or for alternative energy as a whole, and the 8% rate in [E3] is not tied to any source, so the criteria cannot separate true, mostly true and mixed.
Cite this claim
Ray Kurzweil, “Alternative energy is expanding at an exponential pace.” (said March 2025). Verdict: unresolvable. Reliability API, claim c_b23e1a6ec638, method 0.1.0+28da144b, dataset release v1.1.2. https://epistacklabs.com/claims/c_b23e1a6ec638
This claim is in dataset release v1.1.2, with the same verdict.
Reply to this claim
More factual claims by Ray Kurzweil
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Mostly false
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Mostly true
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Mixed
“Yet the “immune system” that has evolved in response to this challenge has been largely effective.”
The 'immune system' that evolved in response to computer viruses has been largely effective.
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“That was not true a year ago. But that’s true today.”
Verdicts are made automatically; how verdicts are made.