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If I'm not incorrect, the amount of solar we've been installing, most of this 3 TW, has been recent. Is that correct? Can you give me the installed amount over the last 68 years? Break that down for me.
You're right: two-thirds of all solar ever built went up in the last four years — the first 68 years (1954–2022) produced just 1 TW, and the next two TWs arrived by early 2026.
Why it matters: The pace is so extreme that most infrastructure assumptions — grid planning, supply chains, land use — were written before the bulk of today's solar existed.
- 1954–2000 (46 years): essentially zero to ~4 GW total — the era of satellites and pocket calculators, with near-negligible grid presence.
- 2000–2010 (10 years): ~4 GW → ~40 GW; production grew roughly 10x, still less than 2% of today's fleet.
- 2010–2015 (5 years): ~40 GW → ~230 GW; Germany's feed-in tariffs and China's early manufacturing scale drove the first real surge.
- 2015–2022 (7 years): ~230 GW → 1,000 GW (the 1 TW mark, March 2022); costs collapsed and utility-scale projects went mainstream globally.
- 2022–2024 (2 years): 1,000 GW → 2,000 GW; China alone added ~360 GW in 2024, the same year the 2 TW milestone arrived in November.
- 2024–early 2026 (~15 months): 2,000 GW → 3,000 GW; the world added 664 GW in 2025 alone — the fastest single-year build in history.
Room for disagreement
- Exact cumulative figures for years before 2010 vary by source — IRENA, IEA, and BloombergNEF use slightly different accounting methods (installed vs. operational capacity, how they handle decommissioned panels), so pre-2010 numbers carry more uncertainty than recent milestones.
AI-generated with web search — may be wrong. Check the linked sources.
