RESEARCH
Solar Sets All-Time Annual Record in 2025: 511–647 GW Across All Major Trackers
Global solar PV additions in 2025 broke all previous records, with IRENA reporting 511 GW of AC capacity and Ember tracking 647 GW on a DC basis — the spread reflecting measurement methodology rather than disagreement on the trend. Solar accounted for roughly 74–75% of all new renewable capacity added worldwide, pushing cumulative solar installations past 2,300 GW. All five independent sources confirm 2025 as the highest single-year solar deployment ever recorded.
Findings
- All five major trackers — IRENA, IEA, Ember, PV Tech, and PV Magazine — confirm 2025 as a new record year for global solar PV additions, with no dissenting data point.
- The wide range in reported figures (511 GW IRENA vs 647 GW Ember) reflects AC vs DC measurement conventions, not factual disagreement; both confirm the record and agree solar led all energy sources.
- Solar represented ~74–75% of total renewable capacity additions in 2025 across all methodologies, with China alone accounting for 58–67% of global solar growth depending on the tracker.
- Cumulative global solar capacity crossed 2,300 GW (IRENA AC) to 2,800 GW (IEA) in 2025, making solar the single largest installed electricity technology by capacity worldwide for the first time.
Delta Engine result
↔ Divergence Detected — Δ 0.2171 (threshold 0.05)
- IRENA T5 97
- IEA T5 93
- Ember T4 88
- PV Tech T0 80
- PV Magazine T0 78
Evidence quality
avg 65 · min 25 · max 95 · spread 70