Global renewable power is set to more than double by 2030
Published · 3 min read
The world is racing toward a cleaner power system. Global renewable capacity is on track to grow by about 4,600 gigawatts (GW) by 2030, driven mainly by solar photovoltaic (PV), more than double today’s level by the end of the decade.
Solar PV leads the charge
The IEA expects solar PV to deliver around 80% of the world’s renewable capacity growth between now and 2030. Costs have fallen, projects build fast, and systems scale from rooftops to large solar parks. Wind is still vital, both onshore and offshore, but solar’s speed and scale make it the main engine of growth this decade.
- Speed: Solar farms can go from plan to power in months, not years.
- Scale: From homes to gigawatt plants, PV fits many needs.
- Costs: Manufacturing scale has kept module prices competitive.
Key numbers at a glance
| Indicator | 2025–2030 Outlook | Notes |
| Added renewable capacity | ≈ 4,600 GW | IEA’s latest medium-term view. |
| Share of growth from solar PV | ~80% | Solar remains the primary growth driver. |
| Wind + solar vs. coal (H1 2025) | Wind + solar surpassed coal | Milestone reported by independent analyses. |
| Updated 2030 forecast context | Outlook trimmed vs. earlier views | Policy shifts in key markets affect totals. |
Momentum is real — and visible in the data
It’s not just forecasts. In the first half of 2025, wind and solar together produced more power than coal worldwide, as solar generation jumped by about a third and wind also grew. That surge met rising electricity demand without a larger fossil fuel burn. Analysts read this as a sign that clean power can support demand growth when markets keep building at scale.
But there are challenges
The path to 2030 isn’t perfectly smooth. The IEA’s new update trimmed the 2030 outlook by roughly 900 GW versus earlier expectations, citing policy changes and market design shifts in large regions. Still, the agency says the world remains on a strong growth track, with solar doing most of the heavy lifting.
- Policy stability: Sudden changes in incentives or auctions can slow projects.
- Supply chains: Concentration in a few countries raises risk and debate.
- Grids and permits: Interconnection queues and slow permits delay delivery.
Even with these headwinds, the overall picture holds: renewables are expanding fast, and solar PV remains the anchor of that growth.
Who’s leading the build-out?
Growth is broad but uneven. China continues to add record volumes of solar and wind and remains the largest builder. India is rising as a major market with supportive policy and growing rooftop adoption. Europe shows better pipelines as approvals improve. Trends in the United States depend on policy direction and grid readiness.
- China: Adds more capacity than the rest of the world combined in some periods.
- India: Demand growth plus policy push makes it a top-two growth market.
- Europe: Streamlined approvals strengthen the near-term pipeline.
What will decide success by 2030?
Hitting — and maybe beating — a simple doubling depends on three things. First, grids and flexibility: transmission, storage, and demand response must scale with new solar and wind. Second, stable policy: clear tenders, bankable contracts, and steady tax rules keep finance flowing. Third, healthy industry: manufacturers and EPC firms need sustainable margins to deliver on time and on budget. The IEA highlights each of these enablers in its market notes.
| Enabler | What’s needed now | Payoff |
| Grid build-out | Faster permits; timely transmission lines; storage procurement. | Less curtailment; more reliable clean power. |
| Market design | Transparent auctions; fair contracts; clear interconnection rules. | Lower financing costs; stable project pipelines. |
| Balanced supply chains | Diversify key inputs; manage trade and quality standards. | Resilience against shocks; steady build rates. |
Bottom line
The research tells a clear story. Renewable power is set to more than double by 2030, and solar PV will lead. Some forecasts were eased because of policy and market changes, but the trend remains strong. Wind and solar have already shown they can meet demand growth — and even surpass coal — when deployment keeps up. Keeping momentum will take better grids, clear rules, and healthy supply chains. If countries deliver on those pieces, the world can lock in this shift — and maybe go even further.
