Global Solar Installations Surge 64% to Record 380 GW in First Half of 2025
Worldwide, 380 GW of new solar capacity was installed in the first half of 2025, a 64% increase over the same period in 2024, with China contributing 67% of the total by adding 256 GW—more than double the rest of the world combined.[1] The United States installed 21 GW, up 4% year-over-year, but faces policy headwinds, while India ranked second with 24 GW; solar is now the fastest-growing source of new electricity generation globally.[1]
U.S. Renewable Energy Investment Falls Sharply Amid Policy Uncertainty
Global investment in renewable energy hit a record in 2025, but U.S. investment dropped by $20.5 billion (36%) from late 2024, the steepest decline among major economies, largely due to policy shifts following the presidential election and removal of federal incentives.[5] Tariffs on steel and aluminum have increased costs for solar and battery storage projects by as much as 30%, leading to more project cancellations than new investment announcements for the second quarter.[5]
AI and Cleantech Manufacturing Drive Surging Power Demand, Intensifying Clean Energy Race
Rapid growth in data centers for artificial intelligence and cleantech manufacturing is projected to add over 57 GW of new electricity demand by 2030, outpacing current clean energy supply.[2] Renewables enjoy advantages such as low cost and modularity, but the industry must accelerate deployment and innovation to meet this demand.[2]
U.S. Renewable Project Development Slows as Subsidies Are Curtailed
Subsidies for renewable energy in the U.S. are being rapidly reduced, causing uncertainty and complicating the financing and contracting of new wind and solar projects, according to industry leaders.[3] Developers are navigating increased risks from tariffs and supply chain costs, resulting in fewer new power purchase agreements being signed in recent months.[3]
UNECE Prepares for Sustainable Energy Week Focused on Resilient Energy Systems
The UN Economic Commission for Europe (UNECE) announced its Sustainable Energy Week for late September, with a focus on just transition and building resilient energy systems through policy dialogues, technological innovation, and cross-sectoral cooperation.