Corporate funding, public market financing, and debt investments in the global solar sector experienced 131% year-over-year growth to open the first quarter of 2026, said Mercom Capital Group.
The $11.1 billion raised across 53 deals represents a substantial volume growth from the $4.8 billion secured across 39 deals in the first quarter of 2025.
Global venture capital funding for the solar sector reached $1.1 billion across 17 deals in Q1 2026, down 21% compared to the $1.4 billion raised over 14 deals in the year-ago period. However, VC funding increased 74% quarter-over-quarter compared to the $606 million raised across 20 deals in Q4 2025.
Solar downstream companies accounted for $543 million across 10 deals this quarter, down from $1.3 billion in 12 deals in Q1 2025. The largest VC deals over the period were $343 million raised by Inox Clean Energy, $165 million raised by Clean Max Enviro Energy Solutions, and $150 million raised by Amarenco. Grew Solar and Radiance Renewables also secured significant rounds of $118 million and $100 million, respectively.
Public market financing in the solar sector totaled $1.1 billion in eight deals in Q1 2026, marking an increase from the $20 million raised in two deals in Q1 2025. Quarter-over-quarter, public market investments rose 24% from the $900 million raised in eight deals during Q4 2025.
Announced solar debt financing totaled $8.9 billion across 28 deals in the first quarter of 2026, a 154% increase compared to the $3.5 billion raised over 23 deals in Q1 2025. Debt financing also rose 162% sequentially compared to the $3.4 billion secured in 20 deals during the final quarter of 2025.
Corporate mergers and acquisitions activity expanded year-over-year, with 28 solar M&A transactions in Q1 2026 compared to 19 deals in Q1 2025 and 21 transactions in Q4 2025.
Large-scale solar project acquisition activity also trended upward, tracking 75 transactions in Q1 2026 compared to 63 transactions in the year-ago period. In terms of capacity, a total of 18.4 GW of solar projects changed hands in Q1 2026, up from 13.6 GW in Q1 2025. Project developers and independent power producers were the most active buyers, acquiring nearly 11.9 GW, while investment firms and infrastructure funds secured 3.8 GW. Other buyers, including industrial conglomerates and energy companies, took 1.8 GW. On the utility and manufacturing side, a utility company acquired an 830 MW project, an oil and gas firm took a 40 MW project, and a manufacturing company acquired a 20 MW project.
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