The total global corporate solar funding dropped by 16% year-over-year (YoY) with $22.2 billion raised in 175 deals, compared to $26.3 billion in 157 deals in 2024, according to Mercom Capital Group’s newly released 2025 Annual and Q4 Solar Funding and M&A Report. Global venture capital and private equity funding in the solar sector totaled $3.5 billion across 75 deals in 2025, 22% lower than the $4.5 billion raised in 60 deals in the previous year.