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50 Renewable Energy Private Equity Firms (2026)

ArcLight Capital Partners

Tier 2: infrastructure & energy specialistsvalue‑add, buyout

Focuses on assets critical to electrification and the digital economy across power, renewable, and strategic gas infrastructure.

Relevant AUM / Platform Scale
~$8B-$22B depending on active portfolio value
Headquarters / Location
North America
Founded
2001
Latest Fund / Vehicle
ArcLight Fund VII

Focus Sectors & Technology

renewableselectrificationstrategic gasdigital economy

Key Investments & Platforms

  • Invenergy AMPCI Thermal Power (50% stake)