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Flatiron Energy

flatiron.energy ↗

Develops, builds, owns, and operates standalone utility-scale energy storage

Solar & Storage✓ B Corp
Funding
Project/credit financing: ~$540M for Taft BESS (MA) + $250M HPS credit facility; Hull Street Energy portfolio company
Stage
Early
HQ
Denver
Founded
2021

The Current Angle

Pure-play standalone storage; helps integrate renewables and replace fossil peaker plants

Leadership

HQ location

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Last updated September 2026Sources: [1][2][3][4]