The portfolio, which includes seven combined-cycle gas-fired facilities and one gas-fired peaking unit, is located in the competitive power markets of the northeast region of the US.

Topaz Power, a US-based independent power producer and an affiliate of private equity firm Riverstone, will serve as asset manager for the gas-fired power plants.

The Riverstone/Carlyle Global Energy and Power Funds is a group of energy-focused private equity funds managed by Riverstone Holdings.