The 525MW Seward power plant, which is located in New Florence of Pennsylvania, will be acquired by Robindale Energy Services subsidiary Seward Generation.
As part of the deal, NRG Energy Services will offer operations and maintenance services to the Seward facility on behalf of Robindale Energy.
Situated in Neoga of Illinois, the 352MW Shelby County facility will be acquired by the subsidiary of Rockland Capital.
The facility is a natural gas-fueled and simple-cycle combustion turbine peaking plant with eight General Electric LM6000 aero-derivative combustion units.
NRG Energy CEO David Crane said: "NRG is focused on maintaining a robust presence and balance through conventional generation assets that complement each other in respect to geography, technology and smart fuel diversity.
"By streamlining our fleet, we can create additional value for our shareholders and meet the needs of our customers with reliable, efficient and economic power. This is part of our ongoing and deliberate strategy of portfolio optimization."
NRG Energy COO Mauricio Gutierrez said: "As part of our asset optimization initiative, we’ve identified a few specific facilities that would be better suited in other hands in markets where we can transact at good value while avoiding future capital expenditures."
Subject to regulatory approvals, the deal is expected to complete in the first quarter of 2016.
