NRG Energy Inc. (NYSE: NRG) will offer $700 million, in aggregate principal amount, of senior notes, the company said Jan. 10. The notes will be due in 2022, the company added.

They are senior unsecured obligations of NRG, the company said.

Proceeds from the offer might partly fund the completion of the Edison Mission Energy acquisition, NRG said. If Edison is not acquired, the proceeds will go toward debts, fees and expenses, the company added.

But the offer is not contingent on the deal’s closing, the company said.

NRG is dually based in Princeton, N.J. and Houston. It has assets in oil and gas nationwide, and owns and operates a major power generation portfolio.