NB Power Generation supplies wholesale energy products in a competitive environment. It wholly-owns two subsidiaries: NB Power Coleson Cove Corporation, which owns and operates the Coleson Cove Generating Station, and NB Coal Limited, which mines coal to supply the Grand Lake Generating Station.

Electricity is generated at 15 hydro, coal, oil, and diesel powered stations, with an installed net capacity of 3,324 MW comprised of 1,903 MW thermal, 895 MW hydro, and 526 MW of combustion turbine capacity. With limited natural resources to generate electricity in the province, NB Power Generation has developed one of the most diverse generating systems in North America. Units have performed well against availability and reliability targets, which are essential to meeting operational and financial objectives. The 458 MW base load unit at Belledune was recently recognized by an industry benchmarking group as the one of the most economic coal-fired generators in North America.

Capitalizing on geographic location and regional weather diversity, the generating system was designed to meet winter peaks and benefit from non-winter sales to neighbouring jurisdictions.