The BLP owns and operates two electric production facilities in Grand Haven. The J.B. Sims Generating Station Unit III is located on Harbor Island, in the middle of the Grand River, just west of the U.S. 31 lift bridge. Constructed in the early 1980s, Sims Unit III began commercial operation in 1983. The Sims Unit III is a 65 MW coal-fired power plant. It is equipped with an electrostatic precipitator and a wet flue gas desulfurizer (FGD) system for emission controls. Fuel is delivered to the plant by lake vessel during the annual Great Lakes shipping season. The utility typically receives12 shipments of coal each shipping season, and the Sims Unit III consumes approximately 550 tons of coal per day.

The BLP Diesel Plant is located at 520 Harbor Drive in Grand Haven, across from the U.S. Coast Guard facility. When originally constructed in 1930, this vintage facility was about one third its current size and housed two DeLaVergne 6-cylinder engines. Expansions in 1934, 1937, 1941, 1947 and 1950 resulted in this facility becoming the largest municipal diesel plant in the nation at that time. The Diesel Plant currently houses seven giant diesel engines on its main floor, five of which are still operational and are used as standby generators. The diesel engines are operated periodically for maintenance and testing purposes, and generate power during hot summer days when the demand for electricity is high.