Renewable energy includes existing hydroelectricity and other other renewable energy sources. An excellent source of information on renewable energy is provided by the Conservation Council of New Brunswick, here.
Sam Arnold of the Sustainable Energy Group Carleton County and CRED-NB member produced a video about the renewable alternatives to the next generation nukes, which you can view here.
NB Power owns seven hydro electric generating stations, including the largest, Mactaquac, on the Wolastoq (Saint John River). Other companies that own hydro generating stations in New Brunswick are St. George Power, Edmundston Energy and Hargrove Hydro. NB Power has started the process of de-commissioning Milltown, one of its oldest hydro generating stations, on the St. Croix River.
Other renewable energy sources
Currently very little of the energy generated in New Brunswick is from other renewable sources. There are three wind farms: Caribou Wind Park west of Bathurst, Lameque Wind Power project on Lameque Island, and Kent Hills Wind Farm in Riverside-Albert. There are no solar farms supplying commercial electricity.
Visit the Renewables NB page for excellent information on renewable energy sources in New Brunswick, including hydro power, solar, bioenergy, wind and geothermal.