MainPower

MainPower New Zealand Limited is an electricity distribution company, based in Rangiora, New Zealand, responsible for electricity distribution to nearly 42,000 customers in the Canterbury region north of the Waimakariri River. MainPower was formed in 1993, after the Energy Companies Act 1992 required the North Canterbury Electric Power Board to reform into a commercial power company. More reforms in 1998 required electricity companies nationally to split their lines and retail businesses, with MainPower retaining its lines business and selling its retail business to Contact Energy.

MainPower has initiated a number of local generation projects, including the Mount Cass Wind Farm (proposed) and Cleardale Hydro Power Station (operating).