Canadian General Electric, a major industrial employer in Peterborough, donated a 100-acre parcel of land along the Otonabee River; other lands were subsequently acquired on both sides of the river to serve as the site of the university's permanent campus. The CGE donation included a functioning hydroelectric power plant dating from the 1890s, which still generates a substantial portion of the university's electricity and produces income for the university. The power plant underwent a $22.8-million upgrade in 2013; Trent University owns 50% of the power plant with Peterborough Utilities Group owning the remaining 50%.