SAVE 50% East Grand Forks Water & Light Department |ON RESIDENTIAL WEATHERIZATION This program provides 50% of the project cost up to a maximum rebate of $500 on window/door replacement or insulation costs. life Connected Since 1909 SAVE 50% East Grand Forks Water & Light Department |ON RESIDENTIAL WEATHERIZATION This program provides 50% of the project cost up to a maximum rebate of $500 on window/door replacement or insulation costs. life Connected Since 1909