For the last 5 lawn mows this spring I have averaged about 2.5 kWh per mow for my one acre lot. In my area this is $0.25 per mow. I see the neighbors buying $4 a gallon gas or $5 a gallon diesel and glad I have been saving money using a ET since 1979. The ET was the original "green" machine for home use. Thanks, Paul Holzschuher C-185 Cincinnati