Following a cross-country flight, the pilot attempted to land at a grass airstrip. Realizing that he would not be able to stop the airplane before the end of the runway, the pilot attempted a go-around maneuver. Unable to clear static power lines that were near the departure end of the runway, the pilot elected to go under the lines and subsequently impacted trees. The airplane came to rest in the trees, inverted, and in a nose down position. The airplane's wings and fuselage sustained substantial damage during the accident. The pilot reported that there were no mechanical malfunctions or failures with the airplane prior to the accident.