From our friends over in Vermont:
"The part about wind power is in the beginning. There's no more about it after the big storm. It was funny and really made wind power look dumb. Worth watching.
Homer decides to go off grid with a wind turbine and discovers that the wind doesn't always blow. Bart climbs the tower to spin the blades so little sister Lisa can watch TV. And then Homer and his neighbor decide to hook up a bunch of home cooling fans to blow air -- problem solved until a thunder storm comes through and destroys the turbine.
When they start mocking you on the Simpsons, you are in trouble."
This is Hulu and there's no way around the pre-roll video commercial in the beginning.