The Squirt and the Whale is the nineteenth episode of Season 21, which aired on April 25, 2010. It was written by Matt Warburton and directed by Mark Kirkland. The episode features contains references to the 2005 film The Squid and the Whale and the TV show, South Park.
Fed up with high electric bills, Homer puts up a windmill generator in the backyard. When he sees that the excess energy goes back to the power company, he takes the house off the power grid, making it entirely dependent on the windmill. Then a violent windstorm hits Springfield, and among the victims are the windmill and a whale which ends up beached, prompting Lisa, Homer, and many other townspeople to attempt to save it.