This is rather a cute video.
It's also an ad for Ecotricity, the green energy supplier. I was a customer, but left them for LOCO2 - another green provider (depending on the tariff). I was happy with both, but LOCO2 are a lot cheaper. Either way, I'm comfortable enough to choose a more expensive tariff if it means less fossil fuel use: hopefully before long green energy will be as cheap as the bad stuff.