Day je predstavio godišnji video-serijal o natjecanju Solarni desetoboj, koji pravi američka vlada, u okviru kog univerzitetski studenti iz 20 zemalja grade energetski efikasne kuće s naglaskom na solarnoj energiji.
Day presented the annual Solar Decathlon competition video series produced by the US government, in which university students from 20 countries build energy efficient houses with an emphasis on solar power.