Three short documentaries from The National look at Canadian companies thriving despite the current economic downturn. Their secret: embracing todays green economy. Meet Mississauga-based Electrovaya that's creating 100% recyclable power packs for electric cars. Take a look at an innovation from a former Cape Breton pipe-fi tter that could drastically cut home heating bills. And lastly, track the success of a McGill University team building an electric (and silent) snowmobile.