In a recent In The Village POST I made about Southeast False Creek's Neighbourhood Energy Utility I encouraged you to go down to it and call the number listed on the sign in front of it in order to get a semi-self-guided walking tour of the building. I still think you should do that. HOWEVER, I also think you should visit this website - GreenBuildingAudioTours.com - and click your way through tours of 13 of the greenest buildings in Vancouver.
You'll be guided through them by architects, designers, project managers and other interesting folks who all personally have a hand in the buildings in some form or another. And yes, it's FREE.