[Greenbuilding] Tags

[John Porterfield]

I've an employee who "bought" 25% of household energy use from renewable energy sources (2 vehicles, plane flights, all energy use of modest detached residence) for $8/month (hey ~$100/yr) from a major green tag provider.  I'm happy to hear thoughts from fellow GBs.
1) We figure her green tags "pay down" some additional cost that utility customers in other spots might otherwise experience;  i.e., help avoid (or minimize) a rate increase as that customer's utility company purchases renewable energy.  If the utility operates where renewable energy is nearly cost-equivalent w/ (subsidized) carbon/nuclear energy (say, where wind  conditions are favorable) I suppose green tags yield substantial "leverage" in expanding the supply of RE.  I suspect green tags may create 10 times more RE, $/$, than a roof-top system.
2) An even greater carbon offset might follow from "white tags" since energy efficiency is widely available at a fraction of the cost of producing an equal amount of renewable energy. 

Reference to any systematic study of the most effective ways to leverage carbon reduction and renewable energy will be warmly appreciated!

John Porterfield
Chicago


 
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