Thursday, December 3, 2009

Energy Consumption - Porter-Hirsche's from 2001 to 2009

I recently worked through our records to determine how we have changed our household energy consumption over the past decade. I used the methods described by David MacKay in "Sustainable Energy without the Hot Air" to convert GJ of natural gas, litres of gasoline and cords of firewood to kilowatt hours. This is the only way to compare the relative cost of driving, heating the house, lights and conveniences. I also used MacKay's method to normalize energy to kWh/person/day.

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