http://www.greenhomebuilding.com/articles/containers.htm

According to David Cross of www.sgblocks.com, “a container has 8000 lbs of steel which takes 8000 kwh of energy to melt down and make new beams etc…  Our process of modifying that entire 8000 lbs of steel into a “higher and better use” only takes 400 kwh of electrical energy (or 5%). 

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