The sixth fuel Energy efficiency has become the largest ‘energysource’. Bigger than oil. And much bigger than wind, solar and hydro power and bio fuels combined. These renewable energy sources would need to increase more than 7-fold to substitute for fossil fuels. Today, this is not technically – let alone economically - possible. Additional energy efficiency is both needed and possible. Energy efficiency obtained through better insulation of buildings is a cheap, almost un-ending ‘sixth fuel’. Source: Cenef Bulletin no. 35, April-June 2002 Back |
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