Energy Efficiency Doesn’t Work
By Cameron Murray, a professional economist with a background in property development, environmental economics research and economic regulation. Cross posted from MacroBusiness
The word efficiency carries a meaning immersed in all things positive – you never hear that being more efficient could possibly be detrimental. In fact, if you can bear the evangelical fervour, you may have read about achieving ‘Factor Four’ or ‘Factor Five’ gains in energy efficiency, as part of a ‘Natural Capital’ revolution comprising a ‘decoupling’ economic growth from a growth in the consumption of exhaustible resources – also known as ‘sustainability’. You may even have heard about the equation I=PAT or I = P x A x T, where environmental impact (I) is a function of population (P), affluence (A) and technology (T), and that becoming more efficient will enable a desired level of affluence with far less environmental cost.
Historical experience shows that these claims are untrue.
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