Tag: sewtha

British Energy Demand, and Professor MacKay’s estimate of it: an explanation of the differences

Posted by – 2010/06/29

In “Sustainable Energy Without the Hot Air”, Professor MacKay compares an energy demand of 195 kWh/d with his calculated British renewable resource of 180 kWh/d, and comes to the conclusion that Britain cannot power itself from renewables. But in reality, British energy demand is 155 Mtoe/y. That’s the confirmed 2008 number, from the official Digest of UK Energy Statistics. (pdf, see Table 1.1, Final Consumption minus Non-energy use). That’s less than half the demand figure used in the book, when looking at whether his calculated renewable resource is enough. When we compare the renewable resource with the current demand figure, we see that the resource is more than double current energy demand: and that’s before any energy efficiency measures. And that makes a huge difference: by using the real figure for demand, we see that the UK renewable resource is much higher than current energy demand, so Britain could comfortably power itself from its own renewables.

Here at EnergyNumbers, we emphatically and enthusiastically support Professor MacKay’s aspiration for an informed public discussion about energy: and in that co-operative spirit, let’s take a look at the facts and the numbers.
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