dave woolcock's Profile

143The average internal temperature in British houses in 1970 was 13 °C! Source:

Dept. of Trade and Industry (2002a, para 3.11)

In Japan, thanks to strong legislation favouring effi-

ciency improvements, heat pumps are now available with a coefficient of

performance of 4.9.

completely forested the country

Moreover, its lifetime is said to be

15 000 hours (or “12 years,” at 3 hours per day)

Moreover, its lifetime is said to be

15 000 hours (or “12 years,” at 3 hours per day)

Street-lights

patio heaters

It’s not going to be easy to make a plan that adds up using renewables

alone. If we are serious about getting off fossil fuels, Brits are going

to have to learn to start saying “yes” to something. Indeed to several

somethings.

Estimates of theoretical or practical renewable resources in the UK

Power consumption per capita, versus GDP per capita,

Figure 30.1 (p231)