You're right, CHP is likely best suited to temperate climates. It is increasingly apparent that energy solutions are regional and that there is no one size fits all, though I do believe that energy efficiency needs to lie at the heart of decision making.

If policy makers would only ask at every juncture "is this an energy efficient solution?" then I think we would be in better shape.

Even in warmer countries, the hot water from CHP can be used for domestic and commercial uses, and I'm sure you could find industrial uses for it, for example timber mills. Just whack up the plant, set aside a couple of hectares for industrial buildings and then put out some ads asking if there are any would-be factory owners who want cheap hot water.

Could be good to use as a greenhouse with aquaculture like http://www.dailymail.co.uk/sciencetech/article-1158980/Frankenfarm-food-...

Good place to stick the CO2 too.

Sure, you can pmp the CO2 into a greenhouse, but it is simplier to send the precious plant food straight it in the atmosphere and use it as a transport medium for carbon distribution.

Consider it as a donation to poor African countries, which could use increase in crop yields. All of the earth agriculture benefited from the increase in atmospheric CO2 concentration occuring in the past century.

Euan, I totally agree that energy solutions are regional. I think that as our economic situation shakes out, we will see that region solutions will be the answer to many of our needs - including access to financing, food, and some manufactured items. Using what we have access to locally, whether that is natural gas, coal, solar, wind, biomass just makes sense.