That sounds grim. I suppose we should be grateful that the UK has not been wasting money on doing things like installing adequate insulation in new builds over the last 25 years! ;-)

I wonder if in fact the National grid and so on calculate that an energy shortage and very high prices will increase their profitability?

NGC are technically a non profit organization

As far as I know National Grid are a FOOTSIE company (NG.L) with a market cap of around £20 billion - though I suspect subject to a fair bit of regulatory control.

http://uk.finance.yahoo.com/q?s=NG.L