the uk leads the world, and the government wants to quadruple production to 40 gigawatts by 2030. that should be more than enough to power every home in the country — quite an achievement. but houses only account for about a third of total for about a third of total electricity demand. there's also offices and factories to consider and electricity isn't the only source of power in our homes, so offshore wind alone can't get the uk to its target of net zero carbon emissions by mid—century. but it is a big step forward in the government says it is getting cheaper. last year it estimated that in offshore wind farm opening in 2025 would be able to generate one megawatt hour of electricity for £57. that is far cheaper then a few years ago, and less expensive than gas or nuclear. but one big problem with wind is that sometimes it doesn't blow