New York Times: Beset by an outdated grid, escalating costs and delays at massive offshore wind farms, and a domestic biofuels industry priced out by U.S. imports, the United Kingdom will struggle toward its 2020 renewable energy targets. Old coal, gas and nuclear power plants generating a quarter of the country’s energy will need to be shut by 2020, so massive investments are needed to secure both conventional and renewable supplies. And the credit crisis could not have come at a worse …