Britain to Encourage Both Nuclear and Wind Power LONDON - The British government on Friday announced far-reaching changes in energy regulation designed to encourage development of renewable energy and nuclear power while ensuring the country could meet its electricity needs. The changes will gradually quadruple the charges levied on consumers and businesses to help support electricity generation from low-carbon sources, to a total of about £9.8 billion, or $15.7 billion, in the 2020-21 fiscal year from £2.35 billion currently. The government forecasts that the new price supports will add 7 percent, or about £95 a year, to the average household electricity bill. Currently, such charges add 2 percent to energy bills, or £20 a year. The effort shows that Britain, despite an ailing economy, is sticking to the ambitious goals for renewable energy and emissions reductions set in 2008 under the Labour government of Gordon Brown. Britain is also shifting its approach toward energy. In the 1990s, Britain led Europe in deregulation of its energy markets. Now it is returning to a regime of greater market intervention to fulfill what the government considers to be an imperative to reduce greenhouse gases. Electricity generated from cleaner sources like nuclear and offshore wind is much more expensive than power generated by coal- or gas-fired plants. Companies will invest in clean energy only if given substantial incentives. The government hopes to attract £110 billion in energy investment through 2020. The proposed regulatory changes will be incorporated in an energy bill that is to be approved next year, with the new rules phased in from 2014. "In the 1990s there was a real move to make the U.K power market a kind of liberalized, supply-demand, price-driven market," said Howard V. Rogers, director of the gas program at the Oxford Institute for Energy Studies, a research concern. As soon as you introduce subsidies for wind, you undermine that principle. The proposed changes come after months of debate within the Conservative-Liberal Democrat coalition government. The Liberal Democrats favor tough goals to reduce emissions. The Conservatives, led by Prime Minister David Cameron, lean more toward promoting the use of natural gas. They also worry that wind farms will spoil the countryside, where many Conservative voters reside. The government proposal "will allow us to meet our legally binding carbon reduction and renewable energy obligations and bring on the investment required to keep the lights on and bills affordable for consumers," Edward Davey, the energy and climate change secretary, said in a statement. Mr. Davey added that the proportion of electricity coming from renewable sources would increase to 30 percent by 2020 from 11 percent today. Businesses are likely to welcome the bill because, if nothing else, it reduces the uncertainty that has made big investment decisions difficult. "This package will send a strong signal to investors that the government is serious about providing firms with the certainty they need to invest in affordable, secure, low-carbon energy," John Cridland, director general of the Confederation of British Industry, the country's main business group, said in a statement. The renewable energy industry said it would welcome increased government support. "This is a crucial announcement for the renewable energy sector," said Maria McCaffery, chief executive of RenewableUK, a trade association. This blows the last few months of political infighting completely out of the water. Some environmental groups, however, said that the government should set stricter emission targets for power companies. "By failing to agree to any carbon target for the power sector until after the next election, David Cameron has allowed a militant tendency within his own ranks to derail the Energy Bill," John Sauven, executive director of Greenpeace, said in a statement. It's a blatant assault on the greening of the U.K. economy that leaves consumers vulnerable to rising gas prices, and sends billions of pounds of clean-tech investment to our economic rivals. Others said they were appalled by support for new nuclear installations. While nuclear plants are low carbon emitters, they bring risks of accidents as well as the unresolved problem of what to do with spent fuel. Stephan Singer, head of energy policy in Brussels for the World Wildlife Fund, said his organization was "fundamentally opposed" to price supports for nuclear power. With energy costs already a major source of complaint, consumers are unlikely to be happy with the government plan. "These higher energy costs are likely to hit low income consumers hard," said Ann Robinson, director of consumer policy at uSwitch.com, which sells consumers electricity online at favorable rates.