Some of the largest countries on Earth made it clear this week at the World Economic Forum in Davos, Switzerland that, in many cases, renewable energy is just a few years away from reaching grid parity with fossil fuels without subsidies. Worldwide investment in renewable energy totaled $187 billion in 2010, while investment in coal and natural gas was $157 billion. With government subsidies worldwide in jeopardy because of financial woes, the International Energy Agency says countries should hold on for just a few more years until renewables catch up to emissions-laden power companies — which could happen as early as 2015 — after which, it is anyone’s game.

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In the Developing World, Solar Is Cheaper than Fossil Fuels

Advances are opening solar to the 1.3 billion people who don’t have access to grid electricity.

The falling cost of LED lighting, batteries, and solar panels, together with innovative business plans, are allowing millions of households in Africa and elsewhere to switch from crude kerosene lamps to cleaner and safer electric lighting. For many, this offers a means to charge their mobile phones, which are becoming ubiquitous in Africa, instead of having to rent a charger.

Technology advances are opening up a huge new market for solar power: the approximately 1.3 billion people around the world who don’t have access to grid electricity. Even though they are typically very poor, these people have to pay far more for lighting than people in rich countries because they use inefficient kerosene lamps. While in most parts of the world solar power typically costs far more than electricity from conventional power plants—especially when including battery costs—for some people, solar power makes economic sense because it costs half as much as lighting with kerosene.

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