Collapsing prices are making solar and battery storage incredibly competitive.
Since 2003, we have made the case that solar energy has the most potential out of all of the alternative energy technologies. Solar power is already the same price or cheaper than new fossil fuel capacity in over 30 countries. Last year, in Chile, an unsubsidized solar power contract was signed for 2.15 cents per kilowatt-hour (kWh) versus the 6 cent per kWh cost to bring on new gas and coal capacity. In the sunniest regions of the world, solar is simply the cheapest unsubsidized power source.
In the last decade, the cost of 20-year solar power contracts in the U.S. has fallen by a factor of eight. In Tucson, Arizona, an unsubsidized solar contract was recently signed for 3.3 cents per kWh. Outside the sunny southwest, in Colorado, an unsu...
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