The costs of solar and coal power will be comparable across China by 2023 as solar energy conversion becomes more efficient and the cost drops, according to a new study by researchers in China and the United States.The researchers also found that solar power, when paired with the capacity to store energy for later use, could meet more than 40 per cent of the country’s electricity demands by 2060, at less than 2.5 US cents per kilowatt-hour.The study suggests “solar plus storage” could be…

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