Finland-based Vaisala last week released a paper that compares observational data from nearly 200 ground stations across six continents with satellite-derived irradiance records from five different versions of the company’s global solar dataset.
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China has installed 20 gigawatts of new solar power just in the first half of this year. This achievement beats analysts’ expectations by a wide margin. China wants to add 20 GW of new solar every year for the next four, but apparently could do twice that. At the end of 2015, China had about 40 gigawatts of installed solar power, so in just six months it has added half as much again.