Chinese authorities in six provinces –Guizhou, Chongqing, Shanxi, Sichuan, and Jiangsu, Guanxi, as well as Beijing City, have published draft policy documents which expand and steepen time-of-day power pricing. The latter four will also implement new peak-period electricity prices from July. Each province’s planned measures are different. In Guizhou’s case it’s notable that peak hours include the period from 10am to 1pm, reflecting its poor solar output now – and in the future considering its rainy weather. Guizhou’s price ratio between peak, average and low demand periods is now 1.6 to 1 to 0.4 – so four times the price at peak compared to the middle of the night valley period. In Beijing, the ratio is 1.8 to 0.3 for…