France’s Sunbooster has developed a technology to cool down solar modules when their ambient temperature exceeds 25 C. The solution features a set of pipes that spread a thin film of water onto the glass surface of the panels in rooftop PV systems and ground-mounted plants. The cooling systems collect the water from rainwater tanks and then recycle, filter and store it again. The company claims the technology can facilitate an annual increase in power generation of between 8% and 12%.
The Asian Development Bank says developing countries in Asia and the Pacific should consider developing their own solar industry supply chains as the Covid-19 pandemic has exposed their over-reliance on China to carry through the energy transition.
Solar developers secured 131.4 MW of the capacity awarded in the auction, while a biomass installation accounted for the remaining 500 kW of capacity. The national energy regulator will provide 15-year feed-in premium payments to the winning projects.
The solar plant was built with fixed structures on a 400-hectare water surface at a fishery in Anhui province. The project was the first unsubsidized plant approved by the National Development and Reform Commission (NDRC) in 2019 and is selling power at a price of RMB 0.3844 ($0.054) per kWh.
Brazilian consultancy Greener has conducted a survey of more than 500 solar companies in Brazil to assess the economic impact of the Covid-19 pandemic. The results show that demand has already started to slow down, and that PV system prices are on the rise.
According to a Norwegian group of researchers, the reactive power capability of three-phase voltage source inverters can help to reduce problems caused by the intermittent nature of solar power on distribution networks. The scientists claim they are preferable to expensive grid infrastructure such as under-load tap changing transformers, step voltage regulators, and fixed and switchable capacitors. The group has developed a system model featuring a 7.63 kW PV array module, a three-phase voltage source inverter with 9.5 kVA of capacity, a boost converter, a three-phase dynamic load, and a utility grid.
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