China

Researchers in China have developed a smart solar window tech based on a photovoltachromic device that is able to achieve a high pristine transmittance and to be self-adaptable to control indoor brightness and temperature. The device was assembled via a full solution process in an architecture incorporating glass, a fluorine-doped tin oxide (FTO) layer, a perovskite-based PV cell, an electrochromic gel, another FTO layer, and glass.

Developed by Chinese researchers, the novel design methodology consists of utilising metal brackets as mounting structures, conventional solar panels, and a grooved glass plate placed between the solar panels. According to its creators, it ensures a farmer’s average income increases by 5.14 times, including the solar power generation business. A system built with this approach should cost around €715 (AU$1145) per kW installed.

The manufacturer has launched sodium-ion products online. Production has begun and will be easily scalable, according to the CATL chairman. Researchers have been keen to make the technology work as it offers a cheaper, more environmentally friendly alternative to lithium-ion products.

Polluting energy sources received more than $3 trillion from the EU and 19 of the world’s largest national economies over that four-year period, despite G20 members having pledged to phase-out fossil fuel subsidy and address climate change back in 2009.

A gigafactory, as the name indicates, is a facility that aims to produce Li-ion cells at a gigawatt-hours scale of total capacity, so they can then be used in electric vehicles or stationary storage applications. The global production capacity of Li-ion cells is expected to reach 740 GWh by the end of 2021 – almost a threefold increase from 2017 – and Europe will account for 8% of the total. João Coelho, an analyst at Delta-EE, looks at how Europe plans to catch up.

The volume of new PV generation capacity added in the first half was higher than expected, given the rising input costs seen in recent months, but solar was nevertheless outpaced by new wind farms in the first six months of 2021.

A 125 kW/500kWh storage unit will be tested by China’s National Photovoltaic and Energy Demonstration Experimental Center. The storage system will be provided by Canadian specialist VRB Energy.

Indonesia will catch the eye too over the next nine years, according to Wood Mackenzie analysts, as its market grows from 300 MW to 8.5 GW.

According to Asia Europe Clean Energy (Solar) Advisory Co. Ltd, demand for solar PV in China could “effortlessly” surpass 100 GW in 2022, following a year of “flat” demand in 2021. It adds that a “massive overcapacity” situation in the production sector is looming. Meanwhile, the distributed solar PV market is on track for huge growth, with potential for annual demand to reach upwards of 20 GW+ from next year.

State body the NEA has given its provincial offices until July 15th to suggest counties where a solar mandate – which rises to at least half of all government roof space – can be rolled out. Selected companies will be awarded whole-county contracts.