Residential PV

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.

Australia is a world leader in rooftop solar deployment, but the head of Queensland-based renewables company REA Global has criticized the nation’s solar installation standards for being out of date and unsafe.

A 10 kW PV system has been feeding electricity into the Swiss power network since 1982. A research team has investigated the performance of the array’s first 35 years of life and has found that solar modules can target – at least in temperate climates – service lifetimes of 35 years, and that the bill of materials matters, a lot!

Too big? Too small? Just right? Many factors need to be considered when deciding how large or small to make your rooftop solar array.

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 roofspace – can be rolled out. Selected companies will be awarded whole-county contracts.

Although self-consumption of solar power is the optimal economic approach, the expense of household batteries at present outweighs the increased ability they offer to use electricity generated on the roof. Whether aggregated ‘virtual batteries’ offer better returns is an open question, due to lack of electricity company transparency.

India’s energy transition will not succeed without rooftop PV and roll-out is hindered not only by a lack of household finance, but by the fact many of the nation’s flat roofs are enjoyed by residents. Germany’s international development agency has proposed a solution.

Australia’s Commodore Independent Energy Systems has evaluated how much customers save by using solar water pumps compared to diesel or mains-connected pumps.

Australian company ClearVue Technologies says it has a fully transparent, scalable, industry-ready solar window in production. It claims that it’s now just 18 months away from cracking 5% efficiency, thanks to a research partnership.

And that figure is based on a less ambitious climate change policy than the one Ottawa has committed to since the North American Renewable Integration Study started, in 2018.