Highlights

The weekend read: The rise of M6

The shift to the larger M6 wafer format could occur faster than many have expected. Promoted heavily by mono giant Longi, the format is said to be a good fit for both cell and module production, while still allowing for relatively trouble-free integration into PV arrays. And it all began in China.

Israel launches 300 MW solar-plus-storage tender

The government wants a 300 MW solar plant linked to large scale storage in the Negev desert. Construction is planned for late 2021 and completion in 2023.

1

Perovskites meet the stability standard

European research group Solliance says its perovskite modules have passed three key industry standard reliability tests: Light soaking, damp heat and thermal cycling. The group said it is the first time perovskite modules of that size have achieved such results and represents a milestone in the technology’s move toward commercialization.

Qatar’s 800 MW tender draws world record solar power price of $0.01567/kWh

Utility Kahramaa has revealed the winning consortium initially offered $0.01745/kWh with the price then reduced based on financial market indices.

2

Solving seasonal storage with aluminum cycling

Scientists at Switzerland’s University of Applied Sciences Rapperswil have demonstrated an aluminum conversion process which could be valuable for long-term renewable energy storage. Simulations suggest that by employing the process, a new multi-family building in Switzerland could meet all its energy demand from a 7-11 kWp solar system.

Broken promises: Legal recourse for retroactive FIT cuts

Generous feed-in tariffs, a short-lived boom and retroactive cuts – the early stages of large-scale solar deployment in Europe followed a regrettable pattern. Project developers have increasingly turned to the legal system for restitution, and many have been successful, writes Daniel R. Meagher, a partner in Winston & Strawn’s international arbitration practice.

Congolese president makes off-grid renewables pledge

Félix Tshisekedi reportedly said he wants to use standalone energy units, such as solar home systems, to bring electricity to at least 21 million people in the next nine years.

‘China will add 35-38 GW of solar this year’

Power generation statistics released by the National Energy Administration appear to confirm the nation added 12 GW of solar last month. China also deployed another 41 GW of polluting coal-fired power plants last year.

2

Where there’s smoke… there’s reduced PV output

A minor concern it may be, compared to the tragic loss of life, livelihoods and biodiversity caused by the bushfires still ravaging parts of Australia, but reduced output by PV systems due to smoke haze is an unwelcome bi-product of blazes that have burned at a scale and ferocity never seen before.

Transitioning to larger wafers

Since 2017, 156.75 mm M2 wafers have been the standard. However, improvements in cell efficiency appear to have hit a bottleneck, making wafer size a hot topic among manufacturers once again. In the second half of 2018, 158.75 mm G1 mono wafers were introduced to the market. Corrine Lin of PVInfoLink argues that while G1 will likely become the mainstream format over the next two years, 166 mm M6 wafers and 210 mm M12 wafers are presenting new options for manufacturers.

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