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Technology and R&D

Bladeless wind energy innovation aims to compete with rooftop solar

A compact, “motionless” wind turbine with a magnetic generator designed for large commercial rooftops provides 5 kW of capacity per unit. Aeromine Technologies secured Series A funding for scaling its innovative design.

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Quantifying losses from harmonics in solar facilities

Gamesa Electric has released a white paper on losses due to harmonics in PV plants, including an independent study that compares the performance of ultra-low total harmonic distortion inverters.

NREL-led consortium releases PV reliability forecasting tools

The Durable Module Materials consortium (DuraMAT) announced in its latest annual report the availability of new PV forecasting tools, and new research results towards the goal of more reliable PV modules.

Researchers demonstrate 25%-efficient perovskite-cadmium tandem solar cell

University of Toledo researchers say the cell has a top perovskite cell with a transparent back contact made of indium zinc oxide and a commercially established cadmium telluride bottom device. They claim the champion tandem cell has the potential to reach a 30% efficiency.

Solidion seeks to provide sodium-based electrolytes as an alternative to lithium-ion batteries

The company says the technology’s better cycle times and potential lower costs would benefit grid storage and EV sectors.

Longi announces 27.30% efficiency for heterojunction back contact solar cell

The Chinese module manufacturer said the new efficiency record was confirmed by Germany’s Institute for Solar Energy Research (ISFH).

Novel PV-driven desalination tech achieves lower levelized cost of water

Scientists led by the Massachusetts Institute of Technology (MIT) have designed a new PV-powered desalination system based on the time-variant electrodialysis reversal (EDR) technology. The proposed system reportedly achieves lower levelized cost of water than conventional solar-powered desalination techs.

South Korea plans 120 GW space solar project

Two Korean research institutes are designing the 2.2 km × 2.7 km Korean Space Solar Power Satellite project with the aim of providing approximately 1 TWh of electricity to the Earth per year. The proposed system should use 4,000 sub-solar arrays of 10 m × 270 m, made out of thin film roll-out, with a system power efficiency of 13.5%.

Improving solar panel recyclability with lasers

The National Renewable Energy Laboratory developed a proof of concept for a method to remove polymers from solar panel manufacturing to enable more efficient recycling.

Born in the USA: First silicon solar cell celebrates 70th birthday

On April 25, 1954, U.S. researchers presented the first prototype of a usable solar module. The efficiency at that time was around 6%. A lot has happened since then.

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