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Technology and R&D

Residential PV power forecasting method based uniquely on direct radiation

Researchers in Spain have created a novel PV forecasting method that uses only direct radiation as a parameter. They found it to be “comparable, if not superior” to four established forecasting techniques. The method could help homeowners with PV systems decide when to use electricity-intensive appliances and cleaning systems.

Researchers build 16%-efficient mini perovskite solar module resistant to UV light-induced degradation

A U.S. research team has built a 15 cm2 perovskite solar module with improved stability and efficiency thanks to a polymer hole transport layer that reportedly improves the panel stability and efficiency.

World’s first anode-free sodium solid-state battery

Researchers at the Laboratory for Energy Storage and Conversion have created a new sodium battery architecture with stable cycling for several hundred cycles, which could serve as a future direction to enable low-cost, high-energy-density and fast-charging batteries.

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All solar cell efficiencies at a glance – updated

The research group led by Professor Martin Green has published Version 64 of the solar cell efficiency tables. There are 19 new results reported in the new version.

Rutgers University studies co-locating solar energy with crop production

The university is working with SolarEdge to study the practices of agrivoltaics, or co-located solar and farming.

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Solar startup claims doubled energy per acre with terrain-following array

California startup Planted Solar uses construction robots and high-density arrays to deliver what the company says are higher energy outputs and lower balance of system costs.

Princeton NuEnergy scores $30 million in funding for lithium battery recycling

The low-temperature plasma-assisted separation process, developed at Princeton University and now trademarked as LPAS, produces battery-grade cathode and anode materials suitable for direct reintroduction into cell manufacturing.

Long-duration stability of perovskite solar cells

US scientists have analyzed the impact of “seasoning” a formamidinium lead iodide solution with two-dimensional (2D) perovskites. They have found that the template improved the efficiency and durability of their solar cells.

Swift Solar closes $27 million in funding, plans perovskite solar factory

Swift Solar, a specialist in perovskite tandem photovoltaics, plans to build a factory in the U.S. in the next two to three years to manufacture thin-film solar.

Concentrator photovoltaic module based on surface mount technology

A research group in Canada has optimized the performance of concentrator photovoltaics by using the so-called surface-mount technology for thermal management. The CPV module prototype utilizes four non-interconnected III-V germanium cells, a Fresnel lens, and a transparent glass printed-circuit board.

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