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Photovoltaics, control strategies have little impact on optimal heat pump size in retrofit buildings

New research from Germany shows that the optimal size of residential heat pumps in retrofit buildings can be achieved without factoring in their potential connection to a PV system and related control strategies. An optimal sizing strategy, by contrast, should not neglect electricity price assumptions.

Inverted perovskite solar cell based on lead carbanion achieves 25.16% efficiency

Developed by Scientists in China, the solar cell reportedly achieved the highest open-circuit voltage ever recorded for an inverted perovksite PV device. The lead carbanion layer was responsible for reducing defects at the interface bewteen the perovskite layer and the electron transport layer.

Lithuania’s largest PV carport powering 44 EV chargers

Lithuania-based Soliport has built what it claims to be the largest solar carport in the Baltic states. The 250 kW system is connected to 44 electric vehicle charging points and injects only a small portion of the electricity it generates into the grid.

New research shows vulnerability of TOPCon solar cells to contact corrosion

Researchers at the University of New South Wales claim to have identified new TOPCon contact degradation mechanisms that are significantly influenced by the combination of ions and aluminum-silver paste compositions. The primary degradation mechanism was a significant increase in series resistance.

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Germany has solar LCOE ranging from €0.041/kWh to €0.144/kWh

A new report rom Fraunhofer ISE shows that the cost of PV systems in Germany is currently between €700/kW and €2,000/kW. The study also shows that the levelized cost of energy of solar-plus-storage spans from €0.06/kWh to €0.225/kWh.

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Assessing economic feasibility of liquid air energy storage

Researchers have conducted a techno-economic analysis to investigate the feasibility of a 10 MW-80 MWh liquid air energy storage system in the Chinese electricity market. Their assessment showed that a significant level of price volatility is currently a crucial factor for the commercial maturity of this storage technology.

Copeland debuts industrial heat pump

The U.S. heating specialist said its Vilter VQ95 heat pump is an ideal solution for district heating and industrial processes. It has a heating capacity of 1 MW to 5 MW per skid and can reportedly provide a temperature of up to 95 C.

Waaree unveils 730 W dual-glass heterojunction solar module

Waaree has showcased an n-type dual-glass photovoltaic panel with a power conversion efficiency of up to 23.5%.

Future Fund Oman invests $156 million in polysilicon factory

The polysilicon manufacturing facility is currently under construction by United Solar Polysilicon near Muscat. It will have a capacity of 100,000 MT.

Gambia launches tender for 50 MW solar-plus-storage project

Gambian utility Nawec is seeking proposals for a 50 MW PV facility planned to be deployed in Soma, south of the River Gambia. The project is part of a broader solar project eventually including unspecified battery storage capacity.

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