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Building perovskite solar cells with waste toner carbon

Scientists in China have fabricated 11.78%-efficient fully printable perovskite solar cells by using an electrode made of waste toner carbon from printer cartridges. The cell achieved an open-circuit voltage of 0.88 V, a short-circuit current density of 24.64 mA cm, and a fill factor of 54.56%.


CIGS solar panels for weight-constrained rooftops

U.S. thin-film module manufacturer Sunflare is ramping up production at its factory in China. The company makes four different CIGS modules.


Ireland announces plan to install 600,000 heat pumps by 2030

The move is part of the National Development Plan 2021-2030, which aims to increase the share of renewable electricity in the generation mix up to 80% and to allocate around 15.5 GW of wind and solar capacity through an auction scheme.


Panasonic launches 5 kW fuel cell system for commercial applications

The system has dimensions of 834×417×1,766 mm and weighs 205 kg including the design panel. It achieves an electrical efficiency of 56% and can be connected with a hot water storage unit.


New discovery could make organic PV competitive with crystalline silicon

A group of international researchers has observed how non-radiative charge recombination occurs in organic PV and claims to have identified a potential solution that could bring this solar tech closer to crystalline silicon in terms of power conversion efficiency.


New mounting structure for floating PV

The float can host conventional solar modules with a 120-cell design, a power output of over 400 W, and a weight not exceeding 30kg. It is being developed by South Africa-based Phelan Energy Group, in Dubai.


Solar tile with 14.2% efficiency from Denmark

Dansk Solenergi ApS has developed a 13.6 kg tile that can be used for both new buildings and building renovation. The device is currently being produced in Denmark, where the company operates a 40 MW line.


Hybrid fuel cell-battery storage system for solar applications

Scientists in Thailand have built a hybrid system based on a 3 kW fuel cell and a 50 kWh lead-acid battery that is intended for storing solar power. They also sought to identify the best DC coupling voltage between the two devices in order to optimize their combined performance.


Closed-loop pumped hydro on the rise

Closed-loop pumped-hydro storage offers more chances to minimize environmental effects on water sources and overcomes the problem of finding suitable sites. According to an Australian research team, closed-loop systems could prevail on open-loop systems in the future and this trend is confirmed by another group of scientists from the United States.

Fimer unveils two new string inverters and a residential battery

The Italian power electronics specialist has launched a single-phase inverter, a three-phase device, and a residential battery. The three products will be available for sale starting from January.