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%.
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.
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.
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.
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 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.
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.