Technology

Grid operator ISA CTEEP has started commercially operating a large-scale battery energy storage system (BESS) at the Registro substation in the Brazilian state of Sao Paulo. The 30 MW/60 MWh BESS is expected to provide backup power to the grid during hours of peak demand in summer.

India’s Poweron has developed wall-mount hybrid solar inverters with nominal power ratings of 3.68 kW, 4.6 kW, and 5 kW. They are compatible with lead-acid and Li-ion batteries.

Moroccan researchers have proposed the use of luminescent solar concentrators for power generation in greenhouses and agrivoltaic projects. They say they are capable of producing electricity in low-light illumination and converting ultraviolet light to visible light that could be used for crops.

China’s Bslbatt said its new product has a storage capacity of 5 kWh and a nominal voltage of 51.2 V. It measures 670 mm x 540 mm x 88 mm and is 90 mm thick.

Bill Gates-backed Rondo Energy has released the “brick toaster” heat battery, which stores renewable energy and dispatches heat and electricity for steel, cement, and chemical production.

Ibis Power has developed a rooftop system that combines solar with wind turbines designed for medium-sized structures and high-rise buildings. It claims its PowerNEST system can produce six to 10 times more energy than standalone rooftop solar. The company has already installed five projects in the Netherlands.

Mitsubishi has released a cascaded air source heat pump that can produce between 7.8 kW and 640 kW of heat. It is reportedly able to generate hot water at a temperature of up to 70 C without boost heaters.

South Korean scientists have developed a highly selective palladium composite membrane on porous metal supports to cut the ammonia content of the permeated hydrogen stream. Dutch researchers, meanwhile, have presented two alternatives to this strategy – increasing the thickness of the membrane selective layer, or using a purification unit in the permeate of the membranes.

TCL Zhonghuan has announced wafer price cuts, Shenzhen Energy unveiled a plan to build a 2 GW solar-storage project, and the Chinese authorities have announced measures to expedite grid connections for new solar and wind plants.

Kaco has launched a new line of blueplanet NX3 three-phase string inverters for applications ranging from small residential rooftop arrays to projects on commercial buildings. They have outputs between 3 kW and 33 kW, a maximum efficiency of 98.0%, and a maximum European efficiency of 97.6%.