Battery storage

Last year, German network operators received 9,710 connection requests for battery storage systems planned for commissioning at the medium-voltage level. These requests correspond to a total of 400 GW/661 GWh. At the transmission network level, large-scale battery storage projects with a combined capacity of 51 GW have already been approved for development in the coming years.

While solar modules and batteries have become icons of rapid progress, most energy models are still stuck in the past. A new global analysis shows that the cost of renewable energy has fallen far faster than expected. Solar PV, wind power, and battery technologies have already reached price levels that models once placed many decades ahead – a misplaced pessimism that risks misdirecting billions in climate investment and could distort long-term defossilization strategies.

The Chinese company says that its new ESA series is available with a hybrid inverter ranging from 3 kW to 10 kW and storage capacities of 5 kWh to 48 kWh. The IP66-rated product supports an MPPT current of up to 20 A on the PV side and allows 200% PV oversizing, according to the manufacturer.

The PPA price for pure photovoltaic projects has fallen by 20% over the past year, making such contracts less competitive. However, clear structures for bankable hybrid PPAs are now beginning to take shape, says Pieter van der Meulen, Senior Account Manager at LevelTen Energy, in an interview with pv magazine.

From ESS News China Petroleum & Chemical Corporation (Sinopec) and South Korea’s LG Chem have signed a joint development agreement to advance key materials for sodium-ion batteries, as the technology moves closer to mass commercialization. Under the agreement, the two companies will collaborate on developing cathode and anode materials for sodium-ion batteries, targeting applications in […]

The Chinese firm says its new EnerCube product is designed for commercial and industrial applications. It has a capacity of 2,250 kWh.

IEC Standards help to make the grid more resilient as the impact of climate change intensifies.

After a record year, the European power purchase agreement (PPA) market has declined sharply. At an industry gathering this week in Amsterdam, participants highlighted rising PPA complexity and potential solutions, including how to handle negative prices in solar PPAs and the move toward hybrid PPAs with battery storage.

The company has produced its first sodium-ion battery prototype and, in collaboration with Spanish research institute CIC energiGUNE, developed sodium-ion cell prototypes that have shown “very promising results.”

The Swedish company stated that its new product was designed for use in compact, molten salt energy storage applications, eventually in combination with PV power. In its standard configuration, it can reportedly withstand temperatures up to 400 C and pressures up to 60 bar.