China

A Chinese research group has sought to understand the relative performance of two weather prediction techniques based on ensemble modeling for solar energy forecasts. The scientists applied the two methods in combination with three classical post-processing methods.

Researchers in China have developed a photovoltaic cold storage system that is reportedly able to improve refrigeration capacity and ice storage rate. The system is said to ensure a stable cooling system operation for the refrigeration needs of agricultural products.

Margrethe Vestager, the executive vice president of the European Commission, said this week that the EU authorities are investigating the deployment of several wind farms in Spain, Greece, France, Romania and Bulgaria.

Livoltek has developed an all-in-one storage system for residential applications, featuring a storage capacity of up to 25 kWh and compatibility with five different inverter models, as well as the option to integrate with electric-vehicle (EV) chargers.

China’s National Energy Administration (NEA) and State Grid Corp. of China (SGCC) may ramp up PV curtailment to clear up space for new renewables projects that are struggling to obtain grid connections. Only up to 5% of PV output can currently be curtailed from solar plants, but the authorities are trying to decide whether to take a greater percentage of generation offline.

The new product combines the NEO 800TL-X Microinverter and the NOAH 2000 Battery. Up to four batteries can be stacked, for up to 8,192 Wh of storage capacity.

Researchers in China have designed an organic solar cell the uses an acceptor based on selenium as an alternative to commonly utilized non-fullerene acceptors. The new acceptor enabled the cell to have reduced non-radiative recombination loss and improved dielectric constant.

Researchers in China have conducted a numerical study on the wind sensitivity of offshore floating solar plants. They have tested six row-arrangements of panels and have found an optimal system configuration that is reportedly less sensitive to wind direction.

Researchers in China have applied a machine learning technology based on temporal convolutional networks in PV power forecasting for the first time. The new model reportedly outperforms similar models during all seasons.

Beny New Energy says its new charger can deliver power at a range of 360 kW—600 kW. It supports various connection standards.