Technology and R&D

Scientists from Australia’s national science agency and the electricity research and development arm of Google have developed a new ‘smart’ inverter they claim is almost twice as fast and about 50% more efficient than existing commercial inverters.

Belgian energy company Perpetum Energy has built a 40 MW solar carport at Pairi Daiza, a privately owned zoo and botanical garden in Hainaut, Belgium. It said the total investment reached €40 million ($43 million) investment.

Bluenergy is developing a 1.1 MW PV system on Udinese Calcio’s football stadium in Italy. The company said the project might include a 300 kW battery.

The new three-phase hybrid inverter series includes five versions with power ratings of 6 kW to 15 kW. They feature efficiencies of up to 98.2% and a maximum input voltage of 1,000 V.

Scientists in the Emirates have conceived a new space vector pulse width modulation method that reportedly reduces switching losses and increase efficiency in three-phase photovoltaic inverters. The proposed technique was found to have a higher efficiency, while providng lower common-mode voltage, leakage current and total harmonic distortion compared to traditional pulse width modulation approaches.

Chinese manufacturer Sigenergy has launched a new modular energy storage solution that combines a hybrid inverter and battery pack with a built-in energy management system. The inverter series offers a range of power options from 50 kW to 110 kW.

The latest test method addresses the fire propagation behavior of a residential battery energy storage system if a thermal runaway propagation event leading to an internal fire were to occur during the system’s lifetime.

A German research team has developed a new technique to recover and reuse methylammonium lead iodide (MAPbI3) from perovskite solar cells via solvent extraction. Such recycling method can reportedly save up to 61% costs in the lab and industrial manufacturing.

Using a surrogate model for finite element analysis, the scientists have designed an aluminum frame for bifacial modules that reportedly minimizes deflection and production costs, without adding too much weight. Deflection can lead to cracking or delamination of ribbons inside the module, resulting in an increase number of damaged cells.

Agri-Light has launched its first pilot agrivoltaic project, using a two-axis solar installation on a rail system to move solar panels horizontally above a vineyard in the Negev Desert. The results are due this summer, and the company plans to build commercial projects in Israel and Spain next year.