The European Solar Test Installation (ESTI) has confirmed the results of Long’s new perovskite/silicon tandem solar cell. It is currently the world’s second best efficiency record for a perovskite/silicon tandem cell.
“Improving the efficiency of cell conversion and lowering the cost of electricity are the eternal themes that guide the development of the photovoltaic industry,” said Li Zhenguo, Long’s president, in a press release.
The European Solar Test Installation (ESTI) has certified the results, which represent a 1.7% increase over the previous efficiency rating of 31.8%, announced at the SNEC conference in late May in Shanghai, China.
The U.S. National Renewable Energy Laboratory (NREL) has ranked Long’s latest efficiency results as the second highest on record, after King Abdullah University of Science and Technology (KAUST) achieved 33.7 percent efficiency in June. Earlier in April, KAUST reported 33.2% efficiency for a perovskite/silicon tandem PV cell.
Longi has broken the world record for solar cell efficiency 14 times since April 2021. It claimed the world’s highest efficiency for silicon cells in November 2022, with an efficiency of 26.81% for an undefined heterojunction solar cell.