Technology

Researchers at University of Jaén in Spain have demonstrated a semi-transparent crystalline silicon solar photovoltaic module with rear-side optical concentrators for agrivoltaics applications.

The Italian renewable energy company said it will validate Swift Solar’s 28% efficiency perovskite-silicon tandem technology in a utility-scale project.

The Chinese manufacturer said the tandem device was developed through a dual-buffer layer strategy that improves interfacial adhesion while preserving efficient charge extraction. The efficiency result was certified by the US Department of Energy’s National Renewable Energy Laboratory (NREL)

South Korea has allocated KRW 33.6 billion ($22.8 million) for R&D on perovskite-silicon tandem solar technology with a goal of commercializing 28%-efficient modules by 2030, according to the Ministry of Economy and Finance.

Researchers in the United States have developed a photonic curing technique using laser sintering to rapidly heat and cure copper pastes on temperature-sensitive solar cell substrates without causing thermal stress. The process purportedly produces dense, low-porosity copper layers with strong adhesion to indium tin oxide, achieving low bulk and contact resistivity.

Naturgy and BlueNewables are developing a 1 MW floating solar installation off Spain’s Mediterranean coast, with two 500 kW units designed for open-sea operation and scheduled to begin testing in 2026.

In its latest monthly column for pv magazine, the International Solar Energy Society (ISES) promotes the biennial Solar World Congress (SWC), which took place in Fortaleza-Brazil in November 2025, a few days before the COP30. The SWC scientific program has traditionally been dominated by presentations on solar radiation and solar thermal applications, but this year, photovoltaics was the focus of most of the presentations. This reflects the massive adoption of PV all over the globe, which, at the current pace, will dominate the electricity mix by the end of the decade.

Only months after inaugurating the world’s largest sand battery – a 1 MW/100 MWh thermal storage system – Polar Night has committed to building a project twice its size.

A research team in Spain has built what it claims to be the world’s most efficient perovskite solar cell using MXenes or any other type of 2D-materials. The device relies on a Mxene interlayer that suppresses non-radiative recombination and improved charge extraction at the interface between the perovskite absorber and the electron transport layer.

Scientists in China have proposed a novel scheduling framework for microgrids based on hybrid PV and a small modular nuclear reactors. The framework uses multi-objective distributionally robust optimization with a real-time reinforcement learning mechanism and is reportedly able to reduce operational costs by 18.7%.