SunPower, REC Group sign development agreement to build US residential solar panels

SunPower and the REC Group have unveiled a new 470W solar panel, dubbed ‘Monolith’, which is designed for use in the US residential sector.
Thicker aluminium oxide layer is ‘dominant parameter’ in limiting TOPCon UVID degradation

The inclusion of a thicker aluminium oxide layer in TOPCon solar cells could provide superior resistance to UVID, according to UNSW.
2025 concludes with 1.5GWh+ of European BESS project completions, financing and supply deals

It’s our first week back to normal service so here’s a roundup of the past few weeks of BESS action in Europe, with projects moving forward in Romania, Denmark, UK, France, Spain, Albania, Germany and Austria.
BRUC raises US$554 million to refinance debt, add storage to 858MW Spanish solar PV portfolio

BRUC has raised €474 million (US$554 million) to facilitate the addition of BESS to an 858MW Spanish solar portfolio.
Zelestra’s solar-plus-storage Spain offtake deal is ‘PPA 2.0’, firm says

IPP Zelestra and utility EDP’s recent PPA deal for a solar-plus-storage project in Spain was the first of its kind in Europe and ‘moves the market forward’, a Zelestra executive told Energy-Storage.news.
Spain launches €355 million renewables manufacturing programme

The Spanish Ministry of Ecological Transition (MITECO) has launched a new renewables manufacturing subsidy programme.
‘Turbulence and legislative hurdles’ cloud the picture for US solar: SolarEdge on policy challenges in 2025

PV Tech spoke to Marty Rogers of SolarEdge about how US policy rulings and policy uncertainty affected his company’s work in 2025.
Researchers tackle TOPCon ‘efficiency-cost-bifaciliaty trilemma’

Chinese researchers have developed a process to boost the efficiency and bifacial performance of TOPCon solar cells while reducing silver consumption.
The PV Review, 2025: A year of performance and reliability issues for TOPCon and n-type solar PV modules

The PV Review, 2025: this year has seen many papers and reports on solar PV modules reliability and performance issues, especially with TOPCon.
PV Tech Power 44 out now: The evolution of PV quality assurance

The latest edition of our print journal, PV Tech Power, is out today and available to download, where we deep dive into PV quality assurance.