How to size PV systems and batteries
Experts from Fonte Solar, Huawei, and Greener have exchanged solar-plus-storage tips, insights, and case studies at the invitation of pv magazine. In a panel at Intersolar South America 2025, they highlighted the need to understand consumption profiles and customer needs, as well as the technology’s limitations and potential.
Italy allocates 1.72 GW in rooftop PV tender for agricultural firms
The Italian government has awarded €2.35 billion ($2.74 billion) in subsidies to 22,942 rooftop solar projects totaling 1.72 GW, fully allocating the budget under its agrisolar program for agricultural firms.
Finnish glass maker offers PV systems integrated into glass balcony parapets
Finland-based Lumon has integrated balcony PV modules into a glass parapet, maintaining the facade’s appearance without visible technical components. The first project using the product has already been completed in Finland.
Sungrow debuts 2.5 kW microinverter
The Chinese company said its new microinverter supports four independent MPPT inputs with DC input currents up to 18 A.
California asked to fine utilities $10 million for rooftop solar obstruction
A formal complaint was filed by the California Solar and Storage Association against electric utilities that are accused of routinely ignoring grid connection application timelines.
France to cut VAT to 5.5% for residential solar under 9 kW from October
France will cut value-added tax (VAT) to 5.5% on residential PV systems up to 9 kW starting in October 2025.
Skyworth launches new residential inverters
The Chinese electronics manufacturer said its new single-phase inverters have a maximum efficiency of 97.9% and a European efficiency rating of 97.2%.
SolaX presents balcony storage system
Chinese manufacturer SolaX Power has unveiled its Balcony X-MS 2000, a lithium-phosphate battery storage system for residential microgeneration supporting up to 2,400 W of solar input.
Spain’s rooftop PV segment up 11% in Q2
Spain’s rooftop PV installations rose 11% in the second quarter after falling 17% in the first three months of the year, but overall rates remain below 2024 levels, according to Unión Española Fotovoltaica (UNEF).
Micoe showcases residential PV water heaters
The Chinese company said its new PV-driven water heaters are combinable with grid electricity to ensure continuous domestic hot water supply. The new products rely on MPPT controllers and a digital control panel featuring programmable temperature settings and timer functions.
