Italy issues new fire safety rules for PV and storage systems
Italy’s fire service has introduced binding guidelines for PV systems up to 1,500 V, adding rules on storage, spacing, compartmentalization, and maintenance.
Saharan dust events can reduce PV power output in Mediterranean area by up to 50%
New research from Hungary shows that Sarahan dust events can reduce PV power output in five Mediterranean countries by an average of 25-40%. The scientists stressed the need for including real-time dust monitoring and cloud interactions in solar forecasting.
Analysis of 6,276 connectors for rooftop PV systems
Sandia National Labs researchers have created a new dataset on the rates and types of rooftop PV connector failures. Their analysis has shown that tight wire bending radius, extra dirty connectors, and loose nuts are the most common failure causes in 6,276 connectors deployed between 2014 and 2017 across seven U.S. regions.
Aermec launches propane heat pumps for commercial, industrial buildings
The new heat pump systems use propane as the refrigerant and can provide hot water at a temperature of up to 75 C, according to the UK-based manufacturer.
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.
