Fraunhofer ISE tests cesium lead perovskite in perovskite-perovskite-silicon triple junction solar cell
Fabricated via thermal evaporation, the champion perovskite-perovskite-silicon triple-junction solar cell reached an efficiency of around 22% after 110 hours of fixed-voltage operation under ambient conditions without encapsulation.
Cybersecurity as a powerful tool to enable resilient energy storage projects
Compliance with ever-increasing cybersecurity regulations is a challenge for many in the energy storage industry but it creates big opportunities for risk-mitigation. Katherine Hutton and Lars Stephan, from energy storage integrator Fluence, take a closer look at cybersecurity compliance risks and how investors can mitigate revenue losses with a clear strategy.
EV charging shapes PV investment, grid load in community study
Researchers in Spain have simulated an energy community with varying electric-vehicle penetration levels (0%, 50%, and 100%) to analyze system optimization under different regulatory frameworks and EV brands. Charging strategies significantly affected overall performance and outcomes.
Ascent Solar unveils production scale 15.7% CIGS modules for space
US-based Ascent Solar Technologies says its latest 30cm2 Titan solar module has a power density of 1,960 W/kg and is designed for space applications.
Utrecht energizes vehicle-to-grid car sharing service
The Dutch municipality of Utrecht has become the first city in Europe to introduce a vehicle-to-grid (V2G) car-sharing service. It features Renault 5 E-Tech electric cars that run on clean energy and feed power back to grid the during peak-demand times.
China’s SNEC 2025 show highlights PV industry resilience, storage growth
Chinese solar manufacturers showed resilience at the 2025 SNEC PV Power Expo in Shanghai despite a deepening supply glut, as strong demand for energy storage and emerging technologies offset a steep drop in new PV module launches. Tunnel oxide passivated contact (TOPCon) stayed dominant, while back-contact, perovskite, and lithium iron phosphate (LFP) storage solutions gained traction.
Optimizing endless PV-driven heat pump scenarios for costs, self-sufficiency
Researchers have used mixed-integer linear programming-based multi-objective optimization to optimize 30,912 unique scenarios showing heat pumps operating in combination with PV power. The optimization modeling was conducted under day-ahead spot market prices terms.
How organic flow batteries could erase the need for critical-mineral dependency
Vanadium flow and lithium-ion batteries both require materials described as critical by the US Department of Energy (DOE).
Longi unveils 700 W back-contact PV panel with world record silicon solar cell
Chinese solar manufacturer Longi unveiled a new PV module with 25.9% efficiency at the 2025 SNEC trade show this week in Shanghai, produced using both low- and high-temperature passivation techniques.
Novel MPPT technique uses fuzzy logic control with new inputs
Academics have developed a maximum power point tracking (MPPT) algorithm for PV systems that combines incremental conductance with fuzzy logic control. The inputs used are the sum of conductance and incremental conductance and its rate of change. It had an average efficiency of 97.7%.
