World’s fastest supercomputers probing future of sodium-ion batteries
Japanese researchers used supercomputer simulations to reveal how sodium ions form clusters and move within hard carbon anodes, identifying nanopore sizes and transition regions that control diffusion and rate performance in sodium-ion batteries. Their findings offer design guidelines for optimizing hard-carbon anodes to improve energy density, cycling, and commercialization prospects.
Can sodium-ion beat Li-ion in portable power? Bluetti Pioneer Na gives it a try
The world of batteries needs alternative chemistries to skirt weaknesses with lithium-ion. Sodium-ion is a big hope, and in portable power, Bluetti’s new product shows promise, and limitations.
Longi builds 27.25%-efficient back-contact solar cells with high-resistivity wafers
High-resistivity silicon wafers offer superior efficiency potential but are highly sensitive to edge recombination and mechanical damage, limiting their commercial use compared to more robust standard wafers. Researchers from Longi and Sun Yat-sen University demonstrated that integrating in-situ edge passivation unlocks this potential, significantly boosting back-contact solar cell fill factor and efficiency.
Private 660 MWh solar-storage project closes financing in South Africa
Naos‑1 is described as South Africa’s biggest private utility‑scale solar and battery storage project, designed to wheel power to industrial customers.
Germany awards 2.32 GW in large-scale PV tender
Germany’s latest tender for large-scale PV project concluded with an average final price of €0.0500 ($0.0593)/kWh. The procurement exercise was largely oversubscribed.
Hinen launches 15 kW three-phase hybrid inverter
The Chinese manufacturer said its 15 kW three-phase low-voltage hybrid inverter is paired with the stackable BP5000 5 kWh battery supporting up to 120 kWh. It features three MPPTs, 150% oversized PV input, and smart load management for optimized self-consumption.
Philippines to auction 25 GW of renewables by 2035
The Philippines has unveiled plans for its next four green energy auctions, one of which will focus on rooftop solar and solar-plus-storage in selected areas of the country. Another forthcoming auction will concentrate on solar on canals, agrisolar and solar on stilts over fish ponds.
The impact of azimuth angles on PV power production in Saudi Arabia
Researchers in Saudi Arabia conducted a year-long simulation of fixed-tilt PV panels at different azimuth angles, finding that south-facing panels (180°) maximize energy production, while up to 45° eastward shifts cause minimal losses.
Polysilicon transactions remain subdued amid buyer hesitancy
In a new weekly update for pv magazine, OPIS, a Dow Jones company, provides a quick look at the main price trends in the global PV industry.
India installs record 36.6 GW of solar in 2025
India added 36.6 GW of solar capacity in 2025, up 43% from the previous year, with large-scale projects accounting for 81% of installations, according to Mercom India.
