India posts record 4.9 GW of rooftop solar additions in first nine months of 2025
India installed 4.9 GW of rooftop solar capacity in the first nine months of 2025, including 2.1 GW in the third quarter, with cumulative capacity reaching 18.6 GW, according to Mercom India.
Indian state sets record low battery storage tariff
Rajasthan Rajya Vidyut Utpadan Nigam Ltd. (RRVUNL) has concluded its tender for a 500 MW/2,000 MWh standalone battery energy storage system (BESS) at a price of INR 285,000 ($3,195)/MW per month, the nation’s lowest to date for a four-hour, single-cycle system.
China dominates global polysilicon capacity, says Bernreuter Research
Bernreuter Research says nine of the world’s ten largest polysilicon manufacturers are based in China, with Tongwei, GCL Technology, Daqo New Energy and Xinte Energy holding a combined 65 percent share of global output in 2024.
Perovskite solar cell based on Mxene achieves record-breaking efficiency of 25.75%
A research team in Spain has built what it claims to be the world’s most efficient perovskite solar cell using MXenes or any other type of 2D-materials. The device relies on a Mxene interlayer that suppresses non-radiative recombination and improved charge extraction at the interface between the perovskite absorber and the electron transport layer.
Indian utility seeks land for new grid-connected solar project
NLC India Ltd. says it has issued a tender for contractors to secure and develop 1,850 acres across multiple states for a solar power project connected to India’s inter-state transmission system (ISTS) on behalf of NLC India Renewables Ltd (NIRL).
When solar meets next-gen nuclear
Scientists in China have proposed a novel scheduling framework for microgrids based on hybrid PV and a small modular nuclear reactors. The framework uses multi-objective distributionally robust optimization with a real-time reinforcement learning mechanism and is reportedly able to reduce operational costs by 18.7%.
Sharp offers space-qualified solar cells, plans perovskite-silicon tandem production
The Japanese technology company is offering three types of space-grade compound solar cell designs for satellites and spacecraft.
Japan’s PV module shipments hit 1.28 GW as residential demand accelerates
Japan’s solar module shipments reached 1.28 GW in the first quarter of fiscal 2025, supported by strong residential demand and ongoing dominance by foreign manufacturers, with domestic production limited to just 5% of total output, according to the Japan Photovoltaic Energy Association (JPEA).
Massive 20 GWh sodium-ion battery manufacturing plant announced in China
After last year’s slowdown, investment in China’s sodium-ion battery sector is rebounding in 2025, and one of the biggest projects yet has now entered the development pipeline.
Wind-PV-powered heat pump for low-energy residential buildings
Scientists in China have developed an optimized energy management strategy for a wind-PV hybrid heat pump system that uses both thermal and electric energy storage. Using different seasonal interaction management strategies, they simulated four operational cases.
