Technology

The transparent four-terminal perovskite solar cell employs an ion-modulated spiro-MeOTAD hole transport layer, which passivates interfacial defects, enhances carrier dynamics, and allows for a tunable work function in wide-bandgap perovskites. When integrated into mechanically stacked 4T tandems with an n-TOPCon cell, the device achieved an overall efficiency of 28.4–30.2%, along with improved open-circuit voltage and fill factor.

SolarPower Europe has released new technical due diligence guidelines for utility-scale solar-plus-storage projects, covering risk, engineering and lifecycle standards for co-located PV and battery systems.

The Chinese manufacturer claims the new efficiency result sets a world record for industrial-scale TOPCon solar cells on M10-size wafers. The achievement was verified by an undisclosed independent third-party organization in China.

IEEFA states that bridging the INR 10.3 lakh crore investment gap over the next five years will require moving beyond traditional subsidy-led approaches toward structural risk-sharing mechanisms that lower the cost of credit and attract private capital in the electric mobility sector.

A new report by IEEFA and Ember finds that India’s electricity transition is unfolding differently across states, shaped by variations in resource endowments, development pathways, and institutional capacities. While some states are already leading in renewable energy deployment and grid readiness, others are building momentum, presenting significant opportunities for accelerated progress through targeted, state-specific policy interventions.

The TEXMiN Foundation, IIT (ISM) Dhanbad, has signed an MoU with GIREDMET State Research and Design Institute of Rare Metal Industry, Russia, to collaborate on rare earth processing, critical minerals, advanced materials, and translational research across the mining value chain. The partnership will also focus on hydrometallurgical recycling technologies for lithium-ion batteries to recover valuable metals.

Under the terms of the deal, Germany’s NexWafe will supply its ultrathin solar wafers to Talon PV’s planned 4.8 GW TOPCon solar cell manufacturing plant in Texas. Initial qualification work will take place at a pilot production line at Fraunhofer ISE’s Photovoltaic Technology Evaluation Center.

Scientists in Hungary found that ground-mounted PV modules at an intermediate elevation of 1.1 m achieve the highest efficiency and power output due to improved airflow and reduced cell temperature. Their study also estimated a levelized cost of electricity of $0.0843/kWh and 577.78 kg CO₂ mitigation over 25 years, while noting results are specific to concrete surfaces.

The Global Energy Alliance for People and Planet has launched the India Grids of the Future Accelerator platform to modernize power distribution, integrate renewable energy and storage, and prepare India’s grids for rapid demand growth.

The International Solar Alliance (ISA) convened a high-level session at the India AI Impact Summit 2026 to advance global dialogue on the transformative role of Artificial Intelligence (AI) in the clean energy transition.