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Ensuring rooftop solar photovoltaics are deployed equitably requires understanding who installs, where, and when. Through assessment of satellite imagery data, research offers a glimpse into solar rooftop photovoltaics deployment inequity in non-residential buildings in the US, revealing challenges and opportunities ahead for a just energy transition.

Lithium battery performance hinges significantly on the solvation structure of the electrolyte and the resulting interphase. Here the authors introduce a fluorinated ether with minimal lithium-ion coordination and enhanced electrochemical stability, thus improving both cyclability and calendar life.

Ultralightweight perovskite solar cells that achieve a specific power of up to 44 W g^–1 and good stability are developed through engineering of the photoactive layer and substrate. These solar cells can be integrated into a drone to enable energy-autonomous flight.

A new study of low-carbon value chains of basic materials (steel and chemicals) demonstrates how regional differences in renewable energy prices may lead to a global relocation of energy-intensive production.

Aqueous batteries have drawbacks related to their low energy densities. Now, highly concentrated hetero-halogen electrolytes can be used to enable fast multielectron transfer, leading to cost-effective, reversible and high-energy-density aqueous batteries.

The shift towards low-carbon heating technologies and associated infrastructure often disrupts citizens’ lives. Research now demonstrates how the socio-psychological context may influence the circumstances under which citizens are willing to accept heating transitions and related construction work, and those where reactance and rejection is to be expected.

Aqueous batteries, such as iodide/iodate-based ones, confront challenges due to their low energy densities. Here the authors utilize hetero-halogen electrolytes to enable fast multielectron transfer, yielding high-energy-density aqueous batteries.

A new study considers how disruption to energy systems is experienced and takes on meaning. On the basis of workshop data, the study finds that public views of heat decarbonization in the United Kingdom are shaped by relationships to family, cultural expectations, housing and financial position.

Wind farms would benefit from optimization of their design and operation. Harrison-Atlas et al. report an artificial intelligence-aided optimization approach that shows the potential of wake steering strategies to minimize land requirements and costs.

A new study assesses global small-scale nuclear power reactor deployment suitability, finding that reactors in the 1–50 MWe range could serve 70.9% of the population living in regions without night-time light. However, governance and economic issues eliminate 95% of the potential market.

Organic solar modules suffer from poor electrical contacts. Lu et al. embed the silver electrode into a polymer matrix and add chromium to enhance its electrical contact, achieving improved stability and a 14.04% efficiency on flexible modules with an active area of 41 cm².

The activation barriers of interfacial energy conversion reactions are key to controlling the efficiency of electrolysers. Work on the structural dynamics of water during charge transfer at electrified solid/liquid interfaces now brings greater understanding of the components of the activation barriers for water dissociation and hydrogen evolution.

Demonstration of high performance, upscaling and integration of ultra-lightweight perovskite solar cells are still rare. Hailegnaw et al. develop 2D perovskite solar cells based on methylbenzyl ammonium iodide with improved specific power and stability, showing scalability and integration in drones.

A new study finds that strategically integrating floating solar panels on reservoirs could substitute 20–100% of Africa’s planned hydropower by 2050. For the Zambezi watercourse, this approach generates a more stable electricity supply compared with hydro-dominated development.

Global climate models are challenging to integrate in energy system models because their output data resolution is too coarse. Buster et al. generate high-resolution meteorological data with climate change impacts from global climate model datasets using generative machine learning.

One of the major challenges in realizing lithium (Li)-metal batteries is the instability of Li metal in the electrolyte. Now, a study unveils the significant role of lithium oxide in protecting Li metal, thereby contributing to stable battery operation.