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United States

Bringing lithium-sulfur batteries closer to commercialization

Researchers at the University of South Carolina have successfully transitioned their highly-durable lithium-sulfur battery technology from coin to pouch cells and reported competent energy densities.

U.S. scientists develop air-bridge thermophotovoltaic cells with 44% efficiency

U.S. scientists have developed a thermophovoltaic cell that could be paired with inexpensive thermal storage to provide power on demand. The indium gallium arsenide (InGaAs) thermophovoltaic cell absorbs most of the in-band radiation to generate electricity, while serving as a nearly perfect mirror.

The Hydrogen Stream: Nikola to sell 100 fuel-cell hydrogen trucks to Port of LA

Nikola plans to sell 100 hydrogen fuel-cell trucks for logistic operations in California, Volvo has started developing hydrogen combustion trucks, and Airbus has announced plans to launch a study into hydrogen projects in the US state of Georgia.

Policy uncertainty creates ‘gap’ between hydrogen aims and reality, says BNEF

BloombergNEF (BNEF) says in a new study of 1,600 planned hydrogen projects that governments will miss their 2030 hydrogen targets. Analyst Adithya Bhashyam tells pv magazine that most of the announced projects to the end of this decade lack the key conditions for success.

Researchers propose new models for heat pump load forecasting in energy communities

Novel research from Germany and the USA has analyzed the impact of heat pump (HP) integration on the ability of day-ahead load forecasting in energy communities. Using different models, the scientists have also investigated whether HP loads should be forecasted separately from the rest of the household or both together.

California is now a batteries-based rooftop solar market

About 60% of energy customers in California have included battery energy storage with their rooftop solar installations. However, a “sustained downturn” is expected for the market.

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Bladeless wind energy innovation aims to compete with rooftop solar

A compact, “motionless” wind turbine with a magnetic generator designed for large commercial rooftops provides 5 kW of capacity per unit. Aeromine Technologies secured Series A funding for scaling its innovative design.

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US solar prices double European costs amid regulatory challenges

The requirements of measures such as the Uyghur Forced Labor Prevention Act (UFLPA) mean that solar panel prices in the United States can be twice as much as in Europe.

Acciona completes 458 MW solar array in Texas

Acciona Energía has finished building a 458 MW solar farm in Texas – its largest PV project to date.

Enel, Energy Vault build 18 MW/36 MWh of US gravity storage

Energy Vault and Enel have revealed plans to build 18 MW/36 MWh of gravity storage in the United States. They say that the project will be the first large-scale gravity energy storage in a Western country.

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