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Japan team evaluates battery-assisted low-cost hydrogen production from solar energy

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The results from this study suggested a cost of hydrogen as low as ¥17 to ¥27/Nm 3 (US$0.16 - $0.25) using a combination of technologies and the achievement of ambitious individual cost targets for batteries, PV, and electrolyzers. The team then evaluated the economic feasibility of the system. Credit: NIMS.

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Swiss team develops effective and low-cost solar water-splitting device; 14.2% solar-to-hydrogen efficiency

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The prototype system is made up of three interconnected, new-generation, crystalline silicon solar cells attached to an electrolysis system that does not rely on rare metals. crystalline Silicon (c-Si) solar cells show high solar-to-electricity efficiencies, and have demonstrated stabilities in excess of 25 years.

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New long-duration, extended capacity Na-Al battery design for grid storage

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The new battery design could help ease integration of renewable energy into the electrical grid at lower cost, using Earth-abundant metals, according to a study just published in Energy Storage Materials. h is achieved with an estimated raw active materials cost of $7.02 mAh cm −2 , a discharge duration of 28.2 Weller et al.

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Utility solar dethrones coal as the cheapest power source in Asia

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Photo: China News Service Renewable energy costs in Asia last year were 13% cheaper than coal and are expected to be 32% cheaper by 2030, according to a new study. China leads the pack with a 40-70% cost reduction in utility-scale solar, onshore wind, and offshore wind compared to other Asia Pacific markets.

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Harvard team demonstrates new metal-free organic–inorganic aqueous flow battery; potential breakthrough for low-cost grid-scale storage

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As the fraction of electricity generation from intermittent renewable sources—such as solar or wind—grows, the ability to store large amounts of electrical energy is of increasing importance. Solid-electrode batteries maintain discharge at peak power for far too short a time to fully regulate wind or solar power output.

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Heliostat Consortium announces 7 projects to receive combined $3.5M in funding; DOE launches Heliostat Prize

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The US Department of Energy’s (DOE’s) National Renewable Energy Laboratory (NREL) and Sandia National Laboratories, co-leads of the Heliostat Consortium , announced seven awardees from a request for proposals (RFP) aimed at achieving DOE’s goals for heliostat cost reduction, sustained multifaceted innovation, and improved solar field performance.

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IRENA sees renewable hydrogen at least cost-possible within decade

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Hydrogen produced with renewable electricity could compete on costs with fossil fuel alternatives by 2030, according to a new report from the International Renewable Energy Agency (IRENA). A combination of falling costs for solar and wind power, improved performance as well as economies of scale for electrolyzers could make it possible.

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