round-trip efficiency

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September 4, 2026
Tesla was one of the pioneers of the grid-scale battery storage market, but has faced increasing competition in the past few years. In this article we look under the hood of its latest grid-scale BESS product, the Megapack 3. 
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August 26, 2026
In May, US automotive group Ford made the surprise announcement that it was launching a BESS product via new division Ford Energy. In this deep dive article, we look at its product’s specifications and how they compare to other existing solutions.
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July 14, 2026
Huawei FusionSolar’s new Smart String Grid-Forming ESS Platform, LUTERRA, is born from technology breakthroughs designed to drive customer success.
June 8, 2026
To avoid pitfalls that harm BESS investments, developers must sign well-structured contracts, writes Intertek CEA’s Yilin Huang.
May 26, 2026
Solar-plus-storage projects are proliferating across the globe and necessitate a choice between DC and AC coupling. In this piece we look at the differences and pros and cons of each.
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April 9, 2026
We analyse and compare the metrics of the various LFP battery cells of 587Ah and above, from leading providers CATL, Eve Energy, Hithium, Rept Battero, CALB and BYD.
March 31, 2026
Form Energy, Noon Energy and Ore Energy are all commercialising proprietary 100-hour battery technologies for LDES applications, but how do they compare on metrics like cost, energy density and round-trip efficiency? We look at what they have revealed, as well as what they haven’t.
November 4, 2025
Thermal energy storage (TES) startup Rondo Energy has announced its second 100MWh project within a matter of weeks, at a brewery in Portugal.
October 24, 2025
Energy-Storage.news proudly presents our sponsored webinar with Wärtsilä, demystifying the BESS metrics that matter most.
July 11, 2025
The energy regulator in Romania has exempted energy storage resources from fees for charging from the grid.

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