With the new decade, pv magazine brings forth yet another energy storage highlights. Approximately two weeks of work went into sifting through this year’s 22 highlights submissions, conducting research, and preparing them for the jury. Once again, this year’s work was crowned by the moderation of the jury meeting, in which six leading industry experts discussed the technologies and solutions. Differing from previous years, the jurors have selected the top five “Gigawatt” winners, followed by five “Megawatt” winners, and a series of “Finalists” which we are publishing here, leading up to Energy Storage Europe.
Built in partnership with Messe Düsseldorf and Energy Storage Europe, pv magazine’s annual Energy Storage Highlights 2020 special edition is hot off the press. Join us at the Energy Storage Europe trade fair and conference, taking place March 10-12 in Düsseldorf, Germany. Celebrate this year’s top five awardees at our Insight panel session with discussion among our Gigawatt winners and panel of expert jurors.
Introducing Megawatt Winner…
Nilar
Increasing sustainability of battery storage
In recent years, lithium-ion batteries have far overtaken nickel metal hydride (NiMH) batteries. Particular for stationary storage, lithium-ion dominates the market. Nilar, however, has come up with a NiMH solution it believes will provide significant advantages for the residential and C&I markets.
One of these advantages is increased sustainability. With a battery’s limited lifespan and the necessity for replacement, there are both waste and cost concerns. Nilar has developed a methodology which it says will allow its battery’s lifetime to be multiplied.
Nilar’s NiMH utilize a water-based electrolyte that can be regenerated. By filling the battery with oxygen, the same battery’s energy can be restored once it starts to wear out. Nilar expects an initial residential battery application to last for approximately 10 years. After application of the service, the battery could be used for another decade.
How will NiMH technology with the refilling option compare to standard lithium ion technology? “Lithium-ion batteries are common in the energy storage market because the demand for EVs has driven their development,” says Nilar. “We believe that NiMH batteries are more suitable for the energy storage market, since energy density and weight are of less concern.” While the up-front costs for their batteries are higher, their calculations result in a lower total cost of ownership after life extension.
Jury Comments
Mark Higgins: “Kudos to Nilar for developing something that holds the potential to significantly improve the longevity and sustainability of existing battery systems.”
James Frith: “Nilar’s ability to regenerate their nickel metal hydride batteries is an elegant solution to help extend project life, therefore reducing the associated manufacturing emissions. Further to this, the system can be easily recycled, making end-of-life management less of a concern.”
Jurors
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