The business models and technologies underpinning the development of stationary energy storage markets are evolving rapidly. Dr. Kai-Philipp Kairies, Jan Figgener and David Haberschusz of RWTH Aachen University look at some of the key trends driving the sector forwards, in a paper which first appeared in PV Tech Power’s Energy Storage Special Report 2019.

Energy-Storage.news editor Andy Colthorpe shares his top takeaways from last week’s Solar Power International convention, incorporating Energy Storage International and hosted this year at the North American Smart Energy Week in Utah.

The huge upsurge in lithium-ion battery deployment expected over the next two decades poses a particular problem: what to do with cells that have reached the end of their useful life. Stefan Hogg investigates how lithium recycling will come into its own to handle spent batteries

We’ve arrived at Day One of Smart Energy Week – hosting Solar Power International and Energy Storage International in Utah. Here are some of my observations: both on and ‘off’ the record.

A new white paper from Wärtsilä Energy shows that being able to integrate and then optimise all of these different assets is the key to ensuring that your project – and your investment – is going to provide the maximum benefit, longest possible lifetime in the field – and the best business case. Risto Paldanius, Director of Business Development, Energy Storage and Integration at Wärtsilä told us a bit more about what optimization really means in today’s energy market.

Solarwatt shows off new ‘training and explaining’ app for installers of the company’s modular battery energy storage systems.

Despite the huge strides energy storage has made, significant hurdles remain before the technology in its many guises can be claimed to have fulfilled its massive potential. E-S.n editor Andy Colthorpe assesses the key successes and ongoing challenges for this indispensable part of the future power system.

“With no large-scale batteries participating in the wholesale market in New York, the first day we turned the battery on it was exciting to see if all our internal models were correct in how the battery would behave,” KCE’s COO Dan Fitzgerald told us.

California’s success in embracing renewable energy technologies, particularly solar, has brought with it challenges around reliability of supply to consumers. Janice Lin and Jack Chang of Strategen explore how the Golden State is pioneering the deployment of energy storage as it pursues its goal of complete energy decarbonisation by 2045.

Gone are Europe’s weekly FCR auctions, replaced by daily auctions in a move designed to create greater flexibility and improve international co-operation in these markets in Europe, writes Jean-Paul Harreman of EnAppSys.