The cost of lithium-ion batteries for energy storage declined 65% in five years between 2010 and 2015, while battery storage’s use for electricity could hit 250GW by 2030, from just 1GW today, according to the International Renewable Energy Agency (IRENA).

A UK energy demand response start-up using machine learning and artificial intelligence to manage a portfolio of storage assets and provide real-time energy reserves to the grid is set to launch within weeks.

Energy storage should be properly valued and supported at federal level in the United States, according to a government document analysing and evaluating energy policy released by officials of the outgoing Obama administration.

SPONSORED: The integration of smart microgrids with existing power infrastructure and renewable generation offers myriad opportunities, as power systems developer Nidec explains.

Tesla and Panasonic’s Gigafactory in the Nevada desert has now started making high performance cylindrical battery cells of the type used in its stationary storage and forthcoming Model 3.

Geothermal power and renewable energy developer Ormat Technologies has signalled its intent to join demand response and energy storage markets with the purchase of Viridity Energy.

Every year sees energy storage build on the success of the preceding one, it seems, and this year we were able to carry insights and opinions from some of the best placed participants and observers. Here’s our picks for the content most representative of the year it’s been, as well as the 10 most read news stories on the site.

The cost of energy storage technologies is set to reduce significantly over the next five years driven by economies of scale and improvements in both technology and standardisation, according to a new report from financial advisory and asset management firm Lazard.

Australian power firm Genex has completed a study showing it is technically feasible to connect a pumped hydro storage facility with its 50MW(ac) Kidston Solar Project in North Queensland, Australia.

Four makers of lithium-ion batteries have been sanctioned by the European Commission for anti-competitive practises, with three incurring fines totalling €166 million (US$176 million) after colluding to “avoid aggressive competition”.