Batteries

Wind and solar PV now deliver two-thirds of new electricity generating capacity in the US, as cost of clean tech falls across the board

There are now 35 standalone grid-scale projects and at least 1,500 residential energy storage units in operation, industry analysis finds

New study suggests cost of adding solar to the UK power system - including back-up power for when the sun does not shine - stands at just £1.30 per megawatt hour, while solar-plus-storage systems are delivering net benefits

Lithium ion battery firm becomes first to use Nissan's technology in own products

Oxford-based tech firm now aims to bring its ultra-fast charge supercapacitors into production

Instead of Hinkley being the start of a "new wave" of British nuclear stations, it should mark the end of a long and sorry saga

The National Grid battery tender in August heralds a new era of energy storage, argues Labour's Alan Whitehead

SmartestEnergy report reveals key challenges remain for a nascent battery industry, despite encouraging energy storage auction

UK-based firm reported $1.4bn revenues last year but things could have been very different, says head of investor relations Jose Cano

Brian Paes-Braga, 28-year-old CEO of resource exploration firm Lithium X, believes lithium batteries can help wean the world off fossil fuels