US renewable energy developer SunEdison is planning to power rural electrification and micro-grid projects in India with vanadium flow batteries, announcing that it plans to purchase 100 megawatt hours-plus from Imergy Power Systems.
According to SunEdison’s website, the move ties in with the company's aim to help some of the 1.5 billion people around the world who lack basic access to electricity, starting by bringing solar electricity to 54 villages in India with a combined population of around 7,800 people.
Micro-grids with battery storage will be paired with 241kW PV arrays, with the company apparently pledging to transfer operation of the micro-grids to the local population within five years of their going online.
India seems like an appropriate place for SunEdison to undertake this mission. Dr Rahul Walawalkar of the India Energy Storage Alliance, blogging for PV Tech's sister site, PV Tech Storage, in November last year, wrote about the 100 million or so households in India – representing around 400 million people in a total population of 1.2 billion – that lack even basic access to electricity.
A full version of this article, including insight into the technology used in Imergy's batteries, can be read on PV Tech Storage.