ENGIE New Ventures increases investment in 2nd-life battery company Connected Energy ENGIE New Ventures, the corporate venture fund of ENGIE, is participating in a new round of investment to further the development of Connected Energy. Based in the United Kingdom, Connected Energy uses end-of-life EV batteries to create energy storage systems. These combine as many batteries as are needed for tailor-made solutions with capacity ranging from less than 100 kilowatt hours up to 15 megawatt hours or more. Connected Energy’s E-STOR, a stationary energy storage technology that extends the life of electric vehicle batteries by 5-10 years, is deployed whenever flexible, modular and short or longer-term electricity storage systems are needed.