French renewables power grid pilot shows limits of batteries in Europe *Battery storage still too expensive in most of Europe. NICE, France, July 5- A major pilot project by Europe's largest power network operator to integrate power from rooftop solar panels into the grid has shown that battery storage of renewable energy is not yet economically viable in Europe. The 30 million euro "Nice Grid" pilot is one of the biggest in a European...
| By: Geert De Clercq
Dorsey: Costolo's exit not performance related Outgoing Twitter CEO Dick Costolo and interim CEO Jack Dorsey spoke about the succession in a conference call, reports CNBC's Josh Lipton and Robert Peck, Suntrust Robinson Humphrey.