You don’t have to go far inside the headquarters of German battery storage company Younicos, or even its website for that matter, to find out what it is about. “Let the fossils rest in peace,” the logo says. Another sign at the company\’s technology center east of Berlin proclaims: “You are now leaving the CO2-producing sector of the world.”

This sign is designed to mimic those which adorned the checkpoints that separated the various sectors of east and west Berlin before the wall was torn down. Younicos believes it has a technology that is equally disruptive, and can break down one of the last barriers to 100 percent renewable energy: the need to run fossil-fuel generation to control the “frequency” of the grid, and the other system services such as voltage control.

The company, based in Berlin Adlershof on the eastern outskirts of the capital, is developing ten 1-megawatt battery parks, using battery systems that it says can stabilize the grid faster, cheaper and with greater precision that conventional generation.

via The Battery Storage System That Could Close Down Coal Power : Greentech Media.