Flow Batteries

Eos Raises $15M for Zinc-Air Grid Batteries

Eos Raises $15M for Zinc-Air Grid Batteries

Jeff St. John: May 20, 2013

A Series B round with investors including Fisher Brothers and NRG Energy

Xtreme Power Catches Up With the Big Players in Grid Storage

Xtreme Power Catches Up With the Big Players in Grid Storage

Jeff St. John: February 22, 2013

The startup raises $5.7 million and brings its portfolio of storage to 77 megawatts.

Energy Storage: Crossing the Chasm to Commercialization

Energy Storage: Crossing the Chasm to Commercialization

Zach Pollock: February 4, 2013

Clean Energy Connections and GTM broadcast a discussion on energy storage.

Primus Lands DOD Contract for Energy Storage at Marine Base Microgrid

Primus Lands DOD Contract for Energy Storage at Marine Base Microgrid

Eric Wesoff: January 23, 2013

The military has a set of problems that microgrids and low-cost large-scale energy storage might solve.

Xtreme Power Gets $10M Charge-Up for Grid Batteries

Xtreme Power Gets $10M Charge-Up for Grid Batteries

Jeff St. John: June 5, 2012

The grid-scale battery startup raises a $10 million Series D round in debt and options from existing investors.

Slideshow: DOE Energy Storage Project Portfolio Funded by ARRA

Slideshow: DOE Energy Storage Project Portfolio Funded by ARRA

Eric Wesoff: June 4, 2012

A presentation from the DOE’s Energy Storage Research Program Manager, Imre Gyuk

Liquid Air for Utility-Scale Energy Storage?

Liquid Air for Utility-Scale Energy Storage?

Jeff St. John: March 5, 2012

U.K.-based startup Highview Power Storage uses super-cooled air to store energy at potentially massive scale.

Chinese Flow Batteries: Prudent Energy Lands $29.5M

Chinese Flow Batteries: Prudent Energy Lands $29.5M

Jeff St. John: October 12, 2011

The vanadium redox flow battery company lands a Series D round to boost production for markets in China and around the globe.

Update: 1 GW of Utility-Scale Storage From Rubenius

Update: 1 GW of Utility-Scale Storage From Rubenius

Eric Wesoff: August 29, 2011

Ambitious and massive battery deployment for grid-scale storage still in planning stages.

Assembly Member Nancy Skinner, Author of Pioneering Energy Storage Law, at ESA

Assembly Member Nancy Skinner, Author of Pioneering Energy Storage Law, at ESA

Eric Wesoff: June 7, 2011

Skinner kicks off the the three-day energy storage event.

Primus Gets $11M From KP and Others for Energy Storage

Primus Gets $11M From KP and Others for Energy Storage

Eric Wesoff: May 31, 2011

VC investors continue to look for a disruptive energy storage model.

Stealthy Small-Scale Storage Startups

Stealthy Small-Scale Storage Startups

Eric Wesoff: May 25, 2011

Stealthy Powergetics and Solar Storage are going after energy storage behind the meter.

Primus Power: Getting Flow Batteries to Market

Primus Power: Getting Flow Batteries to Market

Eric Wesoff: May 19, 2011

What’s holding electrochemical energy storage back from widespread, utility-scale deployment?

Can a Country Get 90 Percent of Its Power From Renewables?

Can a Country Get 90 Percent of Its Power From Renewables?

Michael Kanellos: April 1, 2011

Academically speaking, that is.

Grid-Scale Energy Storage: What are the Real Costs and Who Pays For it?

Grid-Scale Energy Storage: What are the Real Costs and Who Pays For it?

Eric Wesoff: March 31, 2011

The industry is figuring out the rules and benefits for energy storage as it goes along.