Sunrun teams with Tesla to install solar+storage for Hawaii's self-supply incentive

Billed at $0.19/kWh, the price of the solar and storage installation comes in well under Hawaii's average retail electric prices for residential customers. 

By Peter Maloney • May 18, 2016

California PUC proposes storage buy to deal with Aliso Canyon gas shortage

The CPUC released a draft decision last week that would require Southern California Edison to hold an expedited storage procurement process to help alleviate the electrical outage risk posed by the nation's worst-ever methane leak.

By Gavin Bade • May 17, 2016

Explore the Trendline➔

Energy Storage

The proliferation of energy storage in everything from utility-scale batteries to electric vehicles is a driving force in the transition to a cleaner, more distributed power system. This trendline includes the best Utility Dive reporting on this dynamic sector.

By Utility Dive staff

Energy storage bills fail in Hawaii, but could re-appear in next legislative session

Support for storage is widespread in Hawaii, but the state's financial situation makes new incentive funding a challenge.

By Peter Maloney • May 17, 2016

Yieldco problems: systemic or a speed bump?

With SunEdison's bankruptcy, yieldco shares have taken a hit, raising questions about the viability of the investment vehicle.

By Peter Maloney • May 17, 2016

What SolarCity's new portfolio of grid services can do for utilities

The dominant residential solar installer is moving beyond the rooftop in a bid to become an essential partner for utilities.

By Herman K. Trabish • May 16, 2016

Tesla supplier ramps up production for grid edge products as US demand grows

Austrian company Fronius International GmbH is privately held and doesn't release earnings, but revenue at its solar division grew 80% last year.

By Robert Walton • May 12, 2016

French company takes 80% stake in battery developer Green Charge Networks

French energy firm Engie will not disclose the amount of its stake in Green Charge Networks, but the deal will grow the company's reputation in the energy storage space for C&I customers.  

By Peter Maloney • May 11, 2016

An embarrassment of riches? Maui shows why renewables curtailment isn't all bad

While it's something to minimize, curtailment is crucial to the functioning of MECO's grid today, and the goal of reaching 100% renewables by 2045.

By Gavin Bade • May 11, 2016

US solar company inks deal with China to build 1,000 MW concentrating solar power plant

SolarReserve, who developed the Crescent Dunes CSP project in Nevada, just teamed up with China's Shenhua Group to build 1,000 MW of solar power. 

By Herman K. Trabish • May 11, 2016

French oil giant Total to acquire battery storage company Saft

The oil and gas company looks to deepen its clean tech portfolio with the friendly acquisition of Saft. 

By Peter Maloney • May 10, 2016

Fuel cells are a good partner for microgrids, but costs limit deployment

But as more microgrids are deployed, fuel cell costs could fall. 

By Peter Maloney • May 10, 2016

Construction manufacturer Caterpillar enters microgrid and storage market

Caterpillar has launched microgrid suite that combines solar, storage and Caterpillar generators.

By Peter Maloney • May 9, 2016

ComEd jumps on the demand charge train with new Illinois proposal

Residential demand charges have been most popular in the Southwest, but the Chicago-based utility features them prominently in a new legislative push.

By Peter Maloney • May 9, 2016

Tesla reports 25 MWh of storage capacity delivered in Q1 2016

A shareholder letter highlights demand for the Powerwall residential storage device and acknowledges delays in some deliveries.

By Peter Maloney • May 6, 2016

Updated: Exelon says 2 nuke plants on the line in sweeping new Illinois energy bill

The Next Generation Energy Plan, announced yesterday, would touch virtually every aspect of the state's power industry. Without it, Exelon plans to retire two challenged nuclear plants.

By Peter Maloney • May 6, 2016

Hawaii lawmakers to reconcile competing proposals for renewables, storage incentives

These proposals aim to ensure low-income families could purchase distributed generation systems and a tax break for energy storage for up to 25% of the costs. 

By Herman K. Trabish • May 5, 2016

CA companies Verengo, Swell companies team up for residential solar-plus-storage

Verengo Solar and Swell Energy is the latest partnership aiming to penetrate the market for residential energy storage.

By Peter Maloney • May 5, 2016

SolarCity unveils new software services for utilities, grid operators

The solar developer wants to help utilities deploy fully-dispatchable renewable resources and control DERs on their systems. 

By Gavin Bade, Herman Trabish • May 5, 2016

DOE's new $25M solar fund seeks development of distributed energy grid solutions

The ENERGISE program, part of the Department of Energy's SunShot initiative, seeks to fund grid technologies to manage high penetrations of distributed energy on utility systems.

By Herman K. Trabish • May 4, 2016

ACC approves TEP plans for renewables, storage, but not utility-owned solar

Arizona regulators approved an expansion in renewable energy investments and two storage pilot projects, but deferred a decision on utility-owned rooftop and community solar projects to TEP's general rate case.

By Gavin Bade • May 4, 2016

Puerto Rico energy storage project tests load shifting capabilities of hybrid batteries

An energy storage project in Puerto Rico will test the ability of hybrid batteries to shift load in response to the territory's storage mandate. 

By Peter Maloney • May 3, 2016

Oklahoma utility proposes demand charges to cover distributed energy costs

Oklahoma Gas & Electric is seeking approval to change its rate structure in order to adapt to accommodate distributed resources.

By Peter Maloney • May 3, 2016

Iowa electric co-op looks to buy RECs to go '100% carbon-free'

The Raccoon Valley Electric Cooperative in Iowa plans to reduce its carbon footprint to zero.

By Peter Maloney • April 29, 2016

Aquion installs storage for microgrid at California winery and farm

Aquion Energy is supplying its aqueous hybrid ion batteries for the project, which will use Ideal Power's 30-kW multi-port power conversion system to help make the California winery and farm more self-sufficient. 

By Peter Maloney • April 29, 2016

Beyond pilots: Duke Energy looks to install storage in regulated market

The utility has previously completed pilots but now says the time is right for a commercial storage facility operating in a regulated market.

By Robert Walton • April 28, 2016