California regulators approve 2nd SoCal Ed pilot to test DER over gas

The state's Public Utilities Commission authorized Southern California Edison to recover the costs of 19 contracts for preferred resources, including solar+storage.

By Robert Walton • July 16, 2018

New investor-backed campaign targets a trillion dollars for US renewables

The right policies could bring significant investment to renewables by 2030, but first the White House must see such clean energy resources as the right politics for Trump country.

By Herman K. Trabish • July 13, 2018

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

Duke boosts solar in North Carolina, but storage addition brings controversy

The utility launched two programs July 10 that are expected to significantly increase solar power in the state — an RFP for 680 MW of renewable resources and a $62 million solar rebate program.

By Peter Maloney • July 11, 2018

New York's energy storage target could end up at 3 GW by 2030

The state's target could go beyond the 1,500 MW goal, but the roadmap outlined key regulatory recommendations necessary to foster investment and deployment.

By Peter Maloney • July 10, 2018

Arizona regulator seeks efficient path for 80% clean energy rule

Commissioner Andy Tobin proposed July 5 to merge his Arizona Energy Modernization Plan into the state's existing Renewable Energy Standard and Tariff framework.

By Robert Walton • July 7, 2018

Taming the duck: Arizona Public Service seeks 106 MW storage for solar plants

APS is looking for batteries to soak up midday sun and help alleviate its duck curve problem.

By Peter Maloney • July 5, 2018

PG&E to replace 3 gas plants with world's biggest battery projects

The projects would eliminate the need to keep three Calpine plants running as reliability must-run resources and shore up congestion issues.

By Peter Maloney • July 3, 2018

Nevada regulators approve NV Energy's first EV infrastructure program

NV Energy partnered with the state on a joint initiative to increase access to charging infrastructure between major urban centers and to mitigate customers' range anxiety.

By Robert Walton • July 3, 2018

Can California avert new gas plants with distributed resources? SoCal Ed offers a test case

Regulators will soon decide between two paths regarding SCE's proposed pilot — one where DER remains secondary to natural gas and another where they move to transform the distribution system.

By Herman K. Trabish • June 28, 2018

Dynamic Grid Systems will rebuild a small Maine utility from the ground up

Isle au Haut, Maine, has less than 150 electric subscribers but faces the same challenges as larger utilities when it comes to integrating stable, renewable energy.

By Robert Walton • June 27, 2018

Wärtsilä, Hyundai to partner on second-life EV batteries for storage

According to the companies, there will be 29 GWh of second-life EV batteries available by 2025 — almost triple the size of today's stationary storage market.

By Robert Walton • June 27, 2018

California ISO's long road ahead to turn storage into a transmission asset

Responses to CAISO's "storage as a transmission asset" proposal show there is more work to be done, as developers and investor-owned utilities support opposing cost-recovery options.

By Peter Maloney • June 26, 2018

New York unveils roadmap to 1.5 GW storage by 2025

The state has considerations underway to set a more ambitious long-term energy storage target for 2030.

By Iulia Gheorghiu • June 21, 2018

Daimler facility stores batteries for EVs while providing storage to grid

Daimler and Mercedes-Benz Energy are providing grid service from an energy storage facility in a former German coal plant.

By Peter Maloney • June 21, 2018

Colorado regulators boost Xcel efficiency target 25%

Xcel subsidiary Public Service Company of Colorado asked the PUC to keep its goal steady at 400 GWh of annual reductions, but regulators are convinced the utility can do more.

By Robert Walton • June 21, 2018

Republicans tout tax law success in hearing on energy sector impacts

While Republican witnesses cited increased wages, capital expenditures and company growth from the recent changes to the tax code, the lone Democrat witness said the bulk of the benefits are bypassing the middle class.

By Peter Maloney • June 21, 2018

DOE: Puerto Rico has plenty of options for new generation

A new report on options for rebuilding the island's grid recommends considering a wide range of renewables and alternative fuels, an expansion of liquefied natural gas imports, microgrids and energy storage.

By Robert Walton • June 20, 2018

In Massachusetts, capacity ownership of distributed resources could determine fate of storage

Current debates over ownership and control of capacity rights associated with solar and energy storage projects could have a big impact on the trajectory of the technologies in the state.

By Peter Maloney • June 20, 2018

World on track for 50% renewables by 2050, says Bloomberg energy outlook

Wind and solar will provide almost 50% of the world's electricity, with hydro, nuclear and other renewables taking total zero-carbon electricity up to 71%.

By Robert Walton • June 19, 2018

US, EU research further integrates solar and storage

An energy-storing solar cell? Medium-voltage silicon carbide inverters? Research in the United States and Europe could make harnessing solar energy more efficient and cost effective.

By Robert Walton • June 19, 2018

5 things utilities should consider for energy storage

Utilities navigating energy storage integration should take into account the flexibility and speed of modular programs when comparing storage to gas peaker plants, Axiom Exergy's John Lerch writes.

By John Lerch • June 19, 2018

Vistra plans largest energy storage project in Texas

The 10 MW, 42 MWh lithium-ion battery would be located at the 200 MW Upton 2 solar plant.

By Robert Walton • June 19, 2018

Is New Hampshire on the verge of battery energy storage history?

A Liberty Utilities-stakeholder settlement could put 1,000 behind-the-meter batteries in place and provide a model for the rest of the country.

By Herman K. Trabish • June 19, 2018

100% renewable energy omnibus clears Massachusetts Senate

The package of energy bills would also remove net metering caps, increase the storage mandate and void demand charges approved earlier this year for Eversource. 

By Iulia Gheorghiu • June 18, 2018

Scientists say new material can triple lithium-ion battery energy density

The research strategy could be applied to other high-energy conversion materials, and future studies may use the approach to improve other battery systems.

By Peter Maloney • June 15, 2018