Colorado integrates storage into utility planning process

Gov. Hickenlooper signed a bill Friday directing the state's Public Utilities Commission to develop procurement rules to enable investor-owned utilities to acquire energy storage systems.

By Robert Walton • June 5, 2018

Duke agrees to cut North Carolina grid modernization plan by $5.3B

The utility will deploy at least 300 MW of energy storage projects on its system in North Carolina by May 2026, as part of a deal reached with environmental groups.

By Robert Walton • June 4, 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

Will batteries do for wind what they're doing for solar?

Experts say wind-plus-storage could become viable with longer-duration batteries. 

By Herman K. Trabish • May 31, 2018

Blink Charging unveils new EV fast-charging station

The company wins Underwriters Laboratories approval for a new station meant to cut charging time by about two-thirds.

By Peter Maloney • May 31, 2018

Salt River Project launches first standalone storage project

SRP is buying power from a new 10 MW battery system by an AES/Siemens venture, as it works to increase the reliability of its system and offset renewable energy installations.

By Iulia Gheorghiu • May 30, 2018

N.J. sets 'aggressive' 2 GW storage target by 2030

Part of a broader recently-enacted law, the policy makes New Jersey the fifth state to set an energy storage goal.

By Peter Maloney • May 29, 2018

Sonnen's latest funding round nets $70M, led by Shell Ventures

The company's "strategic cooperation agreement" focuses on innovative integrated energy propositions, EV charging solutions and grid services based on a virtual battery pool.

By Robert Walton • May 29, 2018

New Jersey Gov. Murphy signs bills creating zero emission credits for nuclear

The plan is to move the state toward 100% clean energy with nuclear power as an essential part of the mix.

By Peter Maloney • May 24, 2018

80% of transit buses expected to go electric by 2040, report forecasts

California regulators expect to vote in September on a proposal to transition all transit systems in the state to 100% zero emissions by 2040.

By Iulia Gheorghiu • May 23, 2018

EV charging could significantly reduce storage needs, DOE lab finds

Electric vehicles could play a major role in balancing the grid by soaking up excess solar generation during the middle of the day, according to analysts at Lawrence Berkeley National Laboratory.

By Robert Walton • May 22, 2018

Getting paid to charge a battery is an attractive but limited opportunity, analysts say

While Tesla's Australian energy storage facility apparently made a windfall from negative prices, analysts say such prices are too rare to be reliable. 

By Peter Maloney • May 22, 2018

Federal government halts linework on Puerto Rico's grid

FEMA has ended the restoration portion of its mission to repair Puerto Rico's grid two weeks ahead of the official start of hurricane season.

By Robert Walton • May 21, 2018

Hawaii Electric improvising with microgrids as lava stalls resiliency efforts

The utility operator on Hawaii's big island is "handling the situation as well as anyone could," according to the state's PUC.

By Iulia Gheorghiu • May 18, 2018

Public power utilities face growing risk from renewables shift, says Moody's

Credit risks for utilities with a higher share of coal power in their generating mix, such as municipal utilities, center on the potential for stranded assets.

By Peter Maloney • May 18, 2018

APS: Controversial RFP does not violate Arizona gas moratorium

Reliability concerns about energy storage prompted Arizona Public Service to limit its role in a pending contract request, executives said. 

By Gavin Bade • May 17, 2018

Tesla software update allows Powerwall 2 owners to optimize for time-varying rates

The Time-Based Controls update will enable customers to save on energy bills, but the rollout has not yet reached all customers.

By Robert Walton • May 15, 2018

Nevada regulators allow utilities to own EV charging stations

The Public Utilities Commission also approved funding for storage and a low income solar program.

By Robert Walton • May 15, 2018

Competitive solar-plus-storage moves closer to reality

Incentives and economics result in more pairings of solar power and energy storage.

By Peter Maloney • May 14, 2018

'Stunning' APS RFP could violate Arizona gas moratorium, critics say

The request for 800 MW of peaking capacity limits renewables and energy storage to 100 MW, which clean energy advocates say could run afoul of a regulatory pause on gas investments.

By Gavin Bade • May 14, 2018

South Australia's grid service costs slashed 90% by Tesla battery

New data shows the 100 MW / 129 MWh battery has already taken over 55% of the state's frequency control ancillary services.

By Iulia Gheorghiu • May 14, 2018

Agility is the antidote to disruption: Strategies to unlock your utility's agile performance

Unlock your utility’s agility to evolve into a resilient company that thrives in the most uncertain business climates.

By Kate West • May 10, 2018

EnSync's solar+storage to allow energy sharing in Hawaii

By combining solar energy and storage to share power, the company says it can increase system efficiency and lower costs.

By Peter Maloney • May 10, 2018

California to require rooftop solar for new homes

The state is the first to mandate that new homes be built using advanced energy efficiency measures and rooftop solar, starting in 2020.

By Iulia Gheorghiu • May 9, 2018

Washington utilities need better carbon cost estimates in IRPs, regulator says

Washington utilities file an integrated resource plan every two years. Regulators want to see a more robust assessment of climate change risks in the next one.

By Peter Maloney • May 9, 2018

New York City moves to streamline energy storage permitting

City agencies and officials are working to remove barriers to energy storage installations, with comprehensive new guidelines on installing outdoor lithium-ion batteries.

By Peter Maloney • May 8, 2018