Vermont PUC lifts caps on Green Mountain Power battery storage programs with Tesla, others

Demand for GMP’s Tesla-based and “bring your own device” energy storage programs has outstripped annual caps in the wake of winter storms and summer floods.

By Ethan Howland • Aug. 29, 2023

France’s Engie to buy battery storage in Texas, California from Broad Reach Power

The deal includes 350 MW of operating grid-scale battery storage and another 880 MW under construction, primarily in the Electric Reliability Council of Texas territory.

By Robert Walton • Aug. 29, 2023

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

Focusing on hardware to stop fires at energy storage projects

Prioritizing energy storage systems’ IP rating, cooling systems and surge protection mechanisms—within a broader, integrated fire safety strategy—manufacturers can ensure the reliability and safety of their projects.

By Dewei Guan, Mechanical Engineer, Product Development, Wärtsilä ES&O and David Frye, Engineering Manager, Electrical Design, Wärtsilä ES&O • Aug. 28, 2023

American Clean Power asks FERC to hold conference on capacity accreditation

Improving the patchwork approach to measuring the reliability value of power plants, energy storage and other resources would bolster the grid, according to the trade group.

By Ethan Howland • Aug. 25, 2023

2 Tesla virtual power plants cleared to provide energy to Texas electric grid

The pair of aggregated Powerwalls are the first of eight virtual power plants participating in an Electric Reliability Council of Texas pilot project.

By Robert Walton • Aug. 24, 2023

Closed-loop pumped hydro storage tech least likely to contribute to global warming: NREL

The analysis examines the global warming potential of different technologies that provide both short-duration and long-duration energy storage.

By Kavya Balaraman • Aug. 22, 2023

Expanding your solar business? Here are 4 questions you have to answer about home battery storage

Learn how to answer common questions so you can facilitate solar adoption and grow your customer base.

Aug. 21, 2023

New York bets on long-duration energy storage with $15M award to Form Energy, others

Form Energy’s project will be the first demonstration of its technology in New York and the only multi-day battery storage project in the state.

By Kavya Balaraman • Aug. 19, 2023

DOE lab develops new models to address inverter faults, avoid grid disruptions

Electromagnetic transient domain analysis may be key to stopping inverter-based resources from tripping offline or reducing output in response to grid events, according to research from Oak Ridge National Laboratory.

By Robert Walton • Aug. 18, 2023

GM invests $60M in Mitra Chem to develop low-cost EV batteries

Mitra Chem says its technology can reduce electric vehicle battery development times by 90%.

By Eric Walz • Aug. 17, 2023

IRA drives $12.4B into US storage as investments ‘juice’ an already strong market: Freyr exec

Since the Inflation Reduction Act passed, 210 major new clean energy projects have been announced, which have the potential to drive up to $86.3 billion in private investment, says E2. 

By Diana DiGangi • Aug. 15, 2023

Utility-owned storage becomes point of contention in New Jersey incentive program proposal

State regulators are requesting additional public input on the proposal, which would include only private storage devices and doesn’t allow for utility-owned and operated ones.

By Kavya Balaraman • Aug. 15, 2023

A community solar boom will test Xcel, other utility plans against developer, customer needs: analysts

New state and federal funding and initiatives for community solar can bring equity and system reliability to the emerging energy transition, analysts say.

By Herman K. Trabish • Aug. 10, 2023

Energy Vault signs gravity energy storage license agreement with US renewable developer

The company still plans to continue directly building energy storage projects itself, particularly in North America, Chairman and CEO Robert Piconi said on an earnings call Tuesday.

By Kavya Balaraman • Aug. 9, 2023

Eos Energy pushes back against short-seller report raising concerns about its 2.2 GWh backlog

A July 27 report by Iceberg Research called into question the backlog, which Eos Energy valued at $535 million at the end of March, saying it is “100% confident that the backlog is fake.”

By Kavya Balaraman • Aug. 8, 2023

FERC interconnection rule may not speed process in much of US: experts

Many transmission providers already use the just-issued rule’s central reform, dampening its effect in large parts of the U.S., lawyers and industry experts say.

By Ethan Howland • Aug. 4, 2023

New York governor creates safety group to investigate fires at energy storage facilities

The move comes after multiple fires in recent months. As well as working to prevent fires, the group will help ensure emergency responders have the training to address them.

By Kavya Balaraman • Aug. 3, 2023

NYISO warns FERC waiver for Hecate’s 650-MW storage project could set bad precedent

Hecate Grid said it will abandon the $300 million battery storage project on Staten Island if it doesn’t receive a one-year extension to meet some of the grid operator’s interconnection requirements.

By Ethan Howland • Aug. 1, 2023

DOE makes $450M available for residential solar, battery systems in Puerto Rico

This summer, Puerto Rico experienced rolling blackouts 570 times more frequently than the North American average, according to the Department of Energy.

By Robert Walton • Aug. 1, 2023

FERC issues rule to speed grid connections for storage, renewables, other generators amid 2-TW backlog

With generators facing years to complete interconnection reviews, the rule is a “significant” step in getting new power supplies online, but more work is needed, according to experts.

By Ethan Howland • July 28, 2023

Xcel Energy, Ambri liquid metal battery trial delayed to early next year

Originally slated for 2022, the project has encountered delays in spite of a booming market for energy storage projects, the battery’s manufacturer says.

By Emma Penrod • July 24, 2023

Hydrogen can fill a critical gap in decarbonizing, but can utilities make the business case?

As electric and gas utilities seek approval from regulators, they will need to address concerns about hydrogen economics, sustainability and safety.

By Leah Kunkel, Wesley Miller and Jessica Wright • July 24, 2023

AES Indiana plans 200-MW/800-MWh energy storage at retiring coal plant

The project would use existing interconnection rights. “As renewables proliferate, finding ideal interconnections is getting, and will continue to get, more difficult,” an AES official said.

By Ethan Howland • July 20, 2023

Tesla Q2 storage deployments increase 222% as company navigates ‘fractured regulatory environment’

The company’s solar deployments, however, declined year over year, which Tesla attributed to a high interest rate environment. 

By Kavya Balaraman • July 20, 2023

Battery storage systems could face rapid asset degradation, especially with arbitrage: Fitch

Active management is required to implement arbitrage strategies, which involve purchasing energy when prices are low and selling when they increase, according to the analysis.

By Kavya Balaraman • July 18, 2023