Long Duration Storage

Covers energy storage solutions that can store and release energy over extended periods, playing a critical role in balancing renewable energy.

The Latest

The expansion of renewable generation spurs investment, innovation in long-duration energy storage

Without significant investment in long-duration energy storage, much of the renewable energy generated will continue to be wasted due to grid constraints and curtailment.
10 min read
Energy StorageLong Duration StorageNews

DOE’s billion dollar bet: The largest-ever loan supporting long duration energy storage

A $1.76 billion conditional loan guarantee from the feds will support the construction of Hydrostor's Willow Rock Energy Storage Center in California.
6 min read
Energy StorageLong Duration StorageNews

Eos and FlexGen partnering on first US-made long duration storage solution

Eos Energy Enterprises and FlexGen are teaming up to produce America's first fully-integrated domestic energy storage solution for long duration applications.
4 min read
Energy StorageLong Duration StorageNews

RWE testing EnerVenue long duration metal-hydrogen batteries in pilot project

RWE is conducting a pilot project at its Milwaukee-area testing facility, cycling EnerVenue's batteries to examine their performance.
4 min read
Energy StorageLong Duration StorageNews

Energy Dome inks supply agreement for first U.S. CO2 battery deployment

The company's long-duration energy storage technology compresses and expands CO₂ in a closed-loop system to store and release energy.
2 min read
BatteriesEnergy StorageLong Duration Storage

Must View

Which prime mover is the biggest winner of the data center sweepstakes?

The short answer is, availability is king.
GasGas TurbinesNews

From the POWERGEN booth: KSB highlights growth in power generation market

The manufacturer sat down with us again at POWERGEN 2025 in Dallas and spoke of the strides KSB has made in the North American power…
BusinessNewsO&M

More Long Duration Storage

Minnesota co-op breaks ground on multi-day energy storage project

Form Energy said this is the first commercial deployment of the company's iron-air battery.
2 min read
Energy StorageLong Duration StorageNews

SRP eyes long-duration storage, including at to-be-decommissioned coal plant

The Arizona utility has issued an RFP for long-duration energy storage technologies to be operational at two sites.
2 min read
Energy StorageLong Duration StorageNews

Microgrid at Marine air base will test long-duration energy storage viability

The Rapid Integration and Commercialization Unit (RICU) at Marine Corps Air Station Miramar is a living laboratory for testing how leading LDES technologies can be…
3 min read
Energy StorageLong Duration StorageNews

Solar + storage project deployed for Arizona electric co-op

The project for Sulphur Springs Valley Electric Co-op (SSVEC), an AEPCO member co-op, includes a 40-MWh energy storage system and an existing 20-MW photovoltaic (PV)…
3 min read
Energy StorageLong Duration StorageNews

DTECH Data Centers & AI 2025

May 27-29, 2025 | San Jose, CA

Tackling booming data center growth to shape the future of the grid.
Learn More

‘World’s largest’ concrete thermal energy storage pilot completes testing

The 10-MW-hour electric (MWhe) energy storage solution, developed by Storworks, is charged using heat from supercritical steam generated by Alabama Power’s Ernest C. Gaston Electric Generating plant.
2 min read
Energy StorageLong Duration StorageNews

Energy Vault successfully tests, commissions gravity storage system in China

Testing included the successful charging and discharging of units of the 25 MW/100 MWh gravity energy storage system.
2 min read
Energy StorageLong Duration StorageNews

Southern Company invests in solid-state battery company

Solid-state batteries are considered by some to have several advantages over existing Lithium-ion batteries that are currently utilized in a wide array of devices and…
2 min read
BatteriesEnergy StorageLong Duration Storage

US military eyes value of long-duration energy storage

01.18.2024
2 min read
Energy StorageLong Duration StorageNews

This thermochemical energy storage startup heats metal oxide pellets to store heat energy

01.12.2024
3 min read
Energy StorageLong Duration StorageNews

Multi-day energy storage to be demonstrated in California

01.05.2024
3 min read
Energy StorageLong Duration StorageNews

Form Energy receives $30M CEC grant for its 100-hour iron-air battery system

12.15.2023
4 min read
Energy StorageLong Duration StorageNews

Ørsted, Highview Power say liquid air energy storage tests show value

12.04.2023
2 min read
Energy StorageLong Duration StorageNews

California grants over $4M to thermal storage startup

11.22.2023
4 min read
Energy StorageLong Duration StorageNews

Siemens Energy, Corre Energy to collaborate on multiday compressed air energy storage

11.06.2023
2 min read
Energy StorageLong Duration StorageNews

Microgrid with long-duration energy storage to help power California children’s hospital

09.25.2023
2 min read
Energy StorageLong Duration StorageMicrogrids

Westinghouse long-duration pumped thermal storage project nets federal funding

09.22.2023
2 min read
Energy StorageLong Duration StorageNews

DOE to fund $70 million for two 100-hour battery projects

09.22.2023
3 min read
Energy StorageLong Duration StorageNews

Eos lands $400 million DOE loan to scale long-duration energy storage manufacturing

09.04.2023
3 min read
Energy StorageLong Duration StorageNews

NREL analysis reveals closed-loop pumped storage has lowest global warming potential

08.18.2023
3 min read
Energy StorageHydropowerLong Duration Storage
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