Invenergy adds 31.5 MW battery to booming PJM frequency regulation market

PJM is now on track to reach an energy storage capacity of over 550 MW next year, with almost all of that providing frequency regulation, among other services.

By Herman K. Trabish • Nov. 4, 2015

Hawaii's largest solar array, complete with storage, now online

REC Solar has brought a 12 MW solar system online for Kaua‘i Island Utility Cooperative, which is paired with a lithium-ion battery system to smooth renewable integration.

By Robert Walton • Nov. 3, 2015

Explore the Trendline➔

Top 5 Stories from Utility Dive

The U.S. clean energy transition is expected to accelerate in 2024 but faces question around transmission, financing, federal elections and other issues.

By Utility Dive staff

Ice, ice energy: The hot market for cooled liquid energy storage

Ice Energy and CALMAC are proving their value while newer technologies wrestle with cost.

By Herman K. Trabish • Nov. 3, 2015

The day after: How solar can thrive in the post-net metering era

With storage, TOU rates and control tech, solar can boom in the absence of net metering and benefit utilities as well.

By Herman K. Trabish • Nov. 3, 2015

Xcel proposes 2 solar-storage projects in Denver

The two solar+storage projects aims to test out battery operations paired with solar systems for future "smart" and "sustainable" cities, officials said. 

By Robert Walton • Nov. 3, 2015

New Enphase solar-storage product combines monitoring, control in a single device

Enphase Energy is introducing an all-in-one solar storage and control system in December.

By Peter Maloney • Nov. 2, 2015

Report: Global grid storage hits 1 GWh milestone for 2015

Lux Research reports the lithium-ion battery market has been growing faster than the overall storage market. 

By Peter Maloney • Oct. 30, 2015

Inside the first fully dispatchable utility solar-storage project in Hawaii

SolarCity is combining solar panels and storage in a single project on Kaua'i, but the most innovative part of the deal could be how it is structured.

By Peter Maloney • Oct. 29, 2015

Bipartisan coalition launches Congressional Battery Storage Caucus

The new group in the U.S. Congress aims to educate lawmakers about storage and push legislation to boost the industry.

By Gavin Bade • Oct. 27, 2015

From theory to practice: The challenges in moving to 'Utility 2.0'

Executives from four major utilities spoke at ESNA 2015 about the trials and tribulations of putting more new technology on their grids. 

By Herman K. Trabish • Oct. 27, 2015

California's new demand response future begins

The state's new Demand Response Auction Mechanism could bring a vast array of resources into the power management fold.

By Robert Walton • Oct. 26, 2015

Pennsylvania PUC approves PECO's $274M reliability, microgrid program

The Philadelphia-based utility's proposal includes up to $100 million for a microgrid pilot to enhance grid resiliency. 

By Peter Maloney • Oct. 26, 2015

What comes after net metering: Hawaii's latest postcard from the future

Hawaii regulators offered two new remuneration schemes for rooftop solar in a landmark decision last week, along with new guidance on time of use rates.

By Herman K. Trabish • Oct. 22, 2015

Stem, HECO partner on 1 MW battery storage pilot in Hawaii

Installations will be aimed at cutting commercial-industrial scale customers’ peak demand charges and providing grid support services.

By Herman K. Trabish • Oct. 21, 2015

What's the value of energy storage? It's complicated

Experts at ESNA's conference last week discuss the complications of valuing storage.

By Herman K. Trabish • Oct. 20, 2015

While VC funding grows for smart grid and efficiency, energy storage falls

Overall funding for storage is down, but the good news is nearly all of the VC funding from Q3 2015 happened in the U.S.

By Davide Savenije • Oct. 20, 2015

Primer: The now and future impacts of energy storage

As renewables penetration grows, utilities will see the need for storage to move generation to when consumers use the most electricity.

By Herman K. Trabish • Oct. 20, 2015

ESNA 2015: Inside California's energy politics, the FERC Order 745 case, and the coming storage cost shift

Utilities and storage providers remained upbeat in the final day of ESNA, but not everything was sunny in San Diego.

By Gavin Bade • Oct. 16, 2015

ESNA 2015: Why energy storage is key to a future with 'no more gas turbines'

The first days of the Energy Storage North America conference showed a sector brimming with optimism.

By Gavin Bade • Oct. 15, 2015

Honey, I shrunk the grids: The emergence of 'nanogrids'

The falling cost of energy storage and solar panels is fueling the growth of “nanogrids,” small systems that often serve a single building, according to new research.

By Robert Walton • Oct. 14, 2015

Why battery storage is 'just about ready to take off'

Energy storage is following solar sector market trends and offers opportunities, challenges and choices to utility planners. 

By Herman K. Trabish • Oct. 13, 2015

Developers add energy storage to Ohio solar project after law changes

The project is being touted as the largest storage project in Ohio and the largest solar+storage facility in the U.S.

By Robert Walton • Oct. 13, 2015

Green Charge Networks to bring aggregated energy storage into CAISO market

The move will help the state meet its new 50%-by-2030 renewables mandate. 

By Herman K. Trabish • Oct. 13, 2015

Kentucky utility installs home storage for demand response pilot program

The Kentucky municipal utility, serving 14,000 customers, is looking to reduce its carbon emissions by 25% by testing out a pilot program using energy storage widgets. 

By Robert Walton • Oct. 9, 2015

IRS may redefine investment tax credit for energy projects

New definitions could affect rooftop solar, energy storage and other demand side resources. 

By Herman K. Trabish • Oct. 7, 2015