House clean energy tax bill sees broad industry support, but Senate path uncertain

The draft legislative package, introduced Nov. 19, adds energy storage and offshore wind, while extending solar and electric vehicle tax credits.

By Iulia Gheorghiu • Nov. 20, 2019

Can concentrated solar power act as energy storage? DOE wants to know more

DOE wants to make CSP work as solar energy that is available "on demand" and can store energy in the form of heat, as opposed to PV solar which is intermittent and depends upon separate systems to store energy for later use.

By Matthew Bandyk • Nov. 19, 2019

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

Salt River Project to install Arizona's largest battery system, helping to replace giant coal plant

The utility plans to develop two solar+storage facilities, with one featuring a 1 GWh battery system, which will help replace the lost power from the closure of the coal-fired Navajo Generating Station.

By Robert Walton • Nov. 15, 2019

How does AI improve grid performance? No one fully understands and that's limiting its use

Machine learning's greatest impact will be helping algorithms understand "how the voltage here affects the voltage there," which will enable "optimizing grid operations like dispatching battery storage," one industry executive said.

By Herman K. Trabish • Nov. 14, 2019

New battery storage on shaky ground in ancillary service markets

New battery storage systems will quickly overwhelm relatively finite ancillary service demand in regulated and deregulated markets across North America.

By Derek Sackler • Nov. 14, 2019

In search for cheaper, longer energy storage, mountain gravity could eventually top lithium-ion

Using mountains for storage could be combined with hydropower and prove to be economically attractive for microgrids, islands and areas with high electricity costs, a new study finds.

By Matthew Bandyk • Nov. 12, 2019

California proposes extending 4.8 GW gas capacity as bridge to 3.3 GW of new clean energy by 2023

The state's newly authorized procurement aims to have renewables-plus-storage and standalone storage compete well against other resources, along with energy efficiency and demand response resources.

By Iulia Gheorghiu • Nov. 11, 2019

Renewables continue to get cheaper, just not as fast as before, Lazard analysis finds

The financial advisory firm released its latest levelized cost of energy report, showing the rate of cost declines for renewables is slowing as the industry matures.

By Robert Walton • Nov. 8, 2019

Incentives spur rapid storage growth in New York, outpacing distributed solar expansion: NYSERDA CEO

NYSERDA has been comparing the pace of its storage incentive program, aimed at bringing developers into the state, with the New York Sun program for distributed solar.

By Iulia Gheorghiu • Nov. 8, 2019

Congressional Policy Tracker: Everything you need to know from carbon capture to wind energy

Renewable energy developers are lobbying for tax credit extensions while Republican leaders seek bipartisan research-focused solutions to support advanced nuclear, carbon capture and energy storage.

By Iulia Gheorghiu • Updated Dec. 2, 2019

Bay area energy agencies launch distributed storage solicitation amid PG&E power shutoffs

The request for proposals by three Community Choice Aggregators and one municipal utility comes as local power providers increasingly look to local resources to meet the state's Resource Adequacy requirements.

By Larry Pearl • Nov. 5, 2019

Austin SHINES: A working model for managing solar from both sides of the meter

See how we're revolutionizing the way utilities view and utilize the influx of distributed energy resources entering the grid.

Oct. 31, 2019

Adding renewables and storage in LA is hard. Clean Power Alliance wants to change that.

Community choice aggregators like Clean Power Alliance are looking for local energy resources, but that has proven difficult in congested metropolitan areas where space is very expensive, such as Los Angeles County.

By Iulia Gheorghiu • Oct. 25, 2019

Tesla earnings surprise includes storage, solar growth

A surprise profit sent shares soaring. Beyond vehicle sales growth and cost cutting, the company boasted record 477 MWh storage installations and rebounding solar in Q3.

By Robert Walton • Oct. 24, 2019

Utilities' failure to plan for DER surge promises missed opportunities, increased costs, analysts say

Utilities can use skyrocketing customer-owned DER to balance rising penetrations of variable renewables on their systems, if they take on the big work of distribution system planning.

By Herman K. Trabish • Oct. 24, 2019

EV charging promises a demand response bonanza for utilities, if they can handle it

Aggregated flexible load of high EV penetrations will be lucrative in demand response markets, but for now smaller EV demand gives utilities management practice.

By Herman K. Trabish • Oct. 18, 2019

FERC OKs PJM, SPP storage plans, sets separate proceedings for minimum run-time requirements

PJM must implement Order 841 by Dec. 3 while SPP has nine months, although FERC opened separate dockets with the grid operators relating to their storage duration requirements.

By Iulia Gheorghiu • Oct. 18, 2019

Let's kill 'utility-' or 'grid-scale' storage

"We're not calling for the end of the large-scale storage industry. We're saying that distributed, smaller-scale storage can provide all the same value to the grid that large-scale storage can," Stem's policy director said.

By Ted Ko • Oct. 17, 2019

California's new reliability requirements create short-term opportunity for storage, CAISO says

Solar's ability to qualify for resource adequacy is declining as peak demand shifts, and storage has a limited window to meet the resulting capacity needs.

By Robert Walton • Oct. 15, 2019

There once was a 48 MWh Tesla battery on Nantucket, which saved National Grid $120M in its budget

Pairing the eight-hour battery system with a 15 MW diesel generator, the utility avoided nearly $200 million in permitting and construction costs for an undersea transmission cable.

By Iulia Gheorghiu • Oct. 10, 2019

PJM presses FERC to act by Nov. 3 on Order 841 filing detailing market participation for energy storage

The notice said the grid operator and its stakeholders need at least one month's notice to go live with a storage market participation model.

By Iulia Gheorghiu • Oct. 9, 2019

Tech tip: Manage energy consumption with a Fronius smart meter

Determine how to optimize your energy production and make the most of your solar investment.

Oct. 8, 2019

3 state commissions upending the way utilities do business

Oregon, Illinois and Hawaii regulators are disrupting the traditional utility cost-of-service model to bring more distributed energy resources online.

By Herman K. Trabish • Oct. 2, 2019

As Puerto Rico generators trip offline, PREPA relies on load shedding, looks to microgrids

The island utility faces resource adequacy problems as energy regulators consider a plan to reinforce resiliency through eight regional "minigrids."

By Iulia Gheorghiu • Sept. 30, 2019

The future of energy storage is here: An inside look at Rocky Mountain Power’s 600-battery DR project

The 12.6 MWh Utah project uses solar and battery systems as a virtual power plant.

By Iulia Gheorghiu • Sept. 30, 2019