Around 200GW of energy storage in US interconnection queues at end of 2020

May 28, 2021
LinkedIn
Twitter
Reddit
Facebook
Email
A solar-plus-storage installation in North Carolina. More than one-third of the solar in the interconnection queues is proposed as a hybrid plant. Image: Lockheed Martin.

A record amount of solar capacity and energy storage is currently in US transmission interconnection queues, according to a new study from Lawrence Berkeley National Laboratory (Berkeley Lab).

At 462GW, solar accounts for most of the total generator capacity in the queues, which reached a record of more than 755GW and an estimated 200GW of storage capacity at the end of 2020. To put that in perspective, the US had 1,117GW of utility-scale electricity generating capacity in operation last year.

Proposed large-scale electric generation and storage projects must apply for interconnection to the bulk power system via interconnection queues. Berkeley Lab said that while many projects that apply for interconnection are not subsequently built, data from the queues provide a general indicator for mid-term trends in developer interest.

To read the full story, visit PV Tech.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

24 March 2026
Dallas, Texas
The Energy Storage Summit USA is the only place where you are guaranteed to meet all the most important investors, developers, IPPs, RTOs and ISOs, policymakers, utilities, energy buyers, service providers, consultancies and technology providers in one room, to ensure that your deals get done as efficiently as possible. Book your ticket today to join us in 2026!
15 September 2026
San Diego, USA
You can expect to meet and network with all the key industry players again in 2025 from major US asset owners, operators, RTOs and ISOs, optimizers, software and analytics providers, technical consultancies, O&M technology providers and more.

Read Next

February 26, 2026
Energy storage developer and subsidiary of Canadian Solar, Recurrent Energy, has sold its 200MWh Fort Duncan battery energy storage system (BESS) project, located in Texas, US, to developer Hunt Energy Network.
February 26, 2026
The US Department of Energy (DOE) has closed a US$26.5 billion loan package to two wholly owned subsidiaries of utility Southern Company, in Georgia and Alabama, US.
February 26, 2026
Utility Xcel Energy will install 30GWh of US startup Form Energy’s iron-air batteries at a data centre in Pine Island, Minnesota, belonging to tech giant Google.
February 25, 2026
Experts at the ongoing Energy Storage Summit 2026 have cautioned against treating co-located storage as a “silver bullet” to prop up commercially underperforming solar assets.
February 25, 2026
In this Energy-Storage.news roundup, FlexGen updates its EMS, LandGate launches a BESS site selection tool, ON.energy and Shoals target AI data centres, and Sunrun has a successful season of dispatching energy with PG&E.