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Electricity Monthly Update

With Data for August 2019  |  Release Date: October 24, 2019  |  Next Release Date: November 26, 2019

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Highlights: August 2019

  • Daily wholesale electricity prices reached $751/MWh in Texas (ERCOT) during August 2019.
  • A new all-time daily peak electricity demand record was set in Texas (ERCOT) on August 12, 2019.
  • Electricity generation in the Northeast decreased by 9.6% compared with the previous year, as the region experienced lower temperatures compared with the record high temperatures experienced in August 2018.

Key indicators

Statewide average temperature ranks
Statewide precipitation ranks
Total net generation
Net generation by select fuel sources

U.S. passes 1 gigawatt of operational battery capacity

In August 2019, U.S. battery energy storage capacity reached 1 gigawatt (GW). This significant milestone highlights the comparatively large increase in energy storage capacity added since 2015. It also sets a baseline for the substantial growth in capacity projected to come online by the end of 2023.

Operational battery capacity experienced large growth between 2015 and 2019, expanding by almost 670.7 megawatts (MW).

U.S. operational battery capacity, 2007-2018 Source: U.S. Energy Information Administration, Form EIA-860, Annual Electric Generator Report; Form EIA-860M, Monthly Update to the Annual Electric Generator Report.
Note: Data for 2019 are preliminary.

The trend of this capacity growth does not appear to be slowing, particularly in states such as Florida, New York, and Oklahoma. Notably, Florida expects to increase its current installed capacity from 14 MW to 409 MW by 2023. New York plans to have a battery storage capacity of 318 MW by 2023, an increase of 10 times its current level. In addition, in Oklahoma, the 250 MW Skeleton Creek Energy Center will be the first utility scale battery in the state and is expected to come online by 2023.

Current operational nameplate capacity by state varies significantly. California accounts for 25.4% of all operational battery storage capacity in the United States with 261.6 MW. Illinois ranks second and accounts for 12.9% of all operational battery storage capacity with 132.7 MW. Texas and Hawaii join these two states as the only other states with more than 50 MW of installed capacity at present.

U.S. installed battery capacity by state as of August 2019 Source: U.S. Energy Information Administration, Form EIA-860, Annual Electric Generator Report; Form EIA-860M, Monthly Update to the Annual Electric Generator Report.
Note: Data for 2019 are preliminary.

The U.S. Energy Information Administration (EIA) expects that the United States will reach 3,959.3 MW of operational energy storage capacity by 2023. California will continue to lead all states in installed battery storage. During the next four years, states with small energy storage capacities will also significantly increase their energy storage capacities. Massachusetts, which currently has 21.6 MW of installed capacity, will increase its energy storage capacity by nearly 11 times its current level. The Cranberry Point Energy Storage site (a 150 MW energy storage battery that will come online in 2023) will mostly drive this increase. Nevada, which is one of 17 states that currently does not have any utility scale battery installations, will have 95 MW of energy storage capacity by 2022.

U.S. proposed battery capacity by state from September 2019 through December 2023 Source: U.S. Energy Information Administration, Form EIA-860, Annual Electric Generator Report; Form EIA-860M, Monthly Update to the Annual Electric Generator Report.
Note: Data for 2019 are preliminary.


Principal Contributor:

Giovanni Naula
(Giovanni.Naula@eia.gov)

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