U.S. battery storage capacity has increased by 35% by 2020 — and is growing

U.S. battery capacity increased by 35% by 2020 and tripled over the past five years, according to the U.S. Energy Information Administration (IAA).

Large battery storage

The IAA notes the difference between battery capacity and power capacity:

Energy capacity and energy capacity terms describe different energy parameters. Power capacity is the total amount of energy that the battery system can store. Power capacity is the maximum amount of energy the battery can generate at a given moment. Battery storage systems are often designed to maximize their power, depending on the intended use of the battery.

A.D. By the end of 2020, US battery power had reached 1,650 megawatts. U.S. utilities report plans to load more than 10,000 megawatts of battery power between 2021 and 2023. This is 10 times the capacity in 2019.

As of December 2020, five states will have more than 70% of the US battery storage capacity. California has 31% (506 MW) of long-distance 1, Texas, Illinois, Massachusetts and Hawaii each. Power over 50 MW.

Extensive US battery system Energy By the end of 2019, it has reached 1,688 megawatts, an increase of 30% from 2018.

Battery storage and solar

Most of the new storage capacity comes from battery power systems combined with solar. Since December 2020, 30% of large battery storage systems have been powered by wind or solar energy and 8% by fossil fuels. EIA Notes:

In the United States, we expect the relationship between solar power and battery storage to change over the next three years, as most of the planned projects will be generational, especially with solar panels. If all the known projects from 2021 to 2023 are currently implemented, then the share of US battery storage with that generation will increase from 30% to 60%.

Read more The rise of blacks and electricity bills is driving American home solar and storage

Photo Kawai Island Utility Cooperative

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