Question 1

How big is Hydra?

Accepted Answer

Hydra has a reported capacity of 200 MW. Source: EIA Form 860.

Question 2

What kind of plant is Hydra?

Accepted Answer

Hydra is a batteries facility in Pecos County, TX, participating in the ERCOT market.

Question 3

Where is Hydra located?

Accepted Answer

Hydra is in Pecos County, TX, inside the ERCOT balancing area.

Question 4

Who operates Hydra?

Accepted Answer

Hydra is operated by Engie North America according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

Question 5

When did Hydra start operating?

Accepted Answer

Hydra reports a commercial operation date of 2024. Current status: operating. Source: EIA Form 860.

Question 6

How much electricity does Hydra generate?

Accepted Answer

Hydra reported 163.6 GWh over the twelve months to 2026-06. For a storage plant this is reported gross generation — a discharge proxy, not a cycle count or a conventional capacity factor.

Question 7

How does Hydra compare to other plants?

Accepted Answer

By capacity, Hydra ranks #48 of 962 operating plants of the same technology nationally. It ranks #18 of 223 in TX.