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GTD Infrastructure

Gulf Coast Battery Storage — 200 MW / 4-hour

A standalone battery storage project with 200 megawatts of capacity and 4 hours of storage, feeding a customer-side substation that connects it to the utility. Standard battery setup, full testing, tax credit certification, energized 11 months from start.

Client
Independent power producer
Region
Gulf Coast Texas (ERCOT)
Duration
11 months to energize
Voltage
34.5 kV · 200 MW
Status
Energized
200 MW / 4-hour battery storage with grid connection
FIG— P0218.A  ·  200 MW / 4-HOUR BATTERY STORAGE WITH GRID CONNECTION

Project details.

The numbers that defined the work.
Capacity 200 MW · 4 hours
Setup Standard battery configuration
Internal voltage 34.5 kV
Grid connection 138 kV
Battery manufacturer Confidential
Region Gulf Coast (ERCOT)
Schedule 11 months to energize

The challenge we walked into.

An independent power producer needed standalone battery storage in ERCOT Gulf Coast territory. The schedule was tight — driven by tax credit qualification deadlines. The site was new construction, and the substation work needed to happen in parallel with the battery pad to hit the dates.

How we approached the work.

The decisions that kept us on schedule and got the outcome the client needed.
  • 01

    Substation built alongside the batteries

    The customer-side substation was built by the same crews on a schedule that tracked the battery pad work. No handoffs between contractors, no schedule gaps.

  • 02

    Standard battery configuration

    Batteries feeding their own inverter, then a transformer that steps the voltage up to connect to the grid. Selected because it aligned with the battery manufacturer’s warranty.

  • 03

    Tax credit documentation built during construction

    Cost documentation for tax credit qualification was prepared during construction, not after. All documents delivered to the operator on the day the system energized.

What the client got.

200 MW battery storage with 4 hours of capacity energized 11 months from start. Tax credit documentation closed on the day of energization. The operator advanced to phase 2 (another 200 MW) with the same team.

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