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GTD Infrastructure

Capabilities.

Six areas of work, each engineered, built, and turned on by the same team. The work below is what we do every week — not a marketing list of things we could do if asked.

Approach
One company, all the work
Areas
Civil · Steel · Electrical · Controls
Voltage range
4 kV to 500 kV
Where we work
11 states · 4 power grids
Power grid infrastructure overview
FIG— CAP.00  ·  Six areas of work · Site prep through power-on

What we do.

Click into any capability for the full page — process, methods, voltage ranges, recent projects, and FAQ.
345 kV double-circuit corridor with 138 kV substation step-down

Transmission

New construction, rebuilds, and upgrades on transmission lines from 69 kV to 500 kV. When an outage is not an option, our crews has knowledge and expertise in live-line / barehand construction and maintenance.

12.47 kV overhead-to-underground transition with pad-mount switchgear

Distribution

New overhead and underground distribution from 4 kV to 34.5 kV. Storm hardening, pole replacement, underground conversion, and customer service connections.

138/13.8 kV step-down substation

Substation

New substations, upgrades to existing ones, and additions to live yards. From the concrete foundations through the relays that protect the system, all done by our own crews. Our team provides full-service electrical substation engineering, construction, and restoration support for new developments and repurposed industrial sites.

Active storm restoration corridor

Emergency Response

Storm restoration, pole replacement, line repair, and long-duration deployments.

200 MW / 4-hour battery system with grid connection

Battery Storage

Standalone and co-located battery systems from 10 MW to 400 MW. We build the batteries, the substation that connects them to the grid, and handle all the testing.

345/138 kV customer-side substation for data center campus

AI & Data Center Power

Substations, redundant power feeds, and the medium-voltage distribution that powers data center campuses. From 100 MW to 1,200 MW, with phased turn-on for early load.

Need a capability deck for procurement?

We send a tailored package — what we do, recent work, bonding, safety — within one business day.

Request capability package