Serving the United States & the Americas

G&G Renewable Services delivers specialized engineering, testing, maintenance, and commissioning for power transformers, substations, and renewable energy assets — from utility-scale solar and wind to battery energy storage systems.

Service Pillars

Transformers
Diagnostics, maintenance, repair, oil processing, assembly, and life-extension for power and distribution transformers.

Electrical Testing:
Advanced diagnostics including SFRA, Tan Delta, DGA interpretation, partial discharge analysis, and VLF testing.

Substations & Switchgear:
Installation, maintenance, modernization, and commissioning of high- and medium-voltage substation equipment, including SF6/GIS.

Renewables & BESS:
Specialized services for solar PV plants, wind facilities, battery storage systems, collector substations, and grid interconnections.

Commissioning & Energization:
Pre-energization testing, SAT support, functional verification, and safe startup of new and modernized assets.

Failure Investigation & RCA:
Transformer teardown inspection, forensic analysis, and root cause determination after operational events.

80+ years of cumulative team experience across the Americas

Conventional power +renewables:
solar, wind, BESS, hybrid systems

Transformers up to 750 MVA and equipment up to
500 kV voltage class

Utilities, OEMs, EPC contractors, and end users served

Your assets can't afford downtime. Neither can we.
Talk to our engineering team today.