Grid Interconnection Services
As a recognized leader in power delivery engineering, Sargent & Lundy has all of the expertise and resources necessary to successfully design the interconnection of renewable energy facilities to the transmission grid at all voltage levels. Our knowledge of the transmission and substation design standards applied by utility companies throughout the country allows us to effectively provide designs that comply with diverse requirements, as well as the applicable industry codes and standards.
Services
Our capabilities encompass the full range of professional services for these interconnections, including:
- Transmission line routing and substation site selection
- Permitting support
- Complete substation engineering
- Protection and control system design
- Transmission line engineering
- Development of equipment and material specifications
- Procurement services
- Material quality control and expediting
- Construction management
- Electrical testing and commissioning
Representative projects
- Interconnection of a 400 MW wind farm to a 345 kV transmission line, including:
- Two 345/34.5 kV substations, one at the termination of the Phase I and Phase II wind generator collection systems
- 13 miles of 345-kV transmission line
- 345 kV 3-breaker ring bus substation
- Interconnection of a 80 MW wind farm to a 138 kV transmission line, including:
- 138 kV 3-breaker ring bus substation
- Interconnection of a 160 MW wind farm to a 345 kV transmission line, including:
- 345 kV 4-breaker ring bus substation
- Modification of the existing 345 kV transmission line to loop into the interconnection substation
- 345 kV 4-breaker ring bus substation
