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Our Guidelines for Generation Interconnection
Standby Generator Process
DESC's Standby Generator Interconnection Standard contains the requirements, in addition to applicable tariffs and service regulations, for parallel interconnection to Dominion Energy South Carolina, Inc. (“Dominion Energy”) by non-utility owned standby generation systems, which have a capacity of 200 to 2500 kW and utilize closed transition switches for normal operation, for the purpose of load testing no more than once a month (“Standby Generators”).Standards & Requirements for Standby Generation
Fast Track Process
Eligibility depends on the type and size of the generator, voltage of the line and location of the Point of Interconnection. Generators greater than 2 MW or not connecting to DESC's Distribution System are ineligible.| Generator Capacity | Application Fee |
|---|---|
| > 20 kW to 100 kW | $750 |
| > 100 kW to 2 MW | $1,000 |
Fast Track PowerClerk Website
Visit PowerClerk to apply
Study Process
In accordance with Section 4.1.1 of Appendix DESC CS of the South Carolina Generation Interconnection Procedure (SCGIP), DESC will begin taking applications during its yearly Cluster Study Request Window on August 15th until September 28th. Applications must be submitted via PowerClerk. If there are any questions about the PowerClerk website, please call the DESC Generation Interconnection Team at 803-217-2175.
This process is followed for all interconnection requests that are ineligible for the Fast-Track Process.
| Generator Capacity | Cluster Study Application Deposit |
|---|---|
| 1 MW or less | $10,000 + $1 per kWac of generator capacity |
| > 1 MW and < 20 MW | $20,000 + $1 per kWac of generator capacity |
| 20 MW to 50 MW | $35,000 + $1 per kWac of generator capacity |
| >50 MW | $50,000 + $1 per kWac of generator capacity |
Cluster Study PowerClerk Website
Visit PowerClerk to apply.
Steps for Interconnecting
Documents & Resources
Frequently Asked Questions
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