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The U.S. Department of Energy and the North Carolina Clean Energy Technology Center are excited to announce that a new, modernized DSIRE is under construction. The new version of DSIRE will offer significant improvements over the current version, including expanded data accessibility and an array of new tools for site users. The new DSIRE site will be available in December 2014. Staff are currently working hard on the new version of DSIRE but are also maintaining the content of the current version of DSIRE. Thank you for your continued support and patience during this transition. We hope you are as excited for December as we are!

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South Carolina

South Carolina

Incentives/Policies for Renewables & Efficiency

Printable Version
Duke Energy - Net Metering   

Last DSIRE Review: 07/15/2014
Program Overview:
State: South Carolina
Incentive Type: Net Metering
Eligible Renewable/Other Technologies: Photovoltaics, Landfill Gas, Wind, Biomass, Hydroelectric, Small Hydroelectric
Applicable Sectors: Commercial, Industrial, Residential, Nonprofit, Schools, Local Government, State Government, Tribal Government, Fed. Government, Agricultural, Institutional
Applicable Utilities:Duke Energy
System Capacity Limit:100 kW for non-residential; 20 kW for residential
Aggregate Capacity Limit:0.2% of utility's SC jurisdictional retail peak demand for previous calendar year
Net Excess Generation:Credited to customer's next bill at applicable time-of-use rate or less; granted to utility annually on June 1
REC Ownership:Customer owns RECs until REC market emerges, at which point utilities own RECs
Meter Aggregation:Not addressed
Web Site:

Note: In April of 2014, S.B. 1189 created the voluntary Distributed Energy Resource Program and mandated that the Public Service Commission write new net metering rules that will supersede all old rules. Customer-generators already a part of net-metering agreements may remain in these existing programs until December 31, 2020. The latest net metering details are available in PSC Docket 2014-246 E.

In August 2009, the South Carolina Public Service Commission issued an order mandating net metering be made available by the regulating utilities; the order incorporates a net metering settlement signed by the individual interveners, the Office of Regulatory Staff and the three investor-owned utilities (IOUs). The order detailed the terms of net metering, including the ownership of RECs in South Carolina and standardized the structure of net metering programs offered by the IOUs. 

Net excess generation (NEG) is credited to the customer's next bill at the utility's retail rate, and then surrendered to the utility annually at the beginning of each summer season on June 1. Net-metered customers' on-peak generation (under the TOU tariff) may be used to offset off-peak consumption, but not vice versa. Significantly, these tariffs involve additional charges that do not apply to customers who do not net meter. Duke Energy requires net-metered customers to switch to a TOU tariff (which incorporates potentially high demand charges into its fee structure) or charges customers additional monthly fees, including stand-by charges.

Systems must comply with the South Carolina Standard for Interconnecting Small Generation 100 kW or less with Electric Power Systems (EPS). For more information, see the utility's program web site.




  Customer Service - Duke Energy
PO Box 1090
Charlotte, NC 28201
Phone: (800) 976-4328
Web Site:
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Disclaimer: The information presented on the DSIRE web site provides an unofficial overview of financial incentives and other policies. It does not constitute professional tax advice or other professional financial guidance, and it should not be used as the only source of information when making purchasing decisions, investment decisions or tax decisions, or when executing other binding agreements. Please refer to the individual contact provided below each summary to verify that a specific financial incentive or other policy applies to your project.

While the DSIRE staff strives to provide the best information possible, the DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. make no representations or warranties, either express or implied, concerning the accuracy, completeness, reliability or suitability of the information. The DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. disclaim all liability of any kind arising out of your use or misuse of the information contained or referenced on DSIRE Web pages.

Copyright 2014 - 2015 North Carolina State University, under NREL Subcontract No. XEU-0-99515-01. Permission granted only for personal or educational use, or for use by or on behalf of the U.S. government. North Carolina State University prohibits the unauthorized display, reproduction, sale, and/or distribution of all or portions of the content of the Database of State Incentives for Renewables and Efficiency (DSIRE) without prior, written consent.