South Carolina Laws and Incentives

Listed below are the summaries of all current South Carolina laws, incentives, regulations, funding opportunities, and other initiatives related to alternative fuels and vehicles, advanced technologies, or air quality. You can go directly to summaries of:

• State Incentives (11)
• Utility / Private Incentives (9)
• Laws and Regulations (16)

State Incentives

South Carolina's National Electric Vehicle Infrastructure (NEVI) Planning

The U.S. Department of Transportation’s (DOT) NEVI Formula Program requires the South Carolina Department of Transportation (SCDOT) to submit an annual EV Infrastructure Deployment Plan (Plan) to the DOT and U.S. Department of Energy (DOE) Joint Office of Energy and Transportation (Joint Office), describing how the state intends to distribute NEVI funds. The submitted plans must be established according to NEVI guidance.

For more information about South Carolina’s NEVI planning process, see the SCDOT Electric Vehicle Charging Plan website. To review South Carolina’s NEVI plan, see the Joint Office State Plans for EV Charging website.

Biofuels Production Tax Credit

Beginning January 1, 2017, qualified biodiesel and ethanol facilities are eligible for an income tax credit of $0.075 per gallon for new production of biodiesel and ethanol. Biodiesel and ethanol facilities may claim the tax credit for up to 10 million gallons of ethanol and biodiesel produced during a 12-consecutive month period, up to 36 months. Additional terms and conditions apply. For more information, see the South Carolina Energy Office Funding website.

Battery Manufacturing Tax Incentive

For taxation purposes, the taxable fair market value of manufacturing machinery and equipment purchased for use at a renewable energy manufacturing facility may be reduced by 20% of the original cost. Qualified renewable energy manufacturing facilities include those manufacturing batteries for hybrid electric, fuel cell, or other motor vehicles certified by the South Carolina Energy Office. Qualified facilities must invest at least $100 million in the project and create at least 200 new full-time jobs with an average compensation level of 150% of the annual per capita income in South Carolina or the county where the facility is located, whichever is less. Additional restrictions apply.

(Reference South Carolina Code of Laws 12-10-30, 12-10-80, 12-15-20, 12-15-30, 12-37-930)

Alternative Fueling Infrastructure Tax Credit

An income tax credit is available for 25% of the cost to purchase, construct, and install qualified alternative fueling infrastructure. Qualified infrastructure includes equipment used to distribute, dispense, or store alternative fuel. Eligible fuels include natural gas and propane. The entire credit must be taken in three equal annual installments beginning with the taxable year in which the facility is placed into service. Unused credits may be carried forward for up to ten succeeding taxable years. A taxpayer may transfer the tax credit to eligible agencies after notifying the South Carolina Department of Revenue. This tax credit expires January 1, 2026.

(Reference South Carolina Code of Laws 12-28-110, 12-37-2820, and 12-6-3695)

Biofuels Distribution Infrastructure Tax Credit

A taxpayer that purchases, constructs, or installs, and places into service a qualified commercial facility for distributing or dispensing biofuels is eligible for an income tax credit of up to 25% for purchase, construction, property, and installation costs. Eligible infrastructure includes pumps, storage tanks, and related equipment used exclusively for distributing, dispensing, and storing biofuels. A qualified facility must clearly label the equipment used to store or dispense the fuel as being associated with biofuel. The credit must be taken in three equal annual installments beginning with the taxable year in which the facility is placed into service. Qualifying fuels include blends containing at least 70% ethanol (E70) dispensed at the retail level for use in motor vehicles, and pure ethanol or biodiesel fuel dispensed by a distributor or facility that blends these non-petroleum liquids with gasoline or diesel fuel for use in motor vehicles.

For more information, see the South Carolina Energy Office Funding website.

(Reference South Carolina Code of Laws 12-6-3620)

Alternative Fuel Project Grants

The South Carolina Office of Regulatory Staff-Energy Office (Energy Office) offers grants of up to $25,000 for alternative fuel demonstration projects. Eligible applicants include state agencies, local governments, public colleges and universities, K-12 public schools, and non-profit organizations. For more information, including how to apply, see the Energy Office’s Mini-Grant Program website.

Diesel Emissions Reduction Grants

The South Carolina Department of Environmental Services (DES) provides U.S. Environmental Protection Agency Diesel Emission Reduction Act (DERA) funding for projects that reduce diesel emissions in South Carolina. Funding for eligible project costs is available to universities, private organizations, businesses, and local government entities that reduce diesel emissions by retrofitting engines, installing idle reduction technologies, or replacing vehicles and equipment. Additional terms and conditions apply. For more information, including funding amounts and how to apply, see the DES DERA Grants website.

Hydrogen and Fuel Cell Tax Exemption

The following are exempt from state sales tax: 1) any device, equipment, or machinery operated by hydrogen or fuel cells; 2) any device, equipment, or machinery used to generate, produce, or distribute hydrogen and designated specifically for hydrogen or fuel cell applications; and 3) any device, equipment, or machinery used predominantly for manufacturing, or research and development involving hydrogen or fuel cell technologies.

(Reference South Carolina Code of Laws 12-36-2120(71))

Idle Reduction and Natural Gas Vehicle (NGV) Weight Exemptions

Any motor vehicle or combination of vehicles equipped with idle reduction technology is allowed to exceed the maximum gross vehicle and axle weight limits by up to 550 pounds (lbs) to compensate for the added weight of the idle reduction technology. The vehicle operator must provide documentation that the vehicle is equipped with fully functional idle reduction technology.

A vehicle powered primarily by natural gas may exceed the state’s gross, single axle, tandem axle, or bridge formula weight limits by an amount equal to the difference of the weight of the natural gas tank and fueling system and the weight of a comparable diesel tank and fueling system, up to 2,000 lbs. Upon request, the vehicle operator must provide documentation that verifies the weight of the natural gas fueling system.

(Reference South Carolina Code of Laws 56-5-4160(M) and South Carolina Code of Laws 56-5-4160(L)))

Alternative Fuel Vehicle (AFV) Revolving Loan Program for Public Entities

The South Carolina Energy Office (SCEO) provides low interest loans for a variety of energy efficiency improvements, including AFV conversions and the incremental costs of a new AFV, with qualified project payback periods. Loans may cover up to 100% of project costs, ranging from $25,000 to $500,000 per state fiscal year. Eligible recipients include state agencies, local governments, public colleges and universities, school districts, and private non-profit organizations. State agencies and public educational institutions may combine their loan with a ConserFund Plus grant, which may cover up to 30% of total project costs. For more information, see the ConserFund website.

(Reference South Carolina Code of Laws 48-52-650)

Alternative Fuel Vehicle (AFV) Revolving Loan Program for Private Entities

The South Carolina Business Development Corporation provides low interest loans for a variety of energy efficiency improvements, including AFV conversions and incremental costs, with qualified project payback periods. Eligible recipients include businesses and industries. Utilities, non-profit organizations, and government entities may be eligible under special conditions. The loan may cover up to 100% of the project costs, ranging from $50,000 to $1 million. Repayment terms vary. For more information, including application deadlines, see the Energy Efficiency Revolving Loan website.

(Reference South Carolina Code of Laws 48-52-650)

Utility / Private Incentives

City of Rock Hill - South Carolina

City of Rock Hill is a municipal utility that operates in South Carolina. This page provides a summary of the types of incentives provided by the utility related to alternative fuels and vehicles. For more information on these incentives, see the City of Rock Hill website.

Residential Incentives

Non-Residential Incentives

Dominion Energy - South Carolina

Dominion Energy is an investor-owned utility (IOU) that operates in multiple states. This page provides a summary of the types of incentives provided by the utility related to alternative fuels and vehicles. For more information on these incentives, see the Dominion Energy website.

Residential Incentives

Non-Residential Incentives

Duke Energy - South Carolina

Duke Energy is an investor-owned utility (IOU) that operates in multiple states. This page provides a summary of the types of incentives provided by the utility related to alternative fuels and vehicles. For more information on these incentives, see the Duke Energy website.

Residential Incentives

Non-Residential Incentives

Fairfield Electric Coop - South Carolina

Fairfield Electric Coop is a cooperative that operates in South Carolina. This page provides a summary of the types of incentives provided by the utility related to alternative fuels and vehicles. For more information on these incentives, see the Fairfield Electric Coop website.

Residential Incentives

Non-Residential Incentives

Lockhart Power Co - South Carolina

Lockhart Power Co is an investor-owned utility (IOU) that operates in South Carolina. This page provides a summary of the types of incentives provided by the utility related to alternative fuels and vehicles. For more information on these incentives, see the Lockhart Power Co website.

Residential Incentives

Non-Residential Incentives

Lynches River Elec Coop - South Carolina

Lynches River Elec Coop is a cooperative that operates in South Carolina. This page provides a summary of the types of incentives provided by the utility related to alternative fuels and vehicles. For more information on these incentives, see the Lynches River Elec Coop website.

Residential Incentives

Non-Residential Incentives

Northwestern Energy - South Carolina

Northwestern Energy is an investor-owned utility (IOU) that operates in multiple states. This page provides a summary of the types of incentives provided by the utility related to alternative fuels and vehicles. For more information on these incentives, see the Northwestern Energy website.

Residential Incentives

Non-Residential Incentives

Santee Cooper - South Carolina

Santee Cooper is a municipal utility that operates in South Carolina. This page provides a summary of the types of incentives provided by the utility related to alternative fuels and vehicles. For more information on these incentives, see the Santee Cooper website.

Residential Incentives

Non-Residential Incentives

York Electric Coop - South Carolina

York Electric Coop is a cooperative that operates in South Carolina. This page provides a summary of the types of incentives provided by the utility related to alternative fuels and vehicles. For more information on these incentives, see the York Electric Coop website.

Residential Incentives

Non-Residential Incentives

Laws and Regulations

Biofuel Blending Capability Requirements and Liability

Terminal operators and other entities involved in the bulk transfer of gasoline or diesel, including suppliers and refiners, must offer all grades of petroleum products not already pre-blended with ethanol and biodiesel, and ensure that the motor fuel is suitable for subsequent blending with biofuels. Terminal operators and other bulk suppliers are not liable for fines, penalties, injuries, or damages resulting from subsequent blending of fuel sold at retail locations. Furthermore, no individual or entity can deny a distributor and retailer from blending biofuels for sale in South Carolina, as long as the individual or entity is registered with the U.S. Internal Revenue Service.

(Reference South Carolina Code of Laws 39-41-235)

Electric Vehicle (EV) Cost Recovery

A public electric utility may seek recovery of the costs associated with programs and resources related to distributed energy resources and load management technologies, including EV charging, as part of a rate case filing through the South Carolina Public Service Commission.

(Reference South Carolina Code of Laws 58-39-120 and 58-39-130)

Hydrogen Fueling Infrastructure Permitting and Safety

Individuals or entities must submit an application and pay a $10 fee to the State Fire Marshall or a certified designee before renovating or constructing a facility to store or dispense hydrogen fuel. The South Carolina State Fire Marshall must ensure that the state laws governing hydrogen fueling infrastructure are executed faithfully; require compliance with nationally recognized fire prevention and protection standards for hydrogen fueling infrastructure; develop training and certification requirements for county and municipal officials to permit hydrogen fueling infrastructure; develop minimum requirements for the design, construction, location, installation, and operation of equipment for storing, handling, and dispensing hydrogen; and perform random inspections of licensed fueling infrastructure.

(Reference South Carolina Code of Laws 23-9-20 and 23-9-510 through 23-9-570)

Alternative Fuel Vehicle Fee

Owners of plug-in electric vehicles and fuel cell electric vehicles must pay a biennial fee of $120, in addition to standard registration fees. Hybrid electric vehicle owners must pay a biennial fee of $60.

(Reference South Carolina Code of Laws 56-3-645 and 12-28-110(39))

Idle Reduction Requirement

Vehicle operators may not idle any commercial diesel vehicle with a gross vehicle weight rating of more than 10,000 pounds for more than 10 minutes in any one-hour period. Exemptions apply for the following: traffic conditions; prevention of safety or health emergencies; emergency or law enforcement; maintenance, service, repair, or diagnostic purposes; state or federal inspections; power work-related operations; loading or unloading; sleeper berth temperature control during 1) rest or sleep periods, 2) times when the ambient outside air temperature is less than 40 degrees Fahrenheit or greater than 80 degrees Fahrenheit, or 3) at rest areas, terminals, truck stops, or legal parking locations greater than 500 feet from homes, schools, hospitals, or daycare facilities. Violators are subject to a $75 fine for each offense. A portion of the fine will go towards the Diesel Idling Reduction Fund operated by the South Carolina Department of Health and Environmental Control to develop an idling awareness program.

(Reference South Carolina Code of Laws 56-35-10 through 56-35-80)

Biodiesel Blend Distribution Mandate

All state-owned diesel fueling facilities must provide fuel containing at least 5% biodiesel (B5) at all diesel pumps.

(Reference South Carolina Code of Laws 12-63-30)

State Agency Preference for Alternative Fuel and Advanced Vehicles

State agencies purchasing motor vehicles must give preference to hybrid, plug-in hybrid electric, biodiesel, hydrogen, fuel cell, or flexible fuel vehicles when the performance, quality, and anticipated life cycle costs are comparable to other available motor vehicles.

(Reference South Carolina Code of Laws 1-11-310)

Biodiesel Use in School Buses

The South Carolina Department of Education must fuel state school bus fleets with biodiesel when feasible.

(Reference South Carolina Code of Laws 59-67-585)

Propane Safety and Liability

An individual involved in installing propane systems or manufacturing, distributing, selling, storing, or transporting propane is immune from the civil liability associated with injury or damage associated with these activities, as long as the individual was exercising reasonable care and took steps to warn the end user of the misuses of the propane system.

(Reference South Carolina Code of Laws 15-3-690, 40-82, and 40-82-270)

Low-Speed Vehicle Access to Roadways

A low-speed vehicle is defined as a four-wheeled motor vehicle, other than an all-terrain vehicle, that is capable of reaching speeds of at least 20 miles per hour (mph) but not greater than 25 mph, has a gross vehicle weight rating of less than 3,000 pounds, and meets the safety standards in Title 49 of the U.S. Code of Federal Regulations, section 571.500. A low-speed vehicle may only operate on secondary highways with a posted speed limit of up to 35 mph but may cross a highway with posted speed limits over 35 mph at an intersection. A low-speed vehicle must be registered and licensed in the same manner as a passenger vehicle and is subject to the same insurance requirements applicable to other motor vehicles. Homemade low-speed vehicles, retrofitted golf carts, or any other similar vehicles do not qualify as low-speed vehicles.

(Reference South Carolina Code of Laws 56-1-10, 56-2-100 to 56-2-130, and 56-5-820)

Public Utility Definition

An entity that operates an electric vehicle (EV) charger is not considered a public utility. Electricity must be procured from authorized electric utility, and the EV chargers must be immobile.

(Reference South Carolina Code of Laws 58-27-1060)

Electric Transportation Impact Studies

The Joint Committee on the Electrification of Transportation (Committee) must study the challenges and opportunities associated with transportation electrification and make recommendations to the General Assembly. The Committee must investigate the following areas:

• The environmental, economic, and customer challenges associated with electric vehicles (EVs);
• The potential value of advancing the development and deployment of EVs and associated infrastructure; and,
• The impacts of EVs on current infrastructure, customers, utilities, and electricity grid.

The South Carolina Department of Revenue must provide an annual report to the Committee on the prior fiscal year’s revenue collection for the repair, maintenance, or improvements to the South Carolina transportation system.

(Reference South Carolina Code of Laws 58-27-260)

Transportation Electrification Utility Impact Study

No earlier than April 1, 2023, the Public Service Commission (PSC) must open a docket for the purpose of identifying the regulatory challenges and opportunities associated with transportation electrification, including:

• Grid integration and modernization efforts;
• Regulatory policies to support efficient and cost-effective transportation electrification;
• Data management and coordination;
• Grid investments to support electric vehicle (EV) deployment;
• Increased EV adoption and the development of their charging infrastructure; and,
• Rate design and load management strategies.

The PSC must also submit reports on a triennial basis to the Joint Committee on the Electrification of Transportation on regulatory issues related to transportation electrification.

(Reference South Carolina Code of Laws 58-27-265 and South Carolina PSC Docket No. 2023-121-E)

Electric Transportation Stakeholder Group

The South Carolina Office of Regulatory Staff (ORS) must engage stakeholders to explore opportunities to advance transportation electrification and identify potential challenges. Regulatory staff must work with private and public sector stakeholders to examine the legislative and regulatory environmental, economic, and customer challenges and opportunities. ORS must submit a report on opportunities to advance transportation electrification to the Joint Committee on the Electrification of Transportation on a bi-annual basis.

(Reference South Carolina Code of Laws 58-27-270)

Electric Vehicle (EV) Infrastructure Deployment Support

The South Carolina Department of Transportation (SCDOT) must convene an Interagency EV Working Group (Working Group) to develop a comprehensive plan for the deployment of EV-related resources and infrastructure. The plan must provide recommendations for the deployment of EV charging infrastructure, prioritizing locations along the interstate highway system and in rural areas. The Working Group must also identify funding streams and evaluate potential implementation methods.

(Reference Executive Order 2022-31)

Electric Vehicle (EV) Deployment Support

The South Carolina Department of Commerce (Department of Commerce) established the South Carolina EV Economic Development Initiative (Initiative) to support the EV industry in South Carolina. The Initiative must create and implement a strategic approach to identify, encourage, and incentivize EV research, development, and production in South Carolina. The Initiative must also collaborate with the Interagency EV Working Group to develop a comprehensive statewide EV deployment plan. For more information, see the Department of Commerce’s SCpowersEV website.

(Reference Executive Order No. 2022-31)