South Carolina Electric Utilities Comparison

South Carolina benefits from diverse generation including nuclear power, with utilities investing in solar and other renewable resources.

Lowest Rates

Duke

~13.8¢/kWh

Highest Rates

Dominion

~14.2¢/kWh

Total Customers

1.55M

across 2 utilities

Key Factors in South Carolina

Nuclear power, diverse generation, coastal challenges, and solar growth.

South Carolina Utilities by Rate

#1
Duke Energy Carolinas
Upstate South Carolina800,000

12-15¢/kWh

Duke Energy (investor-owned)

Advantages

  • Reliable service
  • Nuclear generation
  • Customer programs
  • Regional coverage

Considerations

  • Nuclear costs
  • Coal transition
  • Summer peaks
#2
Dominion Energy South Carolina
Columbia and coastal South Carolina750,000

13-16¢/kWh

Dominion Energy (investor-owned)

Advantages

  • Diverse generation
  • Coastal coverage
  • Customer programs
  • Growing renewables

Considerations

  • Higher rates
  • Nuclear costs
  • Hurricane exposure

Key Factors in South Carolina

Nuclear Power

A significant portion of the state's electricity is generated from nuclear power, providing reliable, carbon-free energy but also involving high costs and long-term waste management challenges.

Diverse Generation

Utilities are diversifying their energy sources, including natural gas and renewables, to improve grid resilience and reduce dependence on single fuel sources.

Coastal Challenges

Coastal areas face unique challenges, including hurricane risks and the need for resilient infrastructure, which can impact electricity rates and reliability.

Solar Growth

South Carolina is experiencing significant growth in solar energy, with utilities and homeowners increasingly adopting solar panels to lower costs and reduce environmental impact.

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