Generation is the amount of electricity produced over a specific period of time, measured in watt-hours (Wh). For example, a generator with 1 MW (1 million watts) capacity that operates at that capacity consistently for one hour will produce 1 MWh of electricity.
Electricity generated in South Carolina is not necessarily consumed in the state. South Carolina has two multi-state utilities (Duke Energy Carolinas and Duke Energy Progress) that share the electricity generated in both South Carolina and North Carolina among their customers in the Carolinas. Therefore, the generation fuel mix does not solely represent the consumption by South Carolina customers, due to electric resources being shared across both states. The pro rata share data represents the portion of electricity consumed in South Carolina.
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Table 1
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Dominion Energy South Carolina
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2019 Generation (MWh)
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Fuel
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Total MWh
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| Coal |
5,599,617 (24%)
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| Biomass |
--
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| Combustion Turbines- Natural Gas and Oil |
27,275 (0.1%)
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| Natural Gas- Boiler and Combined Cycle |
11,825,161 (50%)
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| Pumped Storage |
473,908 (2%)
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| Hydro |
288,175 (1%)
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| Solar* |
3,096 (0.01%)
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| Nuclear |
5,502,476 (23%)
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Total
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23,719,708
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*This line reflects company-owned solar only. The total amount of company-owned and purchased solar is 869,361 MWh.
Table 2
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Santee Cooper
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2019 Generation (MWh)
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Fuel
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Total MWh
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| Coal |
9,126,240 (50%)
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| Biomass |
58,948 (0.3%)
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| Combustion Turbines- Natural Gas and Oil |
1,734,213 (10%)
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| Natural Gas- Boiler and Combined Cycle |
3,847,943 (21%)
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| Pumped Storage |
--
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| Hydro |
591,823 (3%)
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| Solar |
4,704 (0.03%)
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| Nuclear |
2,745,969 (15%)
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Total
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18,109,830
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Table 3
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Duke Energy Carolinas
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2019 Generation (MWh)
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Fuel
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Total MWh
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| Coal |
5,963,250 (22%)
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| Biomass |
--
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| Combustion Turbines- Natural Gas and Oil |
286,550 (1%)
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| Natural Gas- Boiler and Combined Cycle |
3,783,874 (14%)
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| Pumped Storage |
--
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| Hydro |
630,216 (2%)
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| Solar |
--
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| Nuclear |
16,426,900 (61%)
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Total
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27,090,790
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Table 4
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Duke Energy Progress
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2019 Generation (MWh)
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Fuel
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Total MWh
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| Coal |
1,362,708 (16%)
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| Biomass |
--
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| Combustion Turbines- Natural Gas and Oil |
97,318 (1%)
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| Natural Gas- Boiler and Combined Cycle |
2,906,232 (34%)
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| Pumped Storage |
--
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| Hydro |
95,629 (1%)
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| Solar |
35,855 (0.4%)
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| Nuclear |
4,075,921 (48%)
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Total
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8,573,663
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DOWNLOAD DATA ARCHIVE: Generation: Duke Energy Progress 2016-2019