South Carolina Public Service Authority and solar
South Carolina Public Service Authority is a state-owned utility serving about 188,962 homes in South Carolina. Here's what its rates and export rules mean for solar: for a typical customer, solar is a close call.
- Average price (2026 est.)
- 13.4¢15% below South Carolina average
- Typical bill
- $128959 kWh a month
- Exports credited
- ~30%Varies by utility
- Typical payback
- 13.6 yrs6.3 kW, cash
Export rules for South Carolina Public Service Authority customers
Varies by utility, monthly netting.
DG Rider; 20 kW residential cap; standby and metering fees eliminated with April 2025 rates; modified customer charge.
Solar for a typical South Carolina Public Service Authority home
| System | 6.3 kW (80% of 959 kWh/month) |
|---|---|
| Cost | $18,935, $15,435 after incentives |
| First-year savings | $1,206 |
| Payback | 13.6 years |
| 25-year net | $15,038 |
Uses the utility's average price.
Solar adoption
- Homes with solar (2025)
- 1,954
- Share of customers
- 1.0%
- Residential solar capacity
- 13 MW
- Residential customers
- 188,962
EIA-861, 2025.
Questions about South Carolina Public Service Authority and solar
Does South Carolina Public Service Authority have net metering?
DG Rider; 20 kW residential cap; standby and metering fees eliminated with April 2025 rates; modified customer charge.
How much does electricity cost with South Carolina Public Service Authority?
Residential customers paid an average of 12.9¢ per kWh in 2025 (EIA), about 13.4¢ adjusted to 2026. The typical home uses 959 kWh a month, a bill of about $128.
Is solar worth it with South Carolina Public Service Authority?
For a typical customer, solar is a close call: a 6.3 kW system costing about $15,435 pays back in about 13.6 years, with $15,038 net over 25 years.
How many South Carolina Public Service Authority customers have solar?
About 1,954 homes had net-metered solar at the end of 2025, roughly 1.0% of residential customers (EIA-861).
Legal name: South Carolina Public Service Authority (EIA ID 17543). Data: EIA-861 2025 and monthly data through 2026, state policy research October 2026.