The federal energy tax credits have expired
Costs and payback figures on this page may still assume a federal credit that no longer exists. The 30% Residential Clean Energy Credit (25D) and the Energy Efficient Home Improvement Credit (25C) both ended for property placed in service after 31 December 2025, and the home EV charger credit (30C) ended after 30 June 2026. Assume no federal credit on work done today.
What expired, and what still exists →Is Electrification Worth It in South Carolina?
Charleston: 2,000 heating degree days, 1,800 cooling degree days, and Duke Energy.
You barely heat. You run AC 7-8 months. Most South Carolina homes already have heat pumps—they've been the default since the '80s. Electricity costs $0.13/kWh. Natural gas is around $1.50/therm, but a lot of homes don't have gas service anyway.
If your heat pump is 15+ years old, upgrade it. Modern variable-speed models use 30-40% less energy for cooling, which matters a lot when you're running AC 7 months. That's $350-600/year in savings. Add solar (9-year payback in SC) and you're looking at $1,200+ annual energy savings total.
What Do Energy Costs Look Like in South Carolina?
Here's the real data from EIA (Energy Information Administration). These are the rates that determine whether electrification makes financial sense.
Visual ROI Analysis
Payback Period Comparison
Lower is better • Shortest payback = fastest return on investment
Annual Savings Comparison
Higher is better • More annual savings = greater long-term benefit
Cumulative Net Savings Over Time
Point where line crosses $0 = payback achieved • Steeper line = faster savings growth
Which Upgrades Pay Off the Fastest?
The economics are broken down for each major upgrade. Pay attention to the payback period—that's how long until savings equal your net cost.
Heat Pump HVAC
Solar Panels
Heat Pump Water Heater
EV Charger + Electric Vehicle
Should You Go All-In?
Here's what it costs to electrify everything at once—heat pump HVAC, solar panels, heat pump water heater, and EV charger. The upfront cost is high, but so are the savings.
Best ROI for South Carolina
Based on your state's energy costs and climate, EV Charger offers the best return on investment with an average payback of 1.4 years and an ROI of 1460%.
0.0 years slower than average compared to the national average.
Ready to electrify your South Carolina home?
Get free quotes from local contractors who specialize in heat pumps, solar, and electrification.