Solar Financing in Charleston, SC

Cash or a solar loan for a Charleston system

Cash avoids interest and dealer fees and gives the cleanest claim to the state credit.

The trade-off on the coast is liquidity: a homeowner who empties savings for panels has less on hand for a hurricane deductible.

A solar loan keeps cash free, but the credit does not arrive as a lump sum to pay it down.

Each year you can claim the lesser of $3,500 or half your state liability, so plan the loan around that pace, not around a promised “tax credit payment”.

Some solar loans assume you will pay a set amount down within the first 12 to 18 months and re-amortise the payment higher if you do not. That design was built around the federal credit, which no longer exists for homeowners. Ask whether a Charleston quote still carries one.

Home equity and HELOCs in Charleston

Charleston’s home values make equity borrowing an obvious option: the Census Bureau’s 2024 one-year estimate put the median owner-occupied home at $600,300, and the median household income at $98,085.

A home equity loan usually carries a lower rate than an unsecured solar loan because the house secures it, and a HELOC adds flexibility.

The cost is that missed payments put the home at risk, and closing costs can make equity borrowing poor value on a small system.

Check whether your lender treats a flood-zone property differently before you apply.

Solar leases and why PPAs are off the table in Charleston

Lessors need a certificate from the Office of Regulatory Staff, one premises per lease, and the customer owns the output.

Third-party sales of electricity from a system on your property (power purchase agreements) are not permitted. Act 62 removed the old leasing cap.

A lessee gives up the state credit, and Dominion’s programs chart notes that a leased system follows the lease contract when you sell the house, which a buyer’s lender will want to read. Ask any lessor for its Office of Regulatory Staff certificate.

If a seller in Charleston offers to sell you the electricity from panels it owns on your roof at a per-kilowatt-hour price, that is a power purchase agreement and it is not permitted in South Carolina. Walk away. Lease or buy calculator.

Dealer fees: the cost hidden in a Charleston solar loan price

A low advertised APR is often paid for by a dealer fee the lender charges the installer, who adds it to the system price.

If a company quotes $20,000 cash and $25,000 financed for the same system (example figures), the $5,000 difference is a 20% fee inside the loan, and you pay interest on it for the whole term.

It also inflates the contract price the City uses to calculate your permit fee. Ask for both prices in writing, and check the gap with the dealer fee calculator.

How interest changes solar savings on a Dominion bill

Under Solar Choice, your monthly saving comes mostly from energy used at home at the Rate 5 price of its hour, while the basic facilities charge and $13.50 minimum bill stay.

If a loan payment is larger than that monthly saving, you are cash-flow negative until the loan is paid off, however good the lifetime numbers look.

Compare the payment with a realistic Rate 5 bill reduction, not with your old Rate 8 bill.

The per-period values are on solar cost in Charleston; adding storage to a loan is weighed on solar battery storage in Charleston; and the credit’s rules are on solar incentives in Charleston.