Direct purchase
Upfront cash payment: This payment option is often the simplest. You pay for the whole system upfront, which offers the most savings over time because you own the system outright from day 1—and start saving from day 1, too.
The total cost of a solar energy system depends on factors such as your home's energy needs, system size, equipment, and location. Since you own the system outright, every dollar you save on your electricity bills contributes toward your payback period—the time it takes to recover your initial investment. While many homeowners recover their investment within approximately 6–12 years, the exact payback period depends on factors such as electricity rates, system performance, energy usage, and available state or local incentives.
A cash purchase no longer comes with a federal tax credit (Section 25D), but state, local, and utility incentives may still apply—check DSIRE or SEIA to check applicable incentive programs, or ask your installer what's active in your area.
Solar loans: This payment method involves getting a loan through your bank or another lender. Many solar loans are offered at $0 down, so you can get your system with little to no upfront down payment. Some solar loans are structured with an optional lump-sum payment after installation that can be applied toward the loan balance. If that payment isn’t made, monthly payments may increase, depending on the loan terms. Loan structures and timing vary by lender, so it’s important to review how incentives or expected savings are factored into your specific loan agreement.
Interest rates vary on loans based on the term (how many months or years you want to take to repay it) and where you get your loan. Typically, the monthly loan payment is lower than the amount you’ll save on your electricity with a system, which means you can start enjoying savings immediately. There are often additional costs with financing, mainly the interest on the loan and any built-in fees that allow for lower interest rates, which add cost to the system and may impact your payback period. Shorter terms with higher monthly payments tend to have higher ROI because you’ll ultimately pay a lower amount of interest over the term of the loan.
Solar loan sources: There are several sourcing options to get a loan for your solar system. Most common are specialized solar lenders with which your installer may have existing relationships. These solar lenders will typically provide you with a response to your solar loan in seconds, and most will run a soft credit check. Alternatively, some credit unions and banks offer loans designed for solar.
Other loan alternatives: There are multiple alternatives to solar loans. The most common is taking out a personal loan, which you can get from any bank, credit union, or national lending institution. Taking a home improvement loan is also another option. This is particularly useful if the solar project is part of a bigger renovation of your home. Home equity loans and Home Equity Lines of Credit (HELOC) are other alternatives where the lending institution will provide you with a loan or access to funds using the equity in your home as collateral. You then repay that money like you would any other loan.
Property Assessed Clean Energy (PACE) financing is another option, which adds the cost of the system repayment to your annual property tax bill over time. All the above options can take longer to get approval, and eligibility can vary depending on your personal circumstances.
The 30% federal residential solar tax credit expired (Section 25D) for residential solar systems installed after December 31, 2025, so homeowners who buy with cash or a loan can no longer claim it. That doesn't mean all incentive opportunities are gone. Certain prepaid solar lease programs may still help reduce the overall cost of going solar. State and local incentives may also be available depending on where you live.
