The Good, the Bad, and the Ugly of Solar Under $250 a Month

The good: A manageable payment can produce real savings

Financing can make solar possible without paying the entire purchase price upfront. A suitable system and a well-structured agreement can reduce your overall electricity expenses. A purchase loan is different from a lease or power purchase agreement (PPA), where another company generally owns the equipment. [1]

Consider a hypothetical household paying an average of $300 a month for electricity. If solar costs $150 a month and the remaining utility bill averages $70, the combined expense is $220. That leaves $80 a month, or $960 a year, in potential savings if those averages hold.

These are arithmetic examples, not a forecast for your home. Compare a full year of electricity expenses, using matching billing periods and separating electricity from unrelated charges. Ask the proposal to show how your own usage and the estimated solar production support its numbers.

The bad: Small monthly payments become large commitments

A fixed $150 monthly payment for 25 years adds up to $45,000: $150 × 12 × 25. At $200 a month, the total reaches $60,000. At $249—still under $250—it reaches $74,700.

The comparison below uses 300 identical monthly payments. It excludes down payments, separate lump-sum payments, annual increases, remaining utility bills and additional expenses. The amounts are total scheduled payments, not necessarily the equipment’s cash price. Do not add loan interest again if it is already included in the payment.

A $45,000 total does not automatically make solar a bad deal. You would otherwise be buying electricity during those years, too. Compare the projected total cost with solar against the projected total without it, using the same time period and clearly stated assumptions.

Ask for a conservative scenario as well as the sales estimate. What happens if production is lower, you use more electricity, or future utility prices rise more slowly than the proposal assumes? A plan that only looks affordable under the most optimistic assumptions deserves another look.

The ugly: The advertised payment may not tell the whole story

Some agreements include annual increases. Some loans raise the payment unless you make a substantial prepayment. In its 2024 investigation, the Consumer Financial Protection Bureau documented financing markups that could inflate loan balances well above the cash installation price. These are risks in some offers, not a description of every solar company. [2]

An introductory or estimated $150 payment is different from a guaranteed fixed payment. For a PPA, ask for the price per kilowatt-hour and the expected billing quantities; an estimated monthly cost should not be treated as a fixed installment.

Remaining electricity costs matter. The CFPB also identified misleading promises about eliminating electric bills; actual results depend on location, season and the household’s circumstances. Selling your home can require addressing an outstanding loan or contract. [2]

Here is the unfavorable version of our example: your current electricity expense averages $180 a month. A $150 solar payment plus $70 in remaining utility costs brings your combined expense to $220. The advertised payment is lower than your old bill, but the total is $40 higher.

What to ask before signing

Ask whether you are buying equipment, leasing it or purchasing the electricity it produces. Request the cash installation price, financed amount, interest rate, term, total scheduled payments and every required upfront or later lump-sum payment.

Ask whether the monthly payment or PPA rate increases, how often, and by how much. Request the complete payment schedule. Have any assumed incentive listed separately rather than presented as money you have already received.

Ask what equipment and services are included. Is there a battery? Who handles repairs, monitoring and warranty claims? What happens if the roof needs work? Request the transfer, buyout and end-of-term terms before assuming ownership or an easy exit.

Compare several written proposals and financing options. The CFPB recommends asking for the cash price and an itemized breakdown so the financing offer can be evaluated alongside the installation itself. [3]

Before agreeing to $150 a month, understand the $45,000 decision

A payment under $250 may fit your budget. Whether the agreement fits your home depends on the complete cost, the energy it produces and the obligations you accept.

Put the solar payment and remaining electric bill together. Then compare the full contract against the cash price and other financing choices. You should be able to explain the offer in your own words before you sign it.

Home Solar Simplified helps homeowners learn the questions to ask and compare the full picture at their own pace. Start with the related financing and proposal-review guides below.

Frequently asked questions

Questions worth asking

• Is the $150 payment fixed for the full term?
• What will I still pay my utility?
• What is the cash price and the full scheduled payment total?
• What happens when I sell my home or need roof work?