Start Your Solar Research for Free: A Homeowner’s Step-by-Step Roadmap

Start with your electricity use and roof

Before requesting installation quotes, you can learn the basics of home solar and see what the numbers might look like. A preliminary estimate is not a contract, an engineering design, or a promised savings amount. It is a starting point for better questions. The U.S. Department of Energy recommends assessing roof suitability, expected production, and installer options before choosing a system.

Tower Solar LLC is a for-profit solar education and equipment business. Its online guides, calculator and proposal self-check are free to use. Equipment purchases are optional.

Step 1: Get a free solar estimate without a phone number

Open the free solar calculator at https://towersolar.net/#estimate-form. Enter a property address and a typical monthly electricity bill to see estimated system size, production, and illustrative cash and financing figures. The calculator asks for no name, phone number, or email. For a more useful estimate, add 12 months of electricity use in kilowatt-hours if you have it.

Pay attention to assumptions. Roof shade, usable roof area, utility prices, financing terms, and actual equipment will affect the final design. An estimate that looks attractive on a screen still requires site and utility verification.

Step 2: Learn how to compare solar quotes

A system’s power is measured in kilowatts (kW); energy produced or consumed is measured in kilowatt-hours (kWh). When comparing offers, ask for first-year production, equipment model numbers, total installed cash price, warranty responsibilities, and utility interconnection steps. The Department of Energy recommends comparing installer reputation and pricing rather than deciding from a single offer.

Tower Solar’s plain-language learning center at https://towersolar.net/solar-guides explains sizing, net metering, batteries, leases and loans, and common proposal red flags.

Use the solar quote comparison checklist at https://towersolar.net/compare-solar-quotes. Divide the installed cash price by the system size in watts to compare price per watt. Compare battery-inclusive quotes separately, and check that the proposals use similar assumptions about production and electricity rates.

Step 3: Check the proposal before signing

If a quote arrives with a tempting monthly payment, compare it to the underlying cash price, loan amount, APR, fees, and total scheduled payments. A lower monthly payment can reflect a longer loan rather than a cheaper system. Be wary of anyone promising zero electricity bills or pressuring you to sign immediately; the Federal Trade Commission warns about misleading free-solar offers and high-pressure sales tactics.

At https://towersolar.net/solar-proposal-checker you can run a private, free self-check on proposal numbers. A free initial human review is also available if you choose to submit a redacted proposal. Before uploading, remove signatures, account numbers, Social Security numbers, and other sensitive information.

Step 4: Verify official forms and local rules

Building permits, utility interconnection, and tax documents serve different purposes. The required paperwork depends on your location, electric utility, ownership arrangement, and current program rules. Do not assume a form or a sales presentation guarantees an incentive or tax benefit.

Tower Solar maintains an educational forms-and-resources starting point at https://towersolar.net/solar-resources, including federal documents and selected state and utility materials. Verify the latest requirements with the appropriate government office, utility, and qualified tax adviser before relying on them.

For local cost factors, start with the Pennsylvania guide at https://towersolar.net/solar-panels-pennsylvania, the New Jersey guide at https://towersolar.net/solar-panels-new-jersey, or the Florida guide at https://towersolar.net/solar-panels-florida. Compare your utility’s rate and export credit, roof work, and the installed cash price. Ask installers to show those items in writing.

Step 5: Decide whether to buy, request quotes, or wait

You can use the free tools without committing to installation, equipment purchases, or a sales conversation. If you want a verified quote, choose qualified local installers, ask for multiple written proposals, and check licenses and references. If solar does not fit your roof or finances, doing nothing for now can be a sound decision.