What the total price usually includes
A solar quote should list more than the panels. Typical line items that contribute to the total cost are: - Solar panels: the modules themselves. Different brands and efficiencies affect both price and roof coverage. - Inverter(s): string inverters, microinverters, or power optimizers have different costs and failure risks. - Racking and mounts: hardware that secures panels to your roof or ground mount. - Labor and installation: onsite work, electrical hookups, roof penetrations, flashing and sealing. - Electrical work: wiring, conduit, upgrades to the main panel if needed. - Permits and inspection fees: local building permits, plan reviews, and inspection costs. - Utility interconnection: application fees and any required meter work to connect to the grid. - Soft costs: design, engineering, paperwork, and project management. - Taxes and fees: sales tax where applicable and any local fees. All of these line items can vary by location, roof condition, utility rates, the system size you choose, financing, and installer quality. A low headline price can hide higher costs in one of these categories, so ask for an itemized proposal.
Common extras and hidden add‑ons to watch for
Quotes sometimes leave out items that appear later as change orders. Common extras include: - Roof repair or replacement before installation, or cost to flash around penetrations. - Electrical panel upgrades or main service changes required to meet code. - Tree trimming or site clearing for optimal production. - Battery systems and their separate equipment, installation and permit fees. - Production monitoring subscriptions or ongoing service contracts. - Removal or relocation costs if panels must be taken off for roof work. - HOA review fees or additional engineering for complex roofs. When you compare proposals, ask whether the quote assumes any pre-existing repairs or upgrades and who pays if those are needed. Also confirm which follow-up fees, subscriptions, or maintenance costs are not included.
How to compare solar quotes — the checklist that matters
Comparing quotes is mainly about apples-to-apples detail. Use this checklist when you get proposals from national players like Sunrun, SunPower or Sunnova and from local installers: - System size (kW) and expected annual production: ask how the estimate accounts for shading, tilt and local weather. - Equipment list: panel model, inverter type and any auxiliary gear. - Itemized pricing: separate equipment, labor, permits, and taxes so you can compare components. - Warranties: what the equipment maker and installer cover; ask for the workmanship warranty specifics in writing. - Project timeline and who pulls permits: clear milestones reduce surprises. - Interconnection and inspection responsibilities: who files paperwork with your utility and pays fees. - Financing or ownership structure: loan, cash purchase, lease, or PPA each change ongoing payments and who claims incentives. - Performance assumptions and guarantees: ask how production estimates were generated and whether there are performance guarantees or shortfalls. - Insurance, licensing and references: verify the installer’s license, liability insurance and recent customer references or reviews. Request itemized proposals from at least three installers so you can compare each of these items line by line. Don’t pick solely on lowest price per watt — differences in equipment, warranties and expected production change value.
Next steps: what to prepare before requesting quotes
Before you request proposals, gather a few things to speed up accurate estimates and reduce surprises: - Recent utility bills (12 months if possible) to show seasonal use patterns. - Photos of your roof and notes on shading or roof obstructions. - Any planned roof work or known roof age issues. - Your goals: offset percentage, desire for battery backup, or future EV charging plans. - A timeline for when you want the system installed. When you contact installers, ask for a written, itemized quote that includes equipment models, an expected production estimate, permitting and interconnection responsibilities, and a clear warranty statement. If a company mentions incentives or tax credits, confirm that those depend on your location and eligibility and are not guaranteed.