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Solar installation estimator template

Show homeowners two rooftop solar packages priced from the system size they enter. Roof type, shade, building height, panel upgrades and battery storage are handled your way. Prices are shown before incentives and rebates.

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Try it as a customer would

Sunward Solar (sample business) Sample result: 8 kW system on a two-storey asphalt shingle roof with some shade, 200 A panel, no battery Before tax
Standard panels $22,900 CAD
Design, permits and grid connection · $3,500 Panels, inverter and racking installed (per kW) · $18,400 Panel optimizers for partial shade (per kW) · $960
Premium panels $25,900 CAD
Design, permits and grid connection · $3,500 Panels, inverter and racking installed (per kW) · $22,400 Panel optimizers for partial shade (per kW) · included

Fictional business and sample prices. Preliminary estimate based on the answers; final pricing follows an assessment.

Questions included

  1. System size (kW) “I don't know” → asks for an assessment
  2. Roof type Asphalt shingle Metal Tile Flat
  3. Building height 1 storey · 2 storeys · 3 or more
  4. Shade on the roof where the panels would go Little or none Some, for part of the day Heavy shade from trees or buildings “I don't know” → shows a price range
  5. Electrical panel size 200 A or more · 100 A or an older panel (needs an upgrade) “I don't know” → shows a price range
  6. Add battery storage? Yes · No

Prices you supply

  • Design, permits and grid connection Your installed price for each package
  • Panels, inverter and racking installed (per kW) A price for each one
  • Flat-roof racking (per kW) A price for each one
  • Panel optimizers for partial shade (per kW) A price for each one; included in Premium panels
  • Access for 3+ storeys A fixed extra when it applies
  • Electrical panel upgrade A fixed extra when it applies
  • Battery storage A fixed extra when it applies
  • Minimum job priceNo estimate shows less (sample: $10,000)
  • Assessment rule: Tile roofTile roofs need special mounts and careful handling. We'll assess the roof first.
  • Assessment rule: Heavy shadeHeavy shade can make solar a poor fit. We'll review the site before pricing.

How the price is worked out

Each package has an installed rate per kW for panels, inverter and racking. In the sample, that's $2,300 per kW for Standard panels and $2,800 per kW for Premium panels. Design, permits and grid connection add $3,500. An 8 kW system on a two-storey asphalt shingle roof with some shade adds optimizers at $120 per kW to Standard; Premium already includes them. Totals are rounded to the nearest $100. That gives $22,900 and $25,900 before tax.

Incentives, rebates and tax credits are not included, and the estimate says so. If the customer doesn't know the system size, the estimate asks for an assessment. If they're unsure about shade or their electrical panel, it shows a range.

What you can change

  • Packages and every rate per kW.
  • Which roof types you price, and which need a visit.
  • Shade, access, panel upgrade and battery prices, and what each package includes.
  • Your minimum job price and rounding.

What still needs your assessment

Roof structure, panel layout, energy production and utility connection rules. The estimate shows its assumptions and says the price is preliminary.

Putting it on your website

Build, test and publish your first estimator free, for as long as you like. Unlimited estimators are $35 a month in the US or $45 CAD in Canada (pricing). Add it to your website with a short embed code, or share a hosted link.

Use this template free

Used by: solar installers.