Compare two home solar proposals
Record what each written proposal includes and the assumptions behind its estimates. Keep missing or unclear details marked as unknown, then ask each installer to clarify them in writing.
Compare the same scope and capacity basis. Keep forecast output and written warranty conditions beside the equipment specifications.
Swipe the table sideways to view both proposal columns, or use the print button below.
| What to compare | Proposal A | Proposal B | Questions to clarify |
|---|---|---|---|
| EquipmentNamed panels, inverters and written specifications; rated panel capacity. | |||
| Included workElectrical work, roof attachments, permits, utility application and exclusions. Who handles each item? | |||
| Price and cost per wattTaxes and installed scope; the capacity basis used. Differing inputs make the figures difficult to compare. | |||
| Forecast productionEstimated annual energy and roof, shade and usage assumptions. Forecast output is an estimate. | |||
| Warranty categoriesProduct, panel performance and workmanship coverage; written conditions and responsible parties. | |||
| Timing dependenciesEquipment, roof work, inspection and utility approval; which dates or details need confirmation? |
Open questions / planned property or electrical changes:
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