Path-Q Solar
What assumptions in a solar quote deserve independent verification?
Answer
Independently verify the site's usable roof area and shading, expected production, electricity-use assumptions, export compensation, equipment ratings, degradation, total price, incentives, financing terms, permit and upgrade scope, and warranty coverage. The more a quote depends on current rates or local approvals, the more important written external confirmation becomes.
Key points
- Check production against an independent model or credible site analysis.
- Compare modeled consumption with actual bills and realistic future changes.
- Verify utility rates, export rules, incentives, and eligibility from authoritative sources.
- Confirm every excluded item that could become a change order.
What it depends on
- Quality of the installer’s site survey and model
- Actual household usage and future load
- Current utility and financial terms
- Contract scope and equipment documentation
Risks and trade-offs
- Optimistic production or rate assumptions can materially inflate savings claims.
- Financing can make a modest system appear affordable while increasing total cost.
- Independent verification takes time and may reveal that quotes are not directly comparable.
Information you may need
- Recent electricity bills and interval data if available
- Production model, shading report, and equipment data sheets
- Current utility and incentive documentation
- Full contract, financing, exclusions, and warranty terms
Your next step
What to do next
Create an assumptions checklist and verify each material item against bills, utility documents, equipment records, or an independent technical review before signing.
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