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The homeowner’s library

Solar proposal
and contract guides.

Practical guides to the numbers, assumptions, and fine print in your solar proposal.

8 articles to explore

Quote economics

How to review a solar quote before you sign

A plain-language walkthrough of price, production, savings, equipment, and financing on a residential solar proposal.

5 min read · October 26, 2026
Contract terms

Solar contract red flags before signing

A non-legal checklist of solar contract terms homeowners should understand: equipment swaps, payments, cancellation, and end-of-term options.

4 min read · October 26, 2026
Quote economics

Solar price per watt: what it misses

Calculate solar price per watt, separate batteries and financing, and compare equivalent quote scope with worked examples and a practical worksheet.

3 min read · October 26, 2026
Quote economics

Solar dealer fees and the cash vs. financed price

Understand solar dealer fees, compare cash and financed prices, and ask for the loan costs behind the monthly payment.

3 min read · October 26, 2026
System and production

How to read a solar production estimate

Check a solar production estimate using system size, roof direction, shade and model inputs. Learn which questions separate energy forecasts from savings.

3 min read · October 26, 2026
System and production

Solar warranty checklist for homeowners

How to read equipment, workmanship, and extra paid warranties on a residential solar proposal.

3 min read · October 26, 2026
Contract terms

Questions to ask before signing a solar contract

A printable list of questions for a solar sales representative covering price, production, equipment, financing, and the contract.

3 min read · October 26, 2026
System and production

Why solar proposals show different savings

Two solar quotes can disagree on monthly savings for reasons that have nothing to do with which installer is “more honest.” Here is how the assumptions diverge.

4 min read · October 26, 2026

Put clarity into practice.

When you are ready, bring the proposal you have for an independent second read.

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