Solar Quote Comparison Workbook
Match the equipment, ownership terms and energy assumptions before ranking the price.
25 pages · 4 worked cases · 8 worksheets · 40 fillable fields · English PDF · US Letter
£9.99 GBP · One-time purchase.
What you leave with
Complete one matched solar-offer comparison, with unresolved items assigned to the installer, lender or utility. Keep the cash offer, financing agreement, energy model and utility bill scenario distinct.
- Match complete cash scope and retain the original headline price.
- Separate DC capacity, production estimates, guarantees and utility-bill assumptions.
- Reconcile loan payments and compare lease/PPA escalation on an explicit basis.
- Record incentive evidence, service and transfer questions before commitment.
Who benefits?
U.S. homeowners holding actual rooftop-solar proposals. Bring complete installation and payment documents, utility bills and the relevant tariff.
Start free if you only need a quick check
The companion checklist and matched-price example can help without buying anything. The book adds eight reusable record sheets, a complete decision sequence and three more cases.
Scope and overlap
General energy-bill, contractor-scope and budget concepts overlap with existing HomeCostEngine books. No substantive passage or case is reused. The new output is a solar-specific offer packet linking equipment, ownership, modeled energy value, payment obligations and transfer evidence. The free companion article gives a checklist and one cash-scope example; the book adds the complete eight-sheet workflow and three additional cases.
Use the existing energy planning guide for wider upgrade decisions. This workbook is not a system design, lender recommendation, legal contract review, tariff calculator or personalized tax advice.
Inside the actual PDF
- Give each offer a stable identity
- Match DC capacity and included work
- Case 1: the same size, different boundary
- Separate a production model from a promise
- Case 2: equal kWh, unequal value
- Keep the cash offer beside the loan
- Case 3: a lower payment is not a lower total
- Read lease and PPA obligations separately
- Case 4: escalators and energy billing
- Verify a benefit before subtracting it
- Plan for the roof, service and a future sale
- Make a decision record without a false score
Eight reusable worksheets
- Offer identity and ownership map
- Capacity and complete scope comparison
- Production assumptions and guarantee record
- Use, export and utility bill scenario
- Cash and financing disclosure bridge
- Lease and PPA year-by-year schedule
- Incentive evidence and timing register
- Service, transfer and final decision record
Also includes 12 provider questions, source notes and a final decision review. All 40 fields are interactive but do not calculate. Save and reopen your PDF in a compatible reader. Entries stay in your file.
A real example from the book
Invented USD offers both list 8 kW DC. A quotes $22,400 but excludes $2,400 of matched work, making its analysis total $24,800. B includes that scope for $24,000. The $800 difference depends on the stated inclusions; it is not a price benchmark or a savings promise.
Use the free contractor quote comparison tool for general scope checks and PVWatts for production-model context. No model for your home was run in this book.
Real pages from this edition
Verified source context
Primary sources checked October 27, 2026. No source endorses this workbook.
- FTC: Buying, leasing and PPA distinctions; bid and contract-review context. Used for limited general consumer facts, not current tax eligibility.
- CFPB 2024: August 7, 2024 historical report: embedded financing costs and assumed-prepayment risks. Its tax-credit and market data are not current 2026 guidance.
- PVWatts: National Laboratory of the Rockies model: input-dependent energy estimates and explicit uncertainty. No home-specific model run or endorsement is claimed.
- IRS: Current page explicitly excludes property placed in service after December 31, 2025. Used narrowly for that cutoff; individual tax advice is outside scope.
Current IRS guidance says the homeowner Residential Clean Energy Credit is unavailable for property placed in service after December 31, 2025. This book assumes no new homeowner federal credit in its examples. The 2024 CFPB report supplies historical financing-risk context, not current tax guidance.
Price rationale: £9.99 is a test price for the original comparison workflow and reusable records. It is below the queue's initial £12.99 hypothesis; no verified willingness to pay or claim of financial return is made.
Personal use includes printing and sharing completed records with your own providers and advisers. Do not redistribute the blank book.