The Short Answer
Short Answer: Before an audit or upgrade, create a dated evidence packet containing 12–24 months of utility consumption, rate codes, fuel deliveries, room comfort/moisture symptoms, existing equipment model and serial numbers, photos, permits, ownership/occupancy evidence, and the official program rules. Do not sign, buy, demolish, or install until you know whether the program requires enrollment, income verification, a pre-work audit, approved contractor, qualifying model, reservation, or pre-approval.
During the project, preserve change orders, material labels, hidden-work photos, test results, and inspection records. Afterward, collect paid itemized invoices, proof of payment, model/serial and certification records, commissioning, test-out, disposal evidence where required, warranties, and the final application. Then compare weather- and occupancy-aware energy and comfort results with the baseline.
The Evidence-Packet Workflow
Create these folders before contacting contractors:
- 00-program-rules - official pages/PDFs, effective date, contacts;
- 01-baseline - bills, fuel, weather, occupancy, symptoms;
- 02-existing-condition - labels, photos, plans, permits;
- 03-audit - auditor credentials, scope, readings, report;
- 04-quotes - normalized proposals and exclusions;
- 05-preapproval - application, reservation, eligibility notice;
- 06-construction - contract, changes, product labels, hidden work;
- 07-commissioning - test-out, permits, inspection, training;
- 08-payment-application - invoices, receipts, proof of payment;
- 09-follow-up - bills, performance, warranty and maintenance.
Use filenames beginning with YYYY-MM-DD. Keep originals read-only and work from copies with account, tax, or identity data redacted when sharing.
Programs Are Local and Time-Sensitive
DOE says Home Energy Rebate availability and rules are administered through participating states, territories, and Tribes, with programs available only in some locations at a given time. Utilities, municipalities, housing agencies, lenders, insurers, tax authorities, and manufacturers may have separate offers.
Do not assume a national summary is an application. For each program record:
| Rule | Verified entry |
|---|---|
| Official program and administrator | |
| Address/customer eligibility | |
| Owner, renter, landlord, or income rules | |
| Eligible project/equipment | |
| Effective and funding dates | |
| Pre-audit/pre-approval/reservation | |
| Contractor/auditor requirements | |
| Product list, efficiency, or model ID | |
| Eligible equipment/labour/permit costs | |
| Combining rebates, financing, tax treatment | |
| Test-out, inspection, disposal | |
| Submission deadline | |
| Payment recipient and timing | |
| Appeal/correction process |
Call only verified administrator contact information. Record date, representative, reference number, question, and answer. Ask for written confirmation when the interpretation changes spending.
Do not assume old federal tax-credit claims remain current
Federal tax law changed after many articles and contractor brochures were published. For example, ENERGY STAR's home-energy-audit tax-credit page states that the referenced credit applied to qualifying costs through December 31, 2025, and the IRS 2025 Form 5695 instructions describe 2025 requirements. A 2026 project should not deduct a 2025 credit from its price unless current IRS law and qualified tax advice establish eligibility.
Save the current IRS form/instructions for the tax year and placed-in-service date. A rebate, point-of-sale discount, refundable credit, and nonrefundable tax credit are not interchangeable cash.
Build a Consumption Baseline
Collect 12 months minimum; 24 months helps identify weather and occupancy variation.
| Energy source | Preserve |
|---|---|
| Electricity | service dates, import/export kWh, demand kW, rate code, fixed/variable charges, interval data |
| Natural gas | therms/m³, heat content if shown, rate, fixed/delivery charges |
| Propane/oil | delivery dates, volume, tank level, unit price |
| Wood/pellets | quantity, moisture/grade if known, cost, supplemental-heating hours |
| District energy | thermal units, demand/fixed charge, meter method |
Record dollars but normalize performance with consumption and weather. A lower post-project bill can come from a warm winter, lower rate, vacancy, or reduced comfort. A higher bill can follow electrification even while total site/fuel energy and emissions change.
Download hourly/15-minute electricity data when available. Preserve raw files and time zone. Do not upload household interval data to an unknown service.