What uses energy here, which services matter most, and what evidence should guide the next improvement?
Create an inventory of essential services, fuels, devices and operating patterns alongside dated bills and comfort observations. Separate rated-power estimates from measured use. Use a competent assessment to prioritize improvements and preserve assumptions and results for later comparison.
Evidence checked October 16, 2026 (America/Denver). Version 1.0. Desk review; no hands-on testing.
What this guide helps you do
For a household baseline and assessment brief. This guide does not size a generator, battery, circuit or heating system, authorize electrical/combustion testing, predict savings or establish program eligibility.
Inventory services before adding equipment
List the services the household needs: temperature control, hot water, food storage, lighting, cooking, communications and any established care needs. Record each relevant system/device, energy source, usual operating pattern and available manual. Distinguish a service that must continue from a preferred appliance that happens to provide it. Note dependencies such as controls or pumps requiring electricity even when the main heat source is fuel. This inventory supports the later backup-power guide; it is not a capacity calculation.
Separate power from energy over time
EIA distinguishes watts/kilowatts of power from watt-hours/kilowatt-hours of energy. For an illustrative constant 80-watt device running three hours, 80 × 3 ÷ 1,000 = 0.24 kWh. That is an estimate under an assumed constant load, not a measured result. Cycling equipment, varying settings and actual runtime can change consumption. Label every figure by its source: nameplate/rating, assumption, utility interval or measurement. Do not mix a peak power requirement with an annual energy total. Source: EIA electricity power and energy units.
Build a comparable billing and problem file
Gather a useful span of actual bills with dates, billing days, units, usage and fixed/use-dependent charges. Keep electricity and other fuels in their own units until a competent comparison supplies the correct assumptions. Note occupancy, weather, equipment or schedule changes that may explain a difference. Record drafts, condensation, uneven temperatures and recurring equipment issues for the assessor. A changed bill total alone cannot distinguish weather, tariff, billing-period changes and a technical fault.
Agree an assessment scope and written deliverable
DOE’s two-page consumer guide recommends preparing bills and problem observations and obtaining a report of findings and improvement options. Ask the provider what the assessment covers, which qualifications apply and how combustion, pressure, moisture and electrical concerns are handled. Its older DIY depressurization/smoke-test procedure is not adopted here. The surfaced DOE landing link returned 404; the preserved two-page publication supplies a working preparation reference, with dated prices and incentive examples explicitly excluded. Source: DOE consumer guide to home energy assessments.
Use local support and checklists as leads
Boulder County’s EnergySmart page confirms an advising route and English/Spanish services. Confirm actual terms, appointment availability and any proposed incentive directly; no service or rebate was tested here. CSU’s checklist provides useful observation categories across heating, cooling, hot water, appliances and lighting. Its statewide averages, temperature settings, insulation targets and savings examples are not prescriptions for this home. Use the headings to prepare questions, then verify actual instructions and current requirements. Source: Boulder County EnergySmart advising route.
Prioritize, verify and leave a repeatable baseline
Sort proposed actions by the need addressed, evidence of the problem, prerequisites, actual quoted cost, expected benefit and how the result could be checked. Address identified safety or damage concerns through appropriate help before assuming an efficiency upgrade solves them. Keep the assessment’s assumptions, chosen action, installation/service record and follow-up bills or observations. A later comparison should account for weather, use and tariff changes. Retain rejected options and open questions so the next custodian can understand the decision. Source: CSU household energy observation checklist.
A pathway to practice
- Map services and dependencies: People, fuels, devices, essential uses
- Assemble the baseline: Units, bills, assumptions, observations
- Assess and prioritize: Competent scope, actual costs, evidence
- Record and compare results: Actions, changed conditions, handover
Resources and their limitations
EIA electricity power and energy units
Use it for: Distinguish instantaneous demand from energy used over time before interpreting bills.
Access and cost: Public reference freely readable; tests, equipment, professional services and improvements may cost extra.
How to use it: Read Watts/kilowatts and Watthours with an actual bill. Label rated-power estimates separately from metered use.
Evaluation and limits: No meter, device runtime, smart-meter function, household tariff or energy consumption measured. National explanations do not establish local billing permissions or device-level measurement capabilities.
Alternatives: Actual utility bill and meter information; qualified energy assessment and equipment manuals.
Open EIA electricity power and energy units
DOE consumer guide to home energy assessments
Use it for: Prepare problem observations and energy records and ask for a written assessment report.
Access and cost: Public reference freely readable; tests, equipment, professional services and improvements may cost extra.
How to use it: Use Preparing for an Assessment, Professional Home Energy Assessment and After the Assessment to agree scope and deliverables with a qualified provider.
Evaluation and limits: Two-page provider extraction, not original PDF bytes. The 2021 publication’s prices and incentive examples are not current offers. Its DIY depressurization/smoke-test instructions are not adopted; pressure, combustion and electrical testing belong with competent assessment. A surfaced DOE landing page returned 404.
Alternatives: Actual utility or local energy program; qualified assessor and safe observational inventory; CSU checklist as a question list.
Open DOE consumer guide to home energy assessments
Boulder County EnergySmart advising route
Use it for: Find an official starting point for a staged home-energy plan.
Access and cost: Public county gateway readable; advisor terms, assessment charges, funding and improvement costs require direct confirmation.
How to use it: Follow the county’s EnergySmart links and confirm the actual service, language, appointment arrangements, eligibility and current terms.
Evaluation and limits: County endorsement/link verified; service-provider pages, appointments, rebates, eligibility and current availability not independently audited. No application, quote or service used.
Alternatives: Actual utility energy office, qualified assessor or another verified local program.
Open Boulder County EnergySmart advising route
CSU household energy observation checklist
Use it for: Organize observations by heating, cooling, hot water, appliances and lighting.
Access and cost: Public reference freely readable; tests, equipment, professional services and improvements may cost extra.
How to use it: Use the category headings to make a household question list; verify actual system instructions, current standards and appropriate professional scope before acting.
Evaluation and limits: Average energy shares, savings, temperatures, filter intervals and insulation levels are not adopted as current prescriptions. Food-storage settings need food-safety authorities. No outlet opening, pressure testing, chimney modification or equipment work authorized by this review.
Alternatives: DOE professional-assessment preparation, actual manufacturer instructions and current applicable requirements.
Open CSU household energy observation checklist
Checklist
- Essential services and energy dependencies listed
- Devices, fuels, manuals and usage assumptions recorded
- Power and energy units kept distinct
- Dated bills and comfort/moisture observations assembled
- Qualified assessment scope, terms and written report agreed
- Priorities, actual actions and comparable follow-up preserved
Related guides
Owner-building and project management (SG-D08-S04); Roofs, foundations and building envelopes (SG-D08-S06); Healthy indoor environments (SG-D08-S07); Insulation and weather sealing (SG-D09-S01); Heating choices and wood heat (SG-D09-S02); Cooling, shade and ventilation (SG-D09-S03); Solar and renewable energy (SG-D09-S05); Backup power and energy storage (SG-D09-S06).
From the Whole Earth registry to current practice
Household energy assessment is a modern extension of the Whole Earth library’s emphasis on useful knowledge and independent evaluation. No directly matching historical household load-audit method was verified in this batch. The inventory, unit example and evidence file are original synthesis supported by current and explicitly dated resources; no historical procedure is invented to supply a lineage.
Sources and review notes
No household, utility account, device, price, tariff, measurement, energy service or assessment was tested. No old DIY depressurization, thermostat, insulation or food-storage prescription is adopted. This is a modern extension of the catalog framework; no directly matching historical load-audit method was verified. Existing guide ID, topic ID and slug are retained.
