Section 2 turns ordinary energy use into a visible household system. The goal is not to buy every efficient product. The goal is to understand where energy goes, fix the most useful losses, plan larger replacements before an emergency, and compare bills and comfort afterward.
Why this section comes second
Reduce demand before deciding how to supply it.
Everyday habits from Section 1 make waste easier to notice. Section 2 applies that attention to the home itself. A more efficient home can be more comfortable, cost less to operate, and require a smaller clean-power system in Section 3.
Stage 1 of 3 • Five tasks
First Wins: understand daily energy use.
These are low-cost, renter-friendly actions. They create the observations and routines needed before larger upgrades.
Choose one light, charger, device, or power strip that can stay off when it is not needed.
Put rarely used entertainment or office devices on a power strip so shutting them down is easy.
Use full loads, cold water for normal washes, a clean lint filter, or partial air drying.
Try a modest thermostat, shade, curtain, or fan change without making the home uncomfortable.
Look at usage, fees, and seasonal patterns so the next decision starts with real information.
These are the same five Section 2 First Wins tasks used by the Companion.
Work on Stage 1Stage 2 of 3 • Five tasks
Household Systems: turn fixes into a repeatable plan.
This stage combines practical improvements with measurement. Renters can complete suitable tasks and document larger repair requests for an owner or building manager.
Weatherstrip a suitable door or window, or document the repair request if you rent.
Replace the most-used non-LED bulbs and use daylight or a simple turn-off routine.
Replace or clean filters and schedule appropriate heating, cooling, fan, or portable-unit maintenance.
Fix or report a leak and consider an efficient showerhead or faucet aerator where appropriate.
Compare monthly electricity and fuel use with the prior year and note weather or household changes.
Use the Companion to track these five repeatable home-energy systems as you complete them.
Work on Stage 2Stage 3 of 3 • Five tasks
Bigger and Verified Action: improve the building and equipment.
Larger work should follow evidence, safety requirements, and the normal replacement cycle. Qualified help may be needed.
Use a qualified auditor or a thorough utility-backed assessment to rank the home's largest losses.
Act on the highest-priority air-sealing, insulation, or duct recommendation with qualified help where needed.
Decide how heating, cooling, water heating, cooking, and drying can shift as equipment ages out.
Compare right-sizing, lifetime energy, repairability, rebates, and total cost before replacing equipment.
Track energy use and comfort after the work and record what actually improved.
Open the Companion when you are ready to plan, complete, and verify the larger Section 2 work.
Work on Stage 3Whole-home walk-through
Look at one room and one system at a time.
Do not turn the walk-through into a shopping list. Record what you see, distinguish a safe do-it-yourself fix from professional work, and rank the next action by comfort, cost, and likely value.
Check door edges, window gaps, attic hatches, exterior-wall outlets, and pipe or cable penetrations. Larger sealing and insulation work should respect ventilation, moisture, combustion, and local-code needs.
Note uneven rooms, filter condition, blocked vents, shade, controls, equipment age, noise, and service history. Comfort problems can reveal waste or repair needs.
Start with frequently used lighting and electronics that stay on or warm. Avoid replacing functioning equipment merely to chase a small theoretical gain.
Check leaks, shower flow, water-heater condition, laundry temperature, dryer airflow, and whether safe maintenance is overdue.
Upgrade planner
Choose upgrades by cost, comfort, timing, and impact.
The best plan combines actions that are useful now with larger work timed around audits, rebates, roof or envelope projects, and normal equipment replacement.
| Upgrade | Why it matters | Good first step |
|---|---|---|
| Weatherstripping and air sealing | Can reduce drafts and heating or cooling loss. | Fix one obvious draft, then have complex leakage evaluated. |
| LED lighting | Reduces electricity and heat from frequently used lighting. | Replace the bulbs used most often. |
| Insulation and ducts | Helps conditioned air stay where it belongs. | Use audit findings and qualified installation. |
| Efficient appliances | Large equipment shapes energy, water, and repair costs for years. | Plan before end of life so replacement is not rushed. |
| Heat pumps and electrification | Can provide efficient heating, cooling, and water heating with cleaner electricity. | Check sizing, climate performance, electrical needs, and incentives. |
Renters and shared homes
You do not need to own the building to participate.
Lighting, plug control, laundry routines, shades, bill review, and approved weatherstripping can often be handled without building work.
Photograph drafts, leaks, broken controls, comfort problems, and equipment issues. Make specific repair requests instead of vague complaints.
Check utility efficiency programs, tenant protections, community energy programs, and owner incentives where available.
Do not block required ventilation, alter fuel-burning equipment, open electrical panels, or perform work that requires a qualified professional.
Close the loop
Measure the result before moving on.
Record the date and cost of each change, note comfort before and after, and compare similar billing periods when possible. Weather, occupancy, and new equipment can change a bill, so do not credit every difference to one upgrade. Section 3 should use the electricity that remains after these efficiency gains.
Official tools and further reading
Use current, location-specific information.
- U.S. Department of Energy: Why Energy Efficiency MattersAn overview of energy assessments, air sealing, insulation, equipment, and the value of reducing household energy waste.
- ENERGY STAR Home Energy YardstickA bill-based tool for comparing a home's annual energy use with similar homes and establishing a baseline.
- ENERGY STAR Home Performance AssessmentWhat a qualified whole-home assessment examines and how it can guide a coordinated improvement plan.
- ENERGY STAR Product FinderCurrent certified-product information for appliances, heating and cooling, water heating, lighting, windows, and related equipment.
- U.S. Department of Energy: Heat Pump SystemsTechnology and planning context for air-source, ductless, ground-source, and cold-climate heat-pump options.
Rebates, tax treatment, contractor requirements, codes, and utility programs can change. Confirm them with current official local, state, utility, and federal sources before spending money.