Start with the largest loads
Heating and cooling commonly represent a large share of home energy use. In a Houston summer, the A/C may dominate. Pool pumps, electric water heaters, clothes dryers, EV charging, and multiple refrigerators or freezers can also add substantial kWh.
A practical order of operations
- Track daily usage. Compare similar-weather days in Smart Meter Texas rather than waiting for the next bill.
- Use the highest comfortable cooling setting. Small consistent adjustments are easier to evaluate than extreme changes.
- Check the filter and airflow. Keep returns and supply vents unobstructed.
- Reduce heat entering the home. Close effective window coverings during strong sun and address obvious door or window air leaks.
- Review attic insulation and ducts. Hot-attic duct leakage or poor insulation can waste cooled air and increase runtime.
- Schedule flexible loads. Avoid unnecessary pool-pump hours and review water-heating or EV schedules when the equipment permits.
Use fans correctly
Fans cool people, not empty rooms. A ceiling fan can improve comfort and may allow a higher thermostat setting while the room is occupied. Turn it off when the room is empty.
Look for patterns, not one unusual day
Outdoor temperature, guests, laundry, cooking, and billing-day count can distort a short comparison. Use several similar days before deciding a change worked. A sudden, unexplained increase that persists may deserve an equipment or electrical inspection.
Do not open electrical equipment, handle refrigerant, enter unsafe attic areas, or attempt repairs beyond your training. Use qualified professionals for HVAC, electrical, duct, insulation, or structural work.