Frequently Asked Questions
What electricity rate should I use?
The US average is about $0.14/kWh, but Hawaii is near $0.31 and Louisiana near $0.09. Find your rate on the bill's energy charge line, not the total divided by kWh (which includes fixed charges).
What are the biggest energy users in a typical home?
Space heating and cooling account for 45-50% of home energy use, water heating about 18%, appliances and electronics 30%, and lighting around 10% with LEDs.
How do I reduce phantom load?
Group idle electronics on switchable power strips to cut them off completely when not in use. Cable boxes and game consoles in instant-on mode are among the worst offenders.
Is this a substitute for a professional energy audit?
No. A professional auditor uses blower-door tests, infrared cameras, and duct leakage tests to find specific issues. This calculator estimates consumption by category - useful for prioritizing but not a substitute for on-site diagnostics.
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Estimates for informational purposes only.
Important Disclaimer: Estimates for informational purposes only.
This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.