Build Your Own AI Home Energy Copilot: Prompt Pack

Want your dual-fuel heating system to pick the cheaper fuel each hour, without a subscription or locking yourself into one vendor? This prompt pack takes you through building your own AI home energy copilot with any AI coding assistant, in 12 phases:

1. Planning & architecture

2. Data feeds: electricity prices (hourly/time-of-use), gas cost, weather, outdoor AQI/PM2.5, indoor sensors

3. Fuel-switch economics: cost per MMBTU, COP curves, hysteresis, price forecasting

4. A thermal model of your house, plus pre-heat/pre-cool and forecast scoring

5. Ventilation & air-quality guard, plus humidity management

6. Device integrations behind a command validator, with manual override detection

7. Safety fallbacks & health checks

8. Local web dashboard

9. Daily HTML email report

10. Testing: property tests, simulation, failure injection

11. Deployment as a background service

12. Optional local LLM advisor (advice only, never in control)

Each prompt includes a goal, [PLACEHOLDERS] to fill in, the expected output, and a safety note. It works with any smart thermostat that has a local or cloud API, any utility with hourly or time-of-use pricing, and any gas utility.

Included: PDF guide, dual-fuel breakeven worksheet (.xlsx) with live formulas.

Not included: source code, hardware, or professional advice. Safety comes first throughout: hard min/max temperature limits, a manual override that always wins, and reminders to consult a licensed HVAC professional and check your utility's tariff.

Disclaimer: Educational prompts only. Cost results are estimates. Not affiliated with any thermostat maker, utility, or AI provider.