Climate
Home Energy Audit by Photo
Photograph your appliances and get the biggest energy-saving fixes ranked
Intermediate16h1–2
Vision LLMNext.jsCharts
16/20Run-When-Green Appliance Scheduler
Shift EV charging, laundry and dishwasher runs to the cleanest grid hours.
Intermediate14h1–2 people17/20 fit
Build Run-When-Green Appliance Scheduler for households with evs or heavy appliances in ~14h with 1–2 people. Stack: Electricity Maps API + Next.js + Charts.
Why it wins: Clear data story and real behaviour change.
Build flow
01 · Problem
The same kilowatt-hour can be far dirtier at 7 pm than at 2 pm, but nobody sees it.
02 · Solution
Pull carbon-intensity forecasts for the user's zone and recommend the greenest window for each task, with a weekly CO2 saved estimate.
03 · Build
- 1Fetch carbon intensity for a zone
- 2Find the lowest window for each task
- 3Send reminders
- 4Estimate savings
04 · Demo
Show tomorrow's carbon curve and the suggested laundry slot.
MVP checklist
- Carbon forecast chart
- Task scheduling
- Reminders
- CO2 saved estimate
Tech stack
| Tech | Role | |
|---|---|---|
| Electricity Maps API | Grid carbon intensity | API |
| Next.js | Frontend + API routes | Web |
| Charts | Data visualisation | UI |
Reference repos
Open-source projects you can build on. Links checked 2026-10-31.
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