Climate
Home Energy Audit by Photo
Photograph your appliances and get the biggest energy-saving fixes ranked
Intermediate16h1–2
Vision LLMNext.jsCharts
16/20Heat Pump and Inverter AC Savings Calculator
Compare running cost and emissions of your current system with an efficient one.
Beginner8h1–2 people17/20 fit
Build Heat Pump and Inverter AC Savings Calculator for homeowners considering an upgrade in ~8h with 1–2 people. Stack: Next.js + Charts.
Why it wins: Clear calculator with a decision-ready answer.
Build flow
01 · Problem
Efficient appliances cost more upfront and people cannot judge the payback.
02 · Solution
Take current system type, usage and tariff, compute yearly cost and CO2 for both options and show the payback period.
03 · Build
- 1Model energy use formulas
- 2Build the input form
- 3Chart comparison
- 4Add share link
04 · Demo
Enter a real AC model and show a payback chart.
MVP checklist
- Usage inputs
- Cost and CO2 comparison
- Payback chart
- Shareable result
Tech stack
| Tech | Role | |
|---|---|---|
| Next.js | Frontend + API routes | Web |
| Charts | Data visualisation | UI |
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