💡 Grid vs Solar Cost Comparison Tool
Calculate your total electricity cost over years and see if solar is the better choice.
🧠 Tool Logic
Inputs:
- Monthly electricity usage (kWh)
- Grid electricity cost per kWh
- Solar cost per kWh (optional or derived)
- Fixed monthly grid charges
- Optional solar maintenance cost
- Years to compare (default: 25)
Outputs:
- Total grid cost over time
- Total solar cost over time
- Cumulative savings
- Break-even summary
- Verdict: Solar Wins / Grid Cheaper