Building Retrofit Lifecycle Savings

How to use this tool

1. Enter your own assumptions using a consistent currency and period.
2. Review the scenario outputs and compare alternative inputs.
3. Check the stated model limits before using the result in an operating plan.

Try this example

{
  "baseline_energy": 100000,
  "reduction": 20,
  "energy_price": 0.2,
  "maintenance_saving": 500,
  "installation": 20000,
  "years": 10
}

Accuracy and scope

Undiscounted constant-price scenario, not an engineering forecast. Does not include degradation, energy-price change, taxes or replacement cycles.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.