# Home Energy Audit Savings Calculator — Canada

> Evaluate an audit recommendation using a specified reduction in energy spending. The Irish optional baseline uses Electric Ireland EnergySaver 14 DD/online-bill tariff variants with separately dated PSO periods, not a national average or a future-price guarantee. CAD planning view; stated limitations apply.

Page: https://askcalculators.com/ca/energy-audit/
Definition: https://askcalculators.com/ca/energy-audit/definition.json
JSON Schema: https://askcalculators.com/ca/energy-audit/schema.json
Version: 20.16.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/ca/energy-audit/?annualEnergyCost=2400&savingPercent=20&projectCost=5000&incentive=0&extraMaintenance=0&years=15&discountRate=4

## Inputs
- annualEnergyCost: Manual baseline: annual energy spending; type=money; required; default=2400; min=0; max=1000000000000
- savingPercent: Audit-supported variable-spending reduction assumption; type=percent; required; default=20; min=0; max=100
- projectCost: Project price; type=money; required; default=5000; min=0; max=1000000000000
- incentive: Confirmed eligible incentive; type=money; required; default=0; min=0; max=1000000000000
- extraMaintenance: Additional annual maintenance; type=money; required; default=0; min=0; max=1000000000000
- years: Analysis years; type=number; required; default=15; min=1; max=50
- discountRate: Discount rate; type=percent; required; default=4; min=0; max=50

## Outputs
- baselineCost: Entered or modeled baseline annual spending; format=currency
- fixedCost: Tariff standing charge and PSO, not reduced by energy efficiency; format=currency
- capital: Net capital cost; format=currency
- annualSaving: First-year net saving; format=currency
- payback: Simple payback, years; format=number; primary
- npv: Discounted net value; format=currency

## Formula
Annual net saving = eligible variable energy spending × reduction fraction − additional maintenance. Fixed standing charges and PSO are not reduced by a consumption-saving percentage.

Inputs are converted to canonical units before evaluating this stated formula.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.

Notice: Illustrative defaults are not local quotes or verified legal rules. Dated reference components and user-entered assumptions are explicitly distinguished. Professional review is pending.