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90 Burnhamthorpe Rd W, Mississauga, ON L5B 0H9
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Lighting Retrofit Savings Calculator
What does the Retrofit Savings Calculator do?
It compares existing vs LED lighting to show kWh reduction, cost savings, CO₂ savings, and payback.
Does it handle one-for-one replacements?
Yes, just enter your existing wattage and proposed LED wattage.
Can I model a redesign?
Yes, change the fixture counts and wattages to reflect fewer, more efficient fixtures.
Does it calculate carbon savings?
Yes, CO₂ reduction is shown based on Ontario’s grid emission factor.
What about maintenance savings?
You can add your current lamp replacement costs to estimate reduced maintenance with LED.
Does it include rebates?
Not directly. Pair it with the Rebate Estimator to see the full impact.
How is payback calculated?
It divides project cost by annual energy and maintenance savings, showing simple payback in years.
Can I include controls?
Yes, add dimming or occupancy control assumptions to see extra savings.
Does it save results?
No, export or print to keep a record.
Can I use blended electricity rates?
Yes, enter your average $/kWh rate. For TOU users, calculate a weighted average for accuracy.
What is the accuracy?
It’s a planning tool with estimates. Final savings depend on actual hours, rates, and design.
Who should use it?
Business owners, contractors, and energy managers comparing retrofit options.