Lighting Retrofit Savings Calculator
Estimate energy and cost savings from switching to LED with smart controls.
Estimate only, based on the watt and hour figures you enter and a GCC grid factor. Real savings depend on daylight, occupancy, and controls. A puniq audit confirms the number for your site.
About this tool
Lighting is one of the fastest, lowest-risk efficiency wins in any GCC building. Swapping legacy fittings for LED typically cuts per-fixture power by 60 to 75%, and because lights run long hours every day, those watts add up to real money. This calculator estimates the annual cost, energy, and carbon you save across your whole fixture count.
Enter how many fixtures you have, the existing and LED wattage, daily operating hours, and your electricity tariff. The tool computes the daily kWh saved, scales it to a full year, and converts that into cost saved and CO₂e avoided using a GCC grid factor of 0.45 kg per kWh.
How to read the result
The headline figure is your estimated annual cost saved at today's tariff. The per-fixture power cut shows how deep the upgrade is, and the carbon line supports Estidama, Mostadam, and LEED reporting. Pairing the retrofit with occupancy and daylight controls pushes savings higher still, which is where unified, vendor-neutral building intelligence keeps adding value after the lamps are changed.
Frequently asked
Are these savings realistic?
Yes. The model uses the watt and hour figures you enter, so it reflects your own fixtures. A 60W lamp replaced by an 18W LED running 12 hours a day is a typical, conservative GCC case.
Does the estimate include controls?
No, it values the wattage swap alone. Adding occupancy sensors, daylight dimming, and scheduling usually lifts savings another 10 to 30% on top, especially in corridors, car parks, and back-of-house areas.
What payback should I expect?
LED retrofits in high-hour spaces often pay back in well under two years from energy savings, before counting lower maintenance from longer LED lifespan.
How is the carbon figure calculated?
It multiplies annual kWh saved by a GCC grid average of 0.45 kg CO₂e per kWh, then converts to tonnes. It is an indicative figure useful for Estidama, Mostadam, and LEED reporting, not an audited inventory.
More calculators
Building Energy Savings Calculator
Estimate the annual kWh and cost you can cut by unifying and optimizing your building controls.
HVAC Cooling Load Estimator
Size the cooling load of your space in tons of refrigeration for GCC conditions.
Energy Use Intensity (EUI) Benchmark
Benchmark your building's kWh/m2 against GCC averages for its type.