Compare the annual electricity cost of two signage options using your own operating hours and tariff. Enter the measured input power for each option, including the proposed lighting system as it will operate. If the sign uses different day and night settings, calculate each operating scene separately and combine the results.
The estimate explains its inputs so you can update them when the design changes. It does not include every ownership cost: access, maintenance, replacement components and control equipment may also affect the decision. Use the result alongside the technical proposal and warranty schedule.
Formulas
Annual energy (kWh) = watts ÷ 1,000 × hours per day × days per year.
Annual energy cost = annual kWh × tariff.
Simple payback = incremental installed cost ÷ annual net saving, shown only when the saving is positive.
Worked example (illustrative numbers only)
These figures are placeholders to show the method and are not Metroplus product data. A sign drawing 200 W for 10 hours a day over 365 days uses 200 ÷ 1,000 × 10 × 365 = 730 kWh a year. At a tariff of AED 0.50 per kWh that costs AED 365 a year. Replace each value with measured input power and your own tariff.
Maintenance, access, controls and tariff changes may alter total ownership cost. Request a technical signage review or read the LED signage retrofit guide.
From our workshop
Enter measured values and read the result
The calculator multiplies your inputs. It does not assume any wattage, tariff or saving.
Use measured input power for each option. If a sign has different day and night settings, calculate each scene separately and add the results.
Measured power
Watts for each option as it will operate.
Hours and days
Hours per day and operating days per year.
Your tariff
Electricity tariff in AED per kWh.
Payback
Shown only when the annual saving is positive.