Static Efficiency Calculator

Enter your inventory and company data to generate a comprehensive savings analysis.
Each structure carries one or more faces
Timer-controlled display faces
Photocell / dusk-to-dawn faces
Current timer schedule
:
When timer turns lights on
:
When timer turns lights off
Equipment & utility
Example: 400W total per billboard face.
$USD / kWhdefault
Replace with actual rate for accurate estimate
%
Share of faces with a paying advertiser (80% = 4 of every 5 faces sold).
$USD / face / month
Annual revenue = monthly price × 12 × sold faces.
$USD / visit
The outsourced contractor’s price for one site visit.
$USD / month
Before employer social costs; the country average is shown.
Round trip: 64 km (40 mi). The contractor’s price already includes travel; the distance is used for the light-inspection driving and the travel and CO₂ avoided.
Average between 2 and 6 a year (daylight-saving adjustments, timer resets, inspections and repairs).
%
The portion of each technician’s pay attributed to light inspections.
Adds campaign and service-travel emissions to the report.
Estimated potential annual energy savingsUSD
📍
Sold energy excess
$0
Sold faces lit outside the hours needed
+
Unsold energy excess
$0
Unsold faces lit with no advertiser
Based on current inputs. Final savings should be confirmed using actual fixture wattage, utility bills, inventory counts, and observed timer/photocell settings.
Sunset vs. timer schedule, 12-month view
Shows when the sun sets each month vs. your timer settings. The shaded zone above the dashed line represents excess illumination.

Energy savingsYearly · USD

Estimated monthly potential savings, sold faces
Timer and photocell excess on sold faces, month by month.
Monthly savings, sold faces
JanFebMarAprMayJun JulAugSepOctNovDecAnnual
Monthly timer excess, sold faces
JanFebMarAprMayJun JulAugSepOctNovDecAnnual
Monthly photocell excess, sold faces
JanFebMarAprMayJun JulAugSepOctNovDecAnnual

Service calls

Remote monitoring and control resolve 50% of site visits without a truck (timer resets, light checks, wasted trips). The other 50% still need a truck (failed drivers, storm damage, vandalism) and are not counted.

Visit rates, crew costs and the distance between structures are typical assumptions and estimates. Replace them with your own service history and costs for an accurate figure.

Nightly light inspections

The cost of technicians driving around at night to inspect the lights.

Revenue at risk

Revenue at risk values each hour that sold timer faces stand dark between sunset and Timer ON at the hourly value of their sold, illuminated time (timer-face revenue divided by illuminated hours).

Summary of your inputs

Timer excess

Counts the hours the timer has lights on before sunset (from Timer ON to the earlier of sunset and Timer OFF), plus, when the timer is still on after sunrise and goes off before noon, the hours from sunrise to Timer OFF. Hours outside the timer window are never counted, so the excess cannot exceed what the timer burns. Calculated monthly using NOAA solar position algorithms for your location.

excess hours = (max(0, min(sunset, timer OFF) - timer ON) + max(0, timer OFF - max(sunrise, timer ON))) × days × faces

Photocell excess (off time to sunrise)

Photocells keep faces lit from dusk all the way to sunrise. This measures the cost of the late-night window, from your preferred OFF time (or sunset, if later) until sunrise. Applies to photocell-controlled faces only.

excess hours = (sunrise - max(OFF time, sunset)) × days × faces

Energy cost

Converts excess illumination hours to kilowatt-hours and multiplies by the utility rate.

cost = excess hours × wattage ÷ 1,000 × $/kWh

Unsold inventory

An unsold face earns no revenue, so every hour it stays lit is excess. This counts the full nightly run time (timer window for timer faces, dusk to dawn for photocell faces) for the unsold share of your inventory, adjusted by how often unsold faces are already switched off.

Service calls and light inspections

Service visits per structure per year. Remote monitoring and control resolves 50% of them (timer resets, light checks, wasted trips), so 50% of the visits are avoided; the other 50% still need a visit (failed drivers, storm damage, vandalism) and are not counted. Each avoided visit is priced at the outsourced contractor’s price per site visit, or for your own technicians at their pay (with the country’s employer social costs), driving time and vehicle cost. Timer resets are priced as a route from structure to structure. Nightly light inspections are priced at the technicians’ pay share and the night’s driving.

Revenue at risk

Values each hour of sold, illuminated time at the timer faces’ annual revenue divided by their annual illuminated hours, and multiplies it by the hours they stand dark between sunset and Timer ON.

revenue at risk = timer-face revenue ÷ annual illuminated hours × dark hours (never more than the timer-face revenue)

Final savings should be confirmed using actual fixture wattage, utility bills, inventory counts, and observed timer/photocell settings. This is a rough estimate; speak with an Outdoorlink representative for a detailed model.