Operating cost planning
Estimating Outdoor LCD Energy Use: Ask for the Operating Profile
Before asking what an outdoor LCD installation will cost to run, define what equipment is included and how it will operate. A useful energy estimate connects verified power information to a documented schedule, with assumptions that the site team can review.
This guide explains a planning method. It does not provide a measured power figure, electricity tariff or energy-saving claim for any JIAMIAI LCD product. Confirm the proposed configuration and supporting data with the supplier.
Separate power from energy
Power describes the rate of electricity use; energy describes use over time. The U.S. Energy Information Administration's measurement guide distinguishes watts from watt-hours and explains kilowatt-hours.
For an interval with a known average input power, the calculation is:
Energy in kWh = average input power in watts × hours in the interval ÷ 1,000.
If the installation uses different operating states, calculate each interval separately and add the results. The calculation is only as useful as its power inputs and schedule; a label value with unspecified conditions is not a measured daily profile.
Define the equipment boundary
Ask whether the supplied power figure covers the display panel, the complete enclosure assembly or the whole installation. Identify separately powered items so that they are neither missed nor counted twice.
- Display and enclosure equipment included in the proposal.
- Media player, controller or other publishing hardware.
- Any proposed thermal-management equipment and its measurement boundary.
- Separately powered networking or other site equipment included in the estimate.
Record the actual model and configuration beside each entry. A figure for one component should not be assigned to the complete installed system without confirmation.
Ask what each power figure means
Request the source document, test conditions and definition of every quoted value. Have the supplier distinguish a maximum or rated input from a typical figure or measured average.
Ask which settings, content, environmental conditions and connected equipment were used. If the proposal includes brightness adjustment or other operating modes, request confirmation of how those modes were represented. Do not assume that every proposed function is supplied or that a generic percentage reduction applies.
Keep missing information visible as an open question. Use the quote comparison checklist to request the same definitions and scope from each supplier.
Build the site's operating schedule
Record the intended daily display hours, different weekday or weekend schedules and any seasonal changes. Ask what happens outside the visible-content period: the proposed configuration may need a separately documented state rather than an assumption of zero consumption.
For each time block, list the intended state, duration, verified average power input and source of that figure. Where a behavior has not been confirmed, mark it as an assumption awaiting evidence. Confirm that the intervals cover the period you are estimating without overlap.
Keep an electricity estimate distinct from the bill
Once the energy estimate is documented, ask the site team to apply its current electricity charging arrangement. Keep the currency, charging period and applicable conditions with the calculation.
If using a simple energy rate, multiplying kWh by the rate gives the energy-charge component. Do not present that amount as the complete electricity bill unless the site's relevant charges have been accounted for. Obtain the actual charging details from the responsible facilities or commercial team.
Plan a measurement review
For a pilot installation, agree an appropriate measurement method with the supplier and responsible electrical professional. Record the equipment boundary, measurement period, schedule, settings and site conditions. Installation of measurement equipment and any electrical work should follow the applicable professional procedures.
Compare the observed energy with the assumptions used in the estimate. Investigate differences before applying one site's result across a wider rollout. Keep unmeasured seasonal or operating conditions identified rather than claiming a short observation represents the entire year.