Replacement of Indoor Lighting Systems
Lighting
Measure Goal
The goal is to standardize the calculation of electricity savings that are triggered by the optimization, replacement or retrofitting of lighting systems or parts thereof (replacement of lamps or luminaires, luminaire conversion and/or installation of additional detection and control components) indoors, taking into account all consumption-relevant parameters.
Symbols, Terms and Units
| Symbol | Description | Unit |
|---|---|---|
E | annual electricity consumption | kWh/a |
ΔEeco | cumulative electricity savings | kWh |
f | Factor | — |
Ns | Standard effective duration | a |
Calculation Formulas
Annual Electricity Savings
The annual electricity savings result from the difference between electricity consumption before and after the measure.
Cumulative Electricity Savings
The cumulative electricity savings result from the annual savings multiplied by the standard effective duration and the correction factor.
Lighting Electricity Consumption
The electricity consumption of the lighting is calculated from the sum of area, installed power and operating hours for each room use.
Examples and Scenarios
Replacement of lighting in an industrial building (10,785 m²)
Inputs
Traffic area, Office, Production, Warehouse, Utility room
Replacement of floor lamps in an open-plan office (130 workstations)
Inputs
Open-plan office
Downloads
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