Replacement of Electronic and ICT Equipment
ICT
Measure Goal
The goal is to standardize the calculation of electricity savings triggered by the replacement of electronic and ICT devices, taking into account efficiency improvements in devices such as computers, monitors, printers, network equipment and other ICT components.
Symbols, Terms and Units
| Symbol | Description | Unit |
|---|---|---|
E | annual electricity consumption | kWh/a |
ΔEeco | cumulative electricity savings | kWh |
PGerät | power consumption of the device | W |
n | number of devices | - |
hBetrieb | annual operating hours | h/a |
fStandby | standby factor | - |
Ns | standard effective duration | a |
Calculation Formulas
Jährlicher Stromverbrauch IKT-Gerät
The annual electricity consumption results from the number of devices multiplied by the sum of operating and standby consumption.
Standby-Stunden
The standby hours per year result from the total hours (8760) minus the operating hours.
Annual Electricity Savings
The annual electricity savings result from the difference between electricity consumption before and after device replacement.
Cumulative Electricity Savings
The cumulative electricity savings result from the annual savings multiplied by the standard effective duration and the correction factor.
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