KA-05a
Version 2.0
Operational Optimization
Adjustment of Operating Hours
Refrigeration Technology
Measure Goal
The goal is to standardize the calculation of electricity savings that are triggered by adjusting the operating times of refrigeration systems to avoid unnecessary running times.
Symbols, Terms and Units
| Symbol | Description | Unit |
|---|---|---|
ΔE | annual electricity savings | kWh/a |
ΔEeco | cumulative electricity savings | kWh |
Pel | electrical power consumption | kW |
ΔhB | reduction in operating hours | h/a |
Ns | standard effective duration | a |
Calculation Formulas
Annual Electricity Savings
ΔE = Pel × ΔhB
The annual electricity savings result from the electrical power consumption multiplied by the reduction in operating hours.
Cumulative Electricity Savings
ΔEeco = ΔE × Ns
The cumulative electricity savings result from the annual savings multiplied by the standard effective duration.
Examples and Scenarios
Scenario A
Savings
Reduction of operating times of a refrigeration system with 70 kW by 500 hours per year
35'000
kWh
Inputs
Elektrische Leistung: 70 kW, Reduktion der Betriebsstunden: 500 h/a
Downloads
Documentation (PDF)
Complete technical documentation including calculation basis
Excel Calculator (XLSX)
Interactive calculation tool for savings
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