Scenario A
Raising the usage temperature in a cold room by 2 K (50 kW)
20'000kWh
eligible kWh, accumulated over the measure's lifetime
Efficiency bonusCHF 400
Inputs: Elektrische Leistung: 50 kW, Betriebsstunden: 5'000 h/a, Temperaturerhöhung: 2 K
SFOE standard catalogue · Refrigeration Technology · Version 2.0
Adjustment of Operating Temperature
The goal is to standardize the calculation of electricity savings that are triggered by adjusting the usage temperature to optimize the evaporation temperature.
Examples and Scenarios
What the measure delivers
Efficiency bonus per kWh2 Rp./kWh
Requirements
Only measures that meet the requirements of the Energy Ordinance (SR 730.01; EnV) can be credited. The additional requirements for the technical characteristics and for the implementation of the measure are set out in Table 1.
| Technology | Mains-operated refrigeration systems within the scope of Annexes 1.14 or 2.11 EnEV (SR 730.02; EnEV) with a rated cooling capacity of up to: - 40 kW in the application area of above-zero cooling - 30 kW in the application area of below-zero cooling - 80 kW in the application area of comfort air-conditioning with direct evaporator - 200 kW in the application areas of comfort air-conditioning with refrigerant carrier, IT servers and process cooling |
|---|---|
| Implementation | The measure must be carried out by a qualified specialist / company. |
Proof of compliance
Compliance with the requirements must be demonstrated by the following documents. The documents listed in Table 2 are an integral part of the proof of measure implementation.
- 1.Invoice documents (PDF, PNG or JPEG format)
Calculation basics: symbols, units and formulasNot needed for the review, useful for recalculating
Symbols, Terms and Units
| Symbol | Description | Unit |
|---|---|---|
ΔE | annual electricity savings | kWh/a |
ΔEeco | cumulative electricity savings | kWh |
Pel | electrical power consumption | kW |
ΔTV | evaporation temperature difference | K |
hB | annual operating hours | h/a |
Ns | standard effective duration | a |
Calculation Formulas
Annual Electricity Savings
ΔE = Pel × hB × 0.04 × ΔTV
The annual electricity savings result from the electrical power consumption, operating hours and temperature difference (approx. 4% savings per K).
Cumulative Electricity Savings
ΔEeco = ΔE × Ns
The cumulative electricity savings result from the annual savings multiplied by the standard effective duration.
Downloads
Documentation (PDF)Complete technical documentation including calculation basisDownload DOC
Excel Calculator (XLSX)Interactive calculation tool for savingsDownload PRO
Previous measure
← KA-04a · Cleaning of Air CoolersNext measure
KA-04c · Adjustment of Superheat →Other measures in Refrigeration Technology
KA-01aReplacement of Air Conditioning Units up to 12 kW in Non-Residential SpacesKA-02aReplacement of Cooling Products up to 250 kWKA-03aCleaning of Condensers and RecoolersKA-03bControl of Minimum Condensing TemperatureKA-03cReduction of Condenser Air Short-CircuitsKA-04aCleaning of Air CoolersKA-04cAdjustment of SuperheatKA-05aAdjustment of Operating Hours
Part of the EFFEL programme
Standardised measures are one of two measure types in the EFFEL programme (efficiency improvements by electricity suppliers, Art. 46b EnG). They follow a predefined SFOE catalogue with fixed savings values.