HZ-03b
Version 1.0
Retrofit
Retrofitting of Remote Control for Heating in Second and Holiday Homes
Heating Technology
Measure Goal
The goal is to estimate the electricity savings triggered by the retrofit of a remote control for heating in second homes and holiday apartments.
Symbols, Terms and Units
| Symbol | Description | Unit |
|---|---|---|
E | annual electricity consumption | kWh/a |
ΔEeco | cumulative electricity savings | kWh |
fP | utilization factor | — |
Ns | Standard effective duration | a |
Calculation Formulas
Cumulative Electricity Savings
ΔEeco = (Eold - Enew) × feco × Ns
The cumulative electricity savings result from the difference between the electricity consumption without and with remote control, multiplied by the reduction factor and the standard effective duration.
Annual Electricity Consumption
Ex,i = (fP,i/η_x) × fR × (Qli0 + ΔQli × a) × (1 + (9.4 - θ_e,avg) × 0.06 K⁻¹) × AE
The annual electricity consumption is reduced by the utilization factor, which takes into account the lowering of the room temperature during absence.
Examples and Scenarios
Scenario C
Savings
Retrofit of a remote control for a decentralized electric heating system in a 2.5-room holiday apartment
4'800
kWh
Inputs
Zweitwohnung 2 Zimmer (GEAK F)
Downloads
Documentation (PDF)
Complete technical documentation including calculation basis
Excel Calculator (XLSX)
Interactive calculation tool for savings
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