EEAgentur.chEEAgentur.ch
EFFEL
The programmeEFFEL for companies
Measures
Standardised measuresNon-standardised measuresFunding check
FAQAbout usContactFunding checkRegister as a utility
ImprintPrivacySitemap
EEAgenturEEAgentur
The programmeEFFEL for companies
Standardised measuresNon-standardised measuresFunding check
FAQAbout usContact
Funding check
EEAgentur

EEAgentur is a service of Energieagentur St.Gallen. We make efficiency measures eligible for the EFFEL programme and match them with electricity suppliers.

energieagentur-sg.ch ↗bfe.admin.ch ↗

Programme

  • The programme
  • EFFEL for companies

Measures

  • Standardised measures
  • Non-standardised measures
  • Funding check
  • Register as a utility

Agency

  • FAQ
  • About us
  • Contact

Legal

  • Imprint
  • Privacy
  • Sitemap
© 2026 Energieagentur St.GallenEFFEL · Efficiency gains through electricity suppliers · Art. 46b EnG
  1. Home
  2. Standardized Measures
  3. Heating Technology
  4. HZ-03a

SFOE standard catalogue · Heating Technology · Version 2.0

Replacement of Decentralized Electric Heating by Air Conditioning Units in Residential Buildings

The goal is to estimate the electricity savings triggered by the renovation of a fixed resistance heating (electric heating) in residential buildings by replacing it with fixed reversible split or multi-split air conditioning units.

At a glance

HZ-03a

Type
Replacement
Version
2.0
Example A · Replacement of a decentralized electric heating system in a two-family house with a 6-room and a 2-room apartment
no example in the catalogue
Proofs
3 documents
Start funding check for HZ-03a
  • Examples and calculator
  • Requirements
  • Proofs
  • Calculation basics
  • Downloads

Examples and Scenarios

What the measure delivers

5.0 Rp./kWh

Scenario A

Replacement of a decentralized electric heating system in a two-family house with a 6-room and a 2-room apartment

77'100kWh

eligible kWh, accumulated over the measure's lifetime

Funding contributionCHF 3’855

Inputs: Erstwohnung 5+ Zimmer (GEAK C), Zweitwohnung 2 Zimmer (GEAK C)

Scenario B

Replacement of a decentralized electric heating system in a single-family house (4-room apartment)

55'400kWh

eligible kWh, accumulated over the measure's lifetime

Funding contributionCHF 2’770

Inputs: Erstwohnung 4 Zimmer (GEAK C)

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.

Old systemNew system
TechnologyFixed electric, electric storage and electric underfloor single-room heaters within the scope of Annex 1.18 EnEVFixed reversible split or multi-split air conditioners (maximum 2 outdoor units per building) within the scope of Annex 1.13 EnEV
Efficiency class-A++ or better
Building categoryResidential, single-family house
Altitude above sea level1,200 m or lower
Building envelopeEnergy efficiency class D or better
Thermal protectionThe solar-shading requirements according to SIA 180 (2014) must be met.
ImplementationThe replacement and commissioning of the new system must be carried out by a qualified specialist or company.
DisposalThe consumption-relevant components of the old devices may not continue to be operated within Switzerland. Proper disposal or export must be demonstrable on request.

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. 1.Explanation (PDF format, max. 2 A4 pages) of how it is ensured that the replaced devices were properly disposed of (e.g. by means of declarations, disposal items on contractor invoices, etc.).
  2. 2.Invoice documents (PDF, PNG or JPEG format)
  3. 3.GEAK building energy certificates or a brief explanation of the CO₂ calculator input data (PDF format)
Calculation basics: symbols, units and formulasNot needed for the review, useful for recalculating▾

Symbols, Terms and Units

SymbolDescriptionUnit
Eannual electricity consumptionkWh/a
ΔEecocumulative electricity savingskWh
Aenergy reference aream²
Qspecific heat demandkWh/m²
ηutilization rate—

Calculation Formulas

Cumulative Electricity Savings

ΔEeco = (Eold - Enew) × feco × Ns

The cumulative electricity savings result from the difference between the electricity consumption of the old and new state, 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 depends on the annual heat demand of the apartments in the residential building and the utilization rate of the heat generator.

Downloads

Documentation (PDF)Complete technical documentation including calculation basisDownload DOC
Excel Calculator (XLSX)Interactive calculation tool for savingsDownload PRO

Previous measure

← HZ-02b · Replacement of Hot Water Circulation Pumps in Buildings

Next measure

HZ-03b · Retrofitting of Remote Control for Heating in Second and Holiday Homes →

Other measures in Heating Technology

HZ-01aReplacement of Electric Water Heaters in BuildingsHZ-02aReplacement of Circulation Pumps for Heating Groups in BuildingsHZ-02bReplacement of Hot Water Circulation Pumps in BuildingsHZ-03bRetrofitting of Remote Control for Heating in Second and Holiday Homes

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.

More about the EFFEL programme