Solar, heat pump and battery installation in Switzerland
“1,500+ jobs completed by I.ON Energy Services across Switzerland: solar, heat pump, battery and EV charger installations and CECB energy certificates.”
I.ON Energy Services
I.ON Energy Services is a Swiss company specializing in solar photovoltaic and heat pump installation.
Products & services
Questions & answers
How quickly will I receive a quote?
“After your request, an I.ON advisor gets back to you and you receive a quote within 7 days. For projects requiring a technical visit (heat pump, complex renovation), the detailed quote is prepared after the on-site visit.”
Which regions does I.ON cover?
“I.ON operates throughout Western Switzerland, notably in the cantons of Vaud, Geneva, Fribourg and Neuchâtel. Our team is based in Rolle, in the canton of Vaud.”
Who is I.ON?
“I.ON Energy Services Sàrl is a Swiss company based in Rolle, in the canton of Vaud. We design and install solar systems, heat pumps, battery storage, EV chargers and air conditioning, and issue EPC (CECB/GEAK) certificates. The study, installation and follow-up are handled by our in-house team.”
Is the study of my project really free?
“Yes. The study of your project (roof or heating analysis, sizing, grant estimate) is free of charge and without obligation. You can request it via the contact form or directly online with our configurator.”
Do you handle the administrative procedures?
“Yes. Grant applications (Pronovo, cantonal and municipal schemes), notifications to the grid operator and permits: I.ON handles all administrative steps related to your project.”
What is a reversible air conditioning unit?
“A reversible air conditioning unit (or air-to-air heat pump) reverses its cycle to cool in summer and heat in the shoulder seasons. It effectively replaces a direct electric heater while providing excellent summer comfort. The heating efficiency (COP) remains above 4 in the majority of cases.”
How much does air conditioning installation cost?
“For a single-zone wall-mounted split (one room), budget between 3,500 and 5,500 CHF all-in. For a multi-zone system (3 to 5 rooms), between 9,000 and 14,500 CHF depending on brand and technology. The quote is prepared after a technical visit.”
Is a permit required to install air conditioning?
“In Western Switzerland, installing an outdoor unit may require a declaration or permit depending on the municipality and co-ownership. I.ON handles all administrative steps. For buildings in co-ownership (PPE), the approval of the owners' assembly is generally required before installation.”
What is the lifespan of an air conditioning unit?
“The Daikin, Mitsubishi and Panasonic units we install have a typical lifespan of 12 to 20 years with regular maintenance. The manufacturer warranty is 5 years, extended to 10 years on certain premium references.”
How much does solar battery storage cost in Switzerland?
“A battery storage system installed by I.ON starts at CHF 6,500 for 10 kWh (BYD Battery-Box). A Huawei Luna 2000 or a Fronius Reserva of equivalent capacity ranges from CHF 7,000 to CHF 9,000, installation included. The price depends on capacity, brand and compatibility with your existing inverter.”
Is a solar battery worth it in Switzerland?
“Without a battery, a household self-consumes about 30% of its solar production. With a battery, that figure rises to 70–80%. For an 8 kWp installation in Western Switzerland, the extra saving is CHF 600 to 900 per year. The payback period of a battery is 8 to 12 years depending on your supplier's electricity rate.”
What battery capacity for a single-family home?
“For a 4–5 room house consuming 4,000 to 5,500 kWh per year, a 10 kWh battery is recommended. It covers evening and night consumption. For a house with a heat pump or an EV charger, scale up to 13–15 kWh. I.ON sizes the battery based on your actual consumption curve (12-month meter reading).”
How does a heat pump work?
“A heat pump captures thermal energy from the air, ground or water and concentrates it to heat your home. To produce 100 % of the heat you need, it only consumes 25 to 35 % in electricity; the remaining 65 to 75 % come free from the environment.”
What COP can I expect from an I.ON heat pump?
“The seasonal COP (SCOP) varies by type: 3.5 to 4.5 for air-to-water, 4.5 to 5.5 for vertical geothermal. We contractually guarantee the seasonal COP calculated during the study.”
How much does heat pump installation cost in Switzerland?
“Budget 32,000 to 48,000 CHF gross for a well-sized air-to-water unit, 55,000 to 80,000 CHF for geothermal. Cantonal grants amount to 4,000 to 9,000 CHF depending on the canton and output. With tax deductions, the effective net cost falls to 21,000–32,000 CHF for a standard air-to-water unit.”
Does a heat pump really work in winter?
“Yes. Modern air-to-water heat pumps (Daikin Altherma 4 H, Vaillant aroTHERM plus, Stiebel Eltron WPL-A, Panasonic Aquarea T-CAP, Alpha Innotec hybrox, Buderus Logatherm WLW176i) operate down to -20 °C with a reduced COP. Geothermal is never affected by outdoor temperature since it draws from the stable-temperature ground. No electric backup is required for correctly sized installations.”
Data formats & record details
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- Entity ID
- urn:readyscan:entity:i-on-energy-services-q140472879
- Material fingerprint
- fnv1a64:77622c8643e230f7
- Entity revision
- fnv1a64:70d9ac64a1e11fd6
- Published
- 2026-10-25
- Modified
- 2026-10-25
- Source summary
- I.ON Energy Services: Swiss company specializing in solar photovoltaic and heat pump installation. Website: https://www.ion-e.ch.