I.ON Energy Services

I.ON Energy Services is an independent Swiss energy-transition installer headquartered in Rolle, in the canton of Vaud. Founded in 2020 by Dr. Oscar Axe and engineer Jean-Paul Noujeim, the company positions itself as a direct, vertically integrated installer: it carries out the initial study, installation, commissioning and long-term maintenance with its own in-house technicians rather than subcontracting the work. Its service area covers four cantons of Western Switzerland — Vaud, Geneva, Fribourg and Neuchâtel — and its technicians are drawn from the regions they serve. The company offers six main trades under one roof: solar photovoltaic panels (roof-mounted or building-integrated, with solar study, installation, grid connection and ten-year monitoring), heat pumps (air-to-water, geothermal and water-to-water), battery storage, EV charging stations, air conditioning, and cantonal Energy Performance Certificate (EPC) services. Pricing published on its website starts from CHF 16,800 for an 8 kWp solar installation after subsidies, from CHF 36,000 for an air-to-water heat pump, from CHF 6,500 for battery storage, from CHF 1,800 for an EV charging station, from CHF 3,500 for air conditioning, and from CHF 760 excluding VAT for an EPC certificate. I.ON emphasises a single point of contact from first quote to monitoring ten years after commissioning, and states that it handles all administrative procedures, including grid-operator declarations and cantonal subsidy applications. It sources equipment exclusively from recognised European market manufacturers, naming Daikin, Mitsubishi Electric, Panasonic, Vaillant, Stiebel Eltron, Buderus and Alpha Innotec for heat pumps, and BYD, LG and Fronius for batteries. The company reports more than 500 completed installations, 96% measured customer satisfaction and a 4.8 rating on Google Reviews, and describes itself as having been in operation in Rolle for five years. As a private, independent company, I.ON is not part of a larger listed group. Its brand promise rests on vertical integration — controlling the entire chain from study to maintenance — which it says allows it to contractually guarantee the performance figures announced in its quotes. It also operates an online solar simulator that lets homeowners estimate installable capacity, annual production, savings and payback period in a few minutes.

I.ON Energy Services was founded in 2020 in Rolle, in the canton of Vaud, Switzerland, by Dr. Oscar Axe and engineer Jean-Paul Noujeim. The two founders brought over a decade of combined experience in advising and implementing energy renovation projects in Switzerland. From the outset the company was conceived as an independent, direct installer rather than a sales intermediary: its stated conviction was that every home and every budget is unique, and that standardised solutions should be refused in favour of studies that account for real consumption, roof orientation, the existing heating system and the owner's long-term ambitions. The company established its headquarters in Rolle and built a service area covering four cantons of Western Switzerland — Vaud, Geneva, Fribourg and Neuchâtel. A deliberate operational choice was to recruit technicians from the regions they serve, so that a site visit represents a real local commitment and availability is an operational reality rather than a marketing promise. I.ON's business model rests on vertical integration. The company installs everything in-house, from the initial study to maintenance ten years after commissioning, and states that this control of the entire chain allows it to contractually guarantee the performance figures announced in its quotes. It also handles administrative procedures on behalf of clients, including grid-operator declarations and cantonal and federal subsidy applications. Over its first five years of operation in Rolle, the company reports more than 500 completed installations and 96% measured customer satisfaction, alongside a 4.8 rating on Google Reviews. Its service catalogue expanded to six trades under one roof: solar photovoltaic panels, heat pumps, battery storage, EV charging, air conditioning and cantonal Energy Performance Certificate (EPC) services. In air conditioning alone it reports more than 180 splits installed. On the supply side, I.ON sources exclusively from recognised European market manufacturers. For heat pumps it names Daikin, Mitsubishi Electric, Panasonic, Vaillant, Stiebel Eltron, Buderus and Alpha Innotec; for batteries it names BYD, LG and Fronius; for air conditioning it installs Daikin, Mitsubishi Electric and Panasonic wall units. The company complements its installation business with digital tools, including an online solar simulator that estimates installable capacity, annual production, savings, tax savings and payback period from a few inputs such as roof area, orientation, pitch and monthly electricity bill.

• 2025

  Company reports five years of operation in Rolle, more than 500 completed installations and 96% measured customer satisfaction.

• 2020

  I.ON Energy Services founded in Rolle, Vaud, by Dr. Oscar Axe and Jean-Paul Noujeim.

Independent, vertically integrated direct installer offering a single point of contact across six energy trades in Western Switzerland, with in-house technicians and contractual performance guarantees.

• Solar photovoltaic panels

  Roof-mounted or integrated panels with solar study, installation, grid connection and 10-year monitoring. From CHF 16,800 for 8 kWp after subsidies.

• Heat pumps

  Air-to-water, geothermal and water-to-water systems. Air-to-water from CHF 36,000; geothermal from CHF 48,000; grants of CHF 6,500–12,400.

• Battery storage

  BYD, LG or Fronius batteries enabling self-consumption rates up to 80%. From CHF 6,500.

• EV charging

  11 to 22 kW charging stations driven by solar production, optimised to sunshine hours. From CHF 1,800.

• Air conditioning

  Daikin, Mitsubishi Electric and Panasonic reversible wall units with SEER ≥ 8. From CHF 3,500.

• EPC certificate

  Cantonal Energy Performance Certificate issued by an approved expert, required for most cantonal and federal subsidies. From CHF 760 excl. VAT.

1. 1I.ON Energy Services — Solar panel & heat pump installer in Western Switzerlandion-e.ch
2. 2About | I.ON — Solar panel installer in Rolle (VD)ion-e.ch
3. 3Air Conditioning Installation, Western Switzerland | I.ONion-e.ch
4. 4Heat Pump Installation in Switzerland: Cost & Subsidies | I.ONion-e.ch
5. 5I.ON Energy Services — Wikidatawikidata.org