HOLDENER SOLAR

What HOLDENER SOLAR does

Holdener Solar is a sole proprietorship registered in Boll, Canton of Bern, Switzerland, founded by Oliver Holdener in April 2010. The company designs, plans, and installs renewable energy heating systems for residential buildings — primarily single-family houses (EFH) and multi-family houses (MFH) — across the Bern region of Switzerland. Its service portfolio spans solar thermal systems (hot water and central-heating support), photovoltaic (PV) systems, wood-based heating (pellets, wood chips, and 1/2-meter firewood), and air/water heat pumps, plus maintenance and repair services for existing heating infrastructure. Recent project references (2024–2025) include combined solar/PV/wood installations for multi-unit buildings up to 17 apartments and agricultural property conversions.

The underlying technology consists of conventional thermal and electrical renewable-energy hardware — flat-plate solar collectors, large combined thermal storage tanks (Solarkombispeicher) from 600 L to 3,800 L paired with stainless-steel domestic hot water boilers, pellet and wood-chip burners from 15 kW to 65 kW, and split or all-in-one air-source heat pumps from 4.1 kW to 12 kW. The company holds no proprietary patents or trademarks and sources technology from external partners including Jenni Energietechnik AG (a Swiss solar pioneer where Oliver Holdener previously worked as a service technician), Soltop, Solar2, and Striega-Therm AG.

Holdener Solar generates revenue through project-based, quote-driven professional services: consultation, system design, and installation of complete renewable heating systems, plus ongoing maintenance contracts. Pricing is not publicly disclosed and is negotiated per project. The go-to-market is direct, owner-led field sales with the company website as the principal lead-generation channel; there are no resellers, distributors, or marketplace channels. The company is bootstrapped, has no external investors or parent company, and operates as a single-employee business, with Oliver Holdener personally executing every project from consultation through installation. He holds the European certified Solarteur qualification (2012) and Swiss Federal Certification as Project Leader in Solar Installations (2023).

Name

HOLDENER SOLAR

Legal name

Holdener Solar

Website

https://holdener-solar.ch

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Residential Renewable Energy Installation Services

NAICS

Heating Equipment (except Warm Air Furnaces) Manufacturing (333414)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro industry

PRIMARYEUAMABAB

Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Solar Energy (PV, CSP, Rooftop & Utility-Scale)

SECONDARYEUAMABAL

Solar Thermal & CSP Systems (Collectors, Receivers, Thermal Storage, CSP EPC)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Solar Energy (PV, CSP, Rooftop & Utility-Scale)

Keywords

• Solar thermal systems
• Photovoltaic installation
• Wood heating systems
• Heat pump installation
• Renewable energy services

Headquarters

HQ city

Boll

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Solar Installation Services: Design, planning, and installation of solar thermal systems for hot water and heating support, including solar collectors, storage tanks, and integration with existing heating systems. Revenue generated through project-based installation fees.
2. Wood Heating System Installation: Installation of pellet heating, wood chip heating, and firewood heating systems. Often combined with solar installations for optimal renewable energy solutions. Project-based installation services.
3. Heat Pump Installation: Installation of air/water and brine/water heat pump systems, including integration with existing solar storage and heating infrastructure. Project-based revenue.
4. Maintenance and Repair Services: Maintenance and repair services for heating systems including circulation pump replacement, thermostat valve upgrades, and general heating system maintenance.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Holdener Solar provides end-to-end consultation, planning, and installation of renewable energy systems for residential buildings in Switzerland, primarily the Bern region. Its portfolio includes solar thermal systems for domestic hot water and central heating support, photovoltaic (PV) systems, wood-fired heating systems (pellets, wood chips, firewood), and air/water heat pumps, together with maintenance and repair of heating systems. Projects are delivered directly by owner-operator Oliver Holdener from initial consultation through to commissioning.

Product overview

Holdener Solar is a Swiss solar and renewable energy installation company offering a comprehensive portfolio of renewable energy services for residential and multi-family buildings. The core offerings include solar thermal systems for hot water production and space heating support, photovoltaic (PV) systems for solar electricity generation, wood-based heating systems (pellets, chipwood, firewood), air/water heat pumps, and associated maintenance services. The company was founded in April 2010 by Oliver Holdener and operates primarily in the Bern region, planning and installing complete solar and heating systems from single-family homes to larger multi-unit residential buildings.

Differentiator

Problem solved

Functional benefit

Products and services

• Solare Warmwasser-Anlagen (Solar Hot Water Systems)

Quantifiable outcome

• Solar hot water systems can provide up to 65% of annual hot water energy requirements
• +1 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Jenni Energietechnik AGcoreStrategic or Co-development PartnerSolar energy systems and storage technology partner. Oliver Holdener previously worked as service technician at Jenni Energietechnik AG in Oberburg, gaining extensive experience in wood heating and solar systems. Jenni is described as a solar pioneer company. Products include solar systems and storage technology.
• Groll GmbHminorChannel Partner/ Reseller/ DistributorPartner company listed in the partnerbetriebe section of Holdener Solar's links page.
• Mächler BernminorChannel Partner/ Reseller/ DistributorPartner company listed in the partnerbetriebe section of Holdener Solar's links page.
• SwissolarminorOthersSwiss industry association for solar energy (Fachverband). Provides industry representation and standards. Listed under building renovation and energy links section.

Scale indicators3 records

Recent moves4 records

Expansion highlights3 records

Market position

Competitive moat3 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/holdener-solar

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about HOLDENER SOLAR