Hassler Energia

What Hassler Energia does

Hassler Energia Alternativa AG is a second-generation, family-owned Swiss solar energy installer headquartered in Zillis, Canton Graubünden, founded in 1985 by Christian Hassler. The company designs, sells, and installs photovoltaic (PV) systems for residential single- and multi-family homes, property cooperatives (ZEV/LEG energy communities), agricultural and alpine operations, commercial enterprises, municipalities, and public-sector clients throughout eastern Switzerland. Its product portfolio spans rooftop and facade-mounted PV, building-integrated photovoltaics (the Solnow BIPV system, now operated by a separate entity), lithium-iron-phosphate and salt-battery storage (AC- and DC-coupled), intelligent EV wallboxes with solar-surplus charging, and off-grid island systems (pre-configured packages "Rehbock" and "Platzhirsch") for remote mountain locations without grid access. It is also the exclusive Graubünden distributor for ÖkoFEN wood-pellet heating systems, addressing thermal energy alongside electricity.

The business operates on a sales-led, direct-to-customer model with on-site consultation (300 CHF fee for new customers, credited on order). Pricing is project-based, averaging approximately 30,000 CHF for a residential PV system, plus typical add-ons of ~8,000 CHF for battery storage and ~1,500 CHF per wallbox, with federal and cantonal subsidies of 4,000–9,000 CHF available. Revenue is generated primarily through one-time installation project fees, supplemented by recurring revenue from tiered maintenance contracts (PV SIMPEL and PV INTENSIV extending warranties to 3–5 years) and pellet heating service agreements. The company holds Swissolar "Solarprofis" quality certification and has won multiple Swiss Solar Prizes (2000, 2012, 2015, 2019). As of 2024, it has approximately 25 employees and reports installation slots fully booked through 2026 following its 2024 divestiture of the solar thermal business to Lucchinetti Haustechnik.

Name

Hassler Energia

Legal name

Hassler Energia Alternativa AG

Website

https://hassler-energia.ch

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

1–10 employees

Short description

Hassler Energia is a second-generation Swiss solar installer in Canton Graubünden that designs, sells, and maintains photovoltaic systems, battery storage, EV wallboxes, and off-grid solar packages for residential, commercial, agricultural, and municipal customers across eastern Switzerland.

Ownership category

akta.pro rank

Product category

Solar Energy Installation Services

NAICS

Solar Electric Power Generation (221114)

akta.pro primary industry

Commissioning, Testing & Energization Services (Pre-Commissioning, Grid Code Compliance) (EUAMAFAK)

akta.pro secondary industry

Renewable Energy Asset Management (Solar/Wind/Hydro/Geothermal) (EUAEAMAB)

Keywords

• Photovoltaic installations
• Solar energy systems
• Battery storage solutions
• Off-grid solar systems
• Pellet heating systems

Headquarters

HQ city

Zillis

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales

Revenue model

1. Solar Installation Services: Design, planning, and installation of photovoltaic systems for residential, commercial, and industrial customers. Includes site assessment, system design, permitting assistance, and installation. Revenue generated through one-time project fees based on system size and complexity.
2. Equipment Sales: Sale of solar panels, inverters, batteries, mounting systems, and related components. Customers purchase equipment as part of installation projects or for existing systems.
3. Service and Maintenance Contracts: Ongoing service agreements including PV SIMPEL (basic maintenance, biennial site visits, extends warranty to 3 years), PV INTENSIV (remote monitoring, semi-annual production checks, drone thermography, extends warranty to 5 years), and pellet heating service contracts. Revenue recurring through annual or multi-year contract fees.
4. Pellet Heating Systems: Sale and installation of ÖkoFEN pellet heating systems as exclusive Graubünden distributor. Includes ongoing maintenance services for heating systems.
5. Solar Consulting: Professional site analysis and consultation services. 300 CHF fee for new customers (credited toward installation), free for existing customers. Impulse consulting for heating system upgrades offered free for systems older than 10 years.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels7 records

Core offering

Hassler Energia designs, sells, installs, and maintains integrated renewable energy solutions for customers in the canton of Graubünden, Switzerland. Their offerings center on photovoltaic solar systems (rooftop, building-integrated, and facade-mounted) complemented by battery storage, EV charging stations, and pellet heating systems, with specialized expertise in off-grid/standalone systems for alpine locations without grid access.

Product overview

Hassler Energia offers a portfolio of renewable energy products centered on solar photovoltaics, supplemented by battery storage, EV charging infrastructure, off-grid (island) solar systems, and pellet heating. Its core product is solar PV installations (Solaranlagen) for residential, commercial, agricultural, and public-sector customers, available as rooftop-mounted, building-integrated (Indach/Solnow), or facade-mounted systems, often combined with ZEV/LEG community energy solutions. Battery storage (Batteriespeicher) in AC or DC configurations and intelligent EV charging stations (E-Ladestationen/Wallbox) extend self-consumption and mobility use cases. Off-grid island systems (Inselanlagen) serve remote mountain locations via pre-configured packages (Rehbock, Platzhirsch). Pellet heating systems (ÖkoFEN) address thermal energy needs. Service modules include professional solar consultation, and tiered maintenance contracts (PV/PELLETS SIMPEL and INTENSIV) covering both PV and heating systems.

Differentiator

Problem solved

Functional benefit

Brands

• Solnow: Building-integrated solar PV system where the solar system completely replaces roof tiles
• Omegasol

Products and services

• Solaranlagen (Solar PV Systems)

Quantifiable outcome

• Up to 90% self-consumption rate with battery storage systems
• +4 more outcomes

Named customers6 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core, minor and strategic.

• ÖkoFENcoreChannel Partner/ Reseller/ DistributorExclusive distribution partner for ÖkoFEN pellet heating systems in Canton Graubünden. ÖkoFEN is an Austrian manufacturer with nearly 30 years of experience in innovative heating systems. Hassler Energia provides sales, installation, and ongoing service for ÖkoFEN products.
• Energie Genossenschaft SchweizminorStrategic or Co-development PartnerSwiss Energy Cooperative - strategic partner for energy community initiatives and shared solar projects (ZEV/LEG).
• ewz (Elektrizitätswerk der Stadt Zürich)coreGTM or Marketing PartnerMajor utility partner providing promotional support and subsidies for private EV charging stations. Collaboration on promoting solar and EV charging solutions to customers.
• SolnowstrategicStrategic or Co-development PartnerSolnow is a company founded by Christian Hassler (former Hassler Energia) that developed the building-integrated photovoltaic (BIPV) system. Originally part of Hassler Energia, Solnow is now an independent company. Hassler Energia continues to install Solnow products and the Solnow system won the 2025 Sustainability Prize.
• SwissolarcoreStrategic or Co-development PartnerSwiss solar industry association. Hassler Energia holds the 'Solarprofis' quality label granted by Swissolar, which provides certification, training, and industry representation.

Scale indicators8 records

Recent moves9 records

Expansion highlights5 records

Others

• ÖkoFEN: Austrian manufacturer of wood pellet heating systems and exclusive heating technology partner for Hassler Energia in Canton Graubünden. Comparable as upstream supplier enabling Hassler's pellet heating distribution and service business.
• Fronius International GmbH: Austrian manufacturer of solar inverters, energy storage, and welding equipment; current technology partner of Hassler Energia. Comparable as an enabling technology provider in the Swiss/European solar ecosystem whose products are integrated into Hassler installations.

Direct peers

• Tritec Energy AG: Swiss solar installer providing photovoltaic and storage solutions for residential and commercial customers. Comparable as a similarly-positioned mid-sized Swiss solar EPC competitor with installation, battery storage, and EV charging offerings targeting the same end-customer profile.
• 3S Swiss Solar Solutions AG: Swiss company manufacturing and installing integrated solar solutions including roof-integrated PV systems. Comparable for BIPV expertise, building-integrated photovoltaic offerings, and Swiss market presence with overlapping customer base.
• Helion Solar AG: Swiss solar EPC providing photovoltaic installation services for residential and commercial customers across multiple cantons. Directly comparable as a similarly-sized Swiss regional solar installer competing for the same end customers with overlapping product offerings (PV, storage, EV charging).
• Repower AG: Swiss energy company headquartered in Graubünden with operations in electricity generation, distribution, and energy services including solar. The most direct geographic peer given shared Canton Graubünden presence and overlapping customer base.

Broad incumbents

• Solarwatt GmbH: German solar PV company offering residential solar systems, battery storage, and energy management solutions. Comparable as a European residential solar specialist with similar product portfolio (PV, storage, EV charging) and customer type, though operating at greater scale across multiple markets.
• Energie 360° AG: Swiss energy service provider offering natural gas, heat, and increasingly renewable energy solutions including solar installations to residential and commercial customers. Comparable as a broader Swiss energy solutions provider that competes for the same end-customer wallet share.
• BKW AG: Large Swiss energy company providing generation, distribution, and energy services including solar PV solutions across Switzerland. Compares as a much larger incumbent with broader geographic coverage, deeper resources, and increasingly overlapping solar installation services.
• Meyer Burger Technology AG: Swiss-headquartered solar module and equipment manufacturer transitioning into European solar EPC operations. Comparable as a Swiss player in the solar value chain, though positioned upstream in module manufacturing and downstream in utility-scale EPC.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/hassler-energia

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

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 Hassler Energia