Name

SAK

Legal name

St. Gallisch-Appenzellische Kraftwerke AG

Website

https://sak.ch

Company type

Private

Founded year

1915

Operating status

Operating

Headcount range

251–500 employees

Ownership category

akta.pro rank

Product category

Regional Energy Utility Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Solar Electric Power Generation (221114), Hydroelectric Power Generation (221111), Wind Electric Power Generation (221115), Electric Power Transmission, Control, and Distribution (22112)

SIC

Electric Services (4911), Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Distributed Generation (DG) Solar & Small Wind (EUAMAJAD)

akta.pro secondary industries

Renewable Distributed Generation (Rooftop/Onsite Solar, Small Wind, Small Hydro) (EUACALAJ), Microgrid Development, EPC & Integration (EUAMAJAB), Resilience & Backup Power Solutions (Critical Facilities, Islanding) (EUAMAJAK)

Keywords

• Electricity supply services
• Energy distribution networks
• Fiber optic internet
• Renewable energy solutions
• District heating services

Headquarters

HQ city

Stallen

HQ country

Switzerland

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Supply & Distribution: SAK generates and distributes electricity to private and business customers in its service area. Revenue comes from electricity sales (energy component) and network usage fees (grid tariffs). The company has been reducing electricity prices for 2026 due to lower market procurement costs. Pricing is regulated and publicly disclosed.
2. Telecommunications (SAK Digital): SAK Digital offers internet (fiber/DSL up to 10 Gbit/s), IPTV (275+ channels), VoIP telephony, and mobile services to private and business customers. Revenue is recurring from monthly subscriptions. Products include TV S/M/L tiers and mobile plans.
3. Energy Solutions (onergy AG): Through its subsidiary SAK onergy AG, SAK provides 360-degree energy solutions including photovoltaic systems, battery storage, heat pumps, EV charging stations, and energy communities (vZEV/LEG). Revenue includes product sales, installation services, and potentially contracting/mini-contracting models. The company also offers financing through partner Investerra AG.
4. Network Services & Infrastructure: SAK operates electricity distribution networks and fiber optic networks, charging grid connection fees and network usage fees. Services include technical services for municipalities and utilities, network planning, and maintenance. Metering costs are separately charged from 2026 onwards.
5. Heat Supply & District Heating (Wärmeverbund): SAK operates district heating networks (Wärmeverbund) supplying heat energy to residential and commercial buildings, with general supply conditions (ALBW) documented.
6. Electrolyser / Hydrogen Production: SAK has a hydrogen production facility (Wasserstoffproduktion) listed under its operational locations, representing a diversification into clean energy gases.

Pricing tiers

Go-to-market motion4 records

Distribution channels6 records

Marketing channels9 records

Core offering

SAK generates and distributes electricity to residential, commercial, and municipal customers across Eastern Switzerland, operating a vertically integrated stack from generation (hydroelectric, solar, wind, wood-fired CHP, hydrogen) through grid distribution to retail supply. Through wholly-owned subsidiary SAK Digital, it offers internet, TV, phone, and mobile telecommunications over its own fiber optic network, and through SAK onergy AG it sells and installs turnkey renewable energy solutions (photovoltaics, battery storage, heat pumps, EV charging stations) plus district heating (Wärmeverbund) and grid services for utilities and municipalities.

Product overview

SAK (St.Gallisch-Appenzellische Kraftwerke AG) operates as an integrated energy and telecommunications utility serving Eastern Switzerland. The company offers a comprehensive product portfolio organized around three main pillars: (1) Energy Solutions including electricity supply, photovoltaic systems, heat pumps, battery storage, and e-mobility charging solutions (primarily through the Onergy subsidiary), (2) Telecommunications via the SAK Digital sub-brand offering internet, TV (SAK TV with 210+ channels), phone, and mobile services, and (3) Grid Infrastructure services including network operations, technical services, and flexibility management. Key products include SAKsmart for home energy management, Eigenverbrauchslösungen for energy communities (ZEV/EVG), and fiber optic connectivity. SAK Digital provides mobile plans starting at 19 CHF/month, internet from 33 CHF/month, and TV packages from 17 CHF/month, while the Onergy brand handles renewable energy installations including photovoltaics, heat pumps, and EV charging stations.

Differentiator

Problem solved

Functional benefit

Brands

• SAK onergy AG: Energy solutions subsidiary offering Photovoltaik, Wärmepumpe (heat pumps), E-Ladestationen (charging stations), Batteriespeicher (battery storage), and energy management systems for residential and commercial customers.
• SAK Digital

Products and services

• Strom (Electricity Supply) Regulated retail electricity supply for private and business customers in St. Gallen, Appenzell, and Eastern Switzerland, including standard and nature-made renewable options, with publicly disclosed per-kWh tariffs and a 2026 price reduction to 13.97 Rp./kWh for the H4 (4-person) household.
• Photovoltaik (Photovoltaic Systems) Turnkey photovoltaic (solar) systems for residential and commercial customers, supplied and installed by subsidiary SAK onergy AG, including financing options via partner Investerra AG and integration with battery storage and energy management.
• Wärmepumpe (Heat Pump Solutions) Air-water and ground-source heat pump systems for environmentally friendly building heating, delivered as turnkey installations by SAK onergy AG using technology partner Viessmann, with financing options and contracting/mini-contracting models.
• E-Mobilität (EV Charging Solutions) Electric vehicle wall boxes and charging stations for residential and commercial properties, supplied and installed by SAK onergy AG, integrated with PV systems and the SAKsmart energy management platform.
• Batteriespeicher (Battery Storage) Battery storage solutions sold and installed alongside PV systems by SAK onergy AG to maximize self-consumption of solar electricity and enable backup power and energy independence.
• Glasfaser (Fiber Internet) Fiber optic internet access delivered over SAK's owned Glasfasernetz at speeds from 20 Mbit/s up to 10 Gbit/s, available to residential and business customers where fiber infrastructure exists (DSL fallback where it does not).
• SAK TV Television service offering over 275 channels (243 in HD) with replay TV (up to 7 days) and up to 500 recordings, available via set-top box and the SAK TV app on iOS, Android, Android TV, and Apple TV; tiers from CHF 17/month.
• SAK Mobile Mobile telephony plans starting at CHF 19/month, including a Mobile Young plan (under 26) with 500 minutes and an FC St. Gallen fan edition called 'Grüewiss' also at CHF 19/month.
• SAK Internet Residential and business internet subscriptions delivered via SAK's fiber (and DSL where needed) from 20 Mbit/s to 10 Gbit/s, starting at CHF 33/month.
• SAK Telefon (VoIP Phone) VoIP telephony service from CHF 10/month, with Basis (per-second billing), Comfort (600 minutes to CH networks), and Plus (1,200 minutes) tiers, each including 10 phone numbers and 10 simultaneous channels.
• Wärmeverbund (District Heating) District heating (Wärmeverbund) network supplying heat energy to residential and commercial buildings in SAK's service area, governed by documented general supply conditions (ALBW).
• Netz (Grid Services) Electricity and fiber network services for businesses, utilities (EVU), and municipalities, including network connection, technical services, network planning, maintenance, and flexibility management.
• Eigenverbrauchslösungen (Energy Communities ZEV / vZEV / LEG) Energy community solutions enabling customers to produce, consume, and share locally generated solar electricity, including virtual energy communities (vZEV) and local energy communities (LEG), operated by SAK onergy AG.
• Rechenzentrum (Data Center Services) Data center services for business customers, providing IT infrastructure, hosted services, and connectivity solutions delivered via SAK's data center partner Rechenzentrum Ostschweiz AG.
• VitaLink (Senior Monitoring Service) App-based monitoring service for elderly or otherwise impaired individuals, offering emergency detection and notification, health monitoring by care professionals, and administrative management, delivered with technology partner DomoHealth AG.

Quantifiable outcome

• 4.4% annual cost reduction for average 4-person household in 2026 vs 2025 (~CHF 60 savings)
• +3 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability2 records

Feature6 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• onergy AG (SAK onergy AG)coreStrategic or Co-development PartnerSAK onergy AG is a wholly-owned subsidiary of SAK that provides comprehensive energy solutions including photovoltaic systems, battery storage, heat pumps, and EV charging stations. It operates independently with its own website (onergy.ch) and offices at Bildweiherstrasse 9, St.Gallen-Winkeln. onergy also manages energy communities (vZEV/LEG) and flexibility markets.
• SN Energie AGcoreStrategic or Co-development PartnerSN Energie AG is a co-development partner with SAK in the Windpark Grotwind project on St. Margrethenberg. The wind park will supply approximately 5,000 households with regional renewable electricity. SAK, SN Energie AG, and Grotwind GmbH are joint developers of this project.
• Grotwind GmbHcoreStrategic or Co-development PartnerGrotwind GmbH is a joint development partner with SAK in the Windpark Grotwind project. Grotwind GmbH provides wind energy expertise and the project site on St. Margrethenberg. Together with SN Energie AG and SAK, the three entities are developing a wind park for ~5,000 households.
• Investerra AGminorImplementation/ SI/ Consulting PartnerInvesterra AG is SAK onergy AG's financing partner, offering individually planned financing for heat pump installations and renewable energy systems. SAK onergy directs customers to Investerra for financing options, creating a referral relationship that facilitates customer conversions.
• FWS (Fachverein Wärmepumpen Schweiz)minorOthersFWS (Swiss Heat Pump Association) is listed as a partner on SAK onergy AG's website, indicating collaboration or endorsement in the heat pump sector. FWS likely provides certification and standards alignment for heat pump installations.
• Energieagentur St. GallenminorStrategic or Co-development PartnerEnergieagentur St. Gallen (St. Gallen Energy Agency) is displayed as a partner on SAK onergy AG's website, indicating collaboration on energy consulting and energy transition initiatives in the St. Gallen region.
• ITrockt!minorGTM or Marketing PartnerITrockt! is a partner organizing the ERFA Group KMU-IT Trends events with SAK. This platform provides entrepreneurs and IT professionals in Eastern Switzerland with opportunities to exchange on digital challenges and trends. Events scheduled for March, April, June, and October 2026.
• FestlandminorGTM or Marketing PartnerFestland is an innovation partner for SAK's ERFA Group KMU-IT Trends events. Benedikt Skalsky from Festland will present on 'From product idea to prototype with AI' at the April 2026 ERFA event.
• AxpominorStrategic or Co-development PartnerAxpo is mentioned as a upstream grid provider (Vorlieferant) whose grid costs affect SAK's network tariff calculations. Axpo provides transmission services that flow into SAK's electricity supply chain.
• SwissgridminorOthersSwissgrid is the Swiss transmission grid operator (Übertragungsnetzbetreiber) whose system services (SDL) and transmission costs are components of SAK's network tariffs. SDL costs decreased from 0.55 to 0.27 Rp./kWh in 2026.

Scale indicators7 records

Direct peers

• Groupe E: Fribourg-based integrated energy and telecom provider serving Western Switzerland with generation, distribution, fiber, and energy solutions. Closely mirrors SAK's vertically integrated regional utility profile.
• EKZ (Elektrizitätswerke des Kantons Zürich): Canton-level integrated electric utility serving the Zurich region with generation, distribution, fiber telecom, and energy solutions. Most structurally comparable to SAK in scale, scope, and cantonal utility charter, making it the closest direct peer.
• EWS Energie AG: Regional electric utility serving the canton of Schwyz with comparable vertically integrated activities including generation, distribution, fiber, and renewable energy solutions. Closely matches SAK's regional utility profile and product breadth.
• AEW Energie AG: Aargau cantonal energy utility with electricity generation, distribution, telecom (including fiber), and energy solutions. Direct peer given similar canton-level franchise, vertically integrated scope, and product portfolio mirroring SAK.
• CKW (Centralschweizerische Kraftwerke): Lucerne-based regional utility offering generation, distribution, energy services, and fiber telecom to Central Switzerland. Comparable in customer segments, product mix, and integrated utility business model to SAK.
• EBL (Elektra Baselland): Basel-Land regional utility providing electricity, heating, telecommunications, and energy services. Comparable regional integrated utility structure with a similar mix of regulated and competitive revenue streams.

Broad incumbents

• Axpo: Switzerland's largest power producer and a major transmission/distribution player with broad activities including trading, generation, and grid services. Acts as SAK's upstream provider and a broader incumbent in overlapping generation and trading markets.
• BKW Energie AG: Bern-based large integrated energy company with generation, distribution, network services, and energy solutions across Switzerland. A larger incumbent with broader scope and a publicly listed structure.

Regional players

• SN Energie AG: Swiss regional energy company co-developing the Windpark Grotwind project with SAK. Comparable in regional utility scope and hydro/wind generation, though with a different primary service area.
• Repower: Graubünden-based energy company with generation (predominantly hydro), grid operations, and energy trading across Switzerland and Italy. Comparable renewable-heavy generation mix and regional focus, though serving a different primary geography.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

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

M&A

Investments1 record

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

Frequently asked questions about SAK