What Fenix Group does

Fenix Group is a privately-held Czech manufacturer founded in 1990 that designs, produces, and distributes electric radiant heating systems and battery energy storage solutions. The company serves residential, commercial, industrial, and agricultural customers across more than 52 countries through a network of distributors and direct enterprise sales. Its heating portfolio includes four core product families — ECOSUN radiant panels, ECOFLOOR heating cables, ECOFILM heating foils, and ECOFLEX electric convectors — complemented by thermostats, supplementary products, and the Fenix Control smart heating application compatible with Google Home and Amazon Alexa.

The company's technology platform centers on the FENIX Energy Concept, which integrates electric heating with photovoltaic generation, battery storage, and a proprietary control algorithm developed with Czech Technical University's UCEEB. Battery storage products span home systems (HES, 13.7–41.1 kWh), medium-sized modular containers (MES), and industrial systems (DES, SAS) — with the SAS3 (1MW/2.4MWh, expandable to 3 MWh) certified in March 2025 for frequency containment reserve (FCR) services to Czech transmission system operator ČEPS. A proprietary inverter manufactured by Škoda Electric is a key component in the BESS line, and the AERS subsidiary is exploring second-life automotive battery applications in partnership with Škoda Auto and IBG Česko.

Fenix Group generates revenue primarily through hardware sales — heating products distributed via channel partners across 52+ countries, and battery storage systems sold directly to industrial customers — plus an emerging revenue stream from ancillary grid services (FCR and SVR capacity) delivered to ČEPS through aggregator Nano Energies. The group operates two production facilities: the main plant in Jeseník, Czech Republic (3 GWh annual consumption, 891 kWp solar, ~3 MWh storage), and a new 4,300 m² plant in Banská Bystrica, Slovakia opened in August 2022. Ownership remains concentrated with founder Cyril Svozil and Cyril Svozil Jr. (Chairman), with no external institutional investment, private equity, or public listing indicated.

Name

Fenix Group

Legal name

FENIX Group a.s.

Website

https://fenixgroup.cz

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

51–100 employees

Short description

Fenix Group is a Czech manufacturer founded in 1990 that designs and produces electric radiant heating systems (panels, cables, films, convectors) and battery energy storage solutions, serving residential, commercial, industrial, and agricultural customers across 52+ countries via distributors and direct enterprise sales.

Ownership category

akta.pro rank

Product category

Electric Heating Systems

NAICS

Electric Power Generation, Transmission and Distribution (2211), Electric Power Generation (22111)

SIC

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

akta.pro primary industry

DERMS Platforms & Utility Integration (ADMS/SCADA Integration, Hosting Capacity) (EUAFAHAF)

Keywords

• Electric heating systems
• Battery energy storage
• Radiant heating panels
• Electric floor heating
• Energy storage solutions

Headquarters

HQ city

Ceska

HQ country

Czechia

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Electric Radiant Heating Products: Sale of heating products including radiant panels (ECOSUN), heating cables (ECOFLOOR), heating films (ECOFILM), electric convectors (ECOFLEX), thermostats and controls. Products sold to distributors, installers, and end customers in over 52 countries.
2. Battery Storage Systems: Sale of home battery storage (HES), industrial battery storage (MES, DES, SAS) systems for energy management, PV integration, and grid services.
3. Ancillary Grid Services: Revenue from providing frequency containment reserve (FCR) services to ČEPS through battery storage systems. Compensation received for reserved capacity and actual activation of grid balancing services.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Fenix Group is a Czech manufacturer that designs, produces, and sells electric radiant heating systems (ECOSUN panels, ECOFLOOR cables, ECOFILM foils, ECOFLEX convectors) and battery energy storage systems (HES for homes, MES, DES, and SAS for industrial applications). The company integrates its heating portfolio with photovoltaic systems and proprietary energy management algorithms that enable automatic trading on the electricity spot market, peak shaving, and ancillary grid services.

Product overview

Fenix Group is a Czech manufacturer offering a complete range of electric heating systems and battery energy storage solutions. The product portfolio centers on four core heating product lines: ECOSUN® radiant heating panels, ECOFLOOR® heating cable systems, ECOFILM® heating film systems, and ECOFLEX® electric convectors, complemented by thermostats/controls and supplementary products. The company has expanded into battery storage systems (HES for homes, MES for medium applications, DES and SAS for industrial use) forming an integrated FENIX Energy Concept that combines electric heating with renewable sources and smart energy management. All products are managed through the Fenix Control app platform for smart home integration.

Differentiator

Problem solved

Functional benefit

Brands

• ECOSUN: Radiant heating panels - infrared heating panels suitable for various applications
• ECOFLOOR
• ECOFILM
• ECOFLEX
• SOLIUS Digital
• HES
• MES
• SAS
• DES

Products and services

• ECOSUN Radiant Heating Panels Economical and efficient infrared heating panels suitable for a wide range of residential, commercial, and industrial applications. Available in diverse designs, materials, and power outputs.
• ECOFLOOR Heating Cable Systems Electric floor heating solutions using heating cables, suitable for both indoor and outdoor heating applications. Cost-effective to run when combined with suitable controllers.
• ECOFILM Heating Film Systems Electric heating foils for large-surface ceiling or floor heating of interior spaces, used for efficient radiant heating installation.
• ECOFLEX Electric Convectors Convection and radiant convection heaters for occasionally used buildings where rapid heating reaction is needed, combining radiant and convective heating.
• Thermostats and Controls Control systems including smart WiFi thermostats, plug thermostats, and central regulation systems (BMR) that ensure electric heating operates seamlessly and remains energy efficient.
• HES Battery Storage All-in-one home battery storage system with 10kW inverter, dual MPPT inputs (up to 12kWp), and capacities of 13.7, 27.4, or 41.1 kWh. Includes spot price trading optimization and integrates with PV systems.
• MES Universal Container Storage Medium-sized modular container battery storage system providing capacity and power for universal energy storage applications in commercial and light industrial settings.
• DES Container Storage Compact container battery storage with up to 328 kWh capacity and 300 kW output, used for reducing reserved power, bridging power peaks (e.g., EV charging), storing renewable energy, and backup in island mode.
• SAS Peak Shaving Accumulation Station Industrial battery storage system for reducing maximum reserved power by spreading consumption over 24 hours, reducing quarter-hour peaks, providing outage protection, and maximizing PV energy use. Available as in-house or container solution.
• Fenix Control App Smart heating control application providing full control over Fenix heating systems via mobile device. Supports multiple buildings, Manual/Weekly/Booster/Frost Protection modes, voice control (Google Home, Alexa), and energy monitoring by heating circuits.

Quantifiable outcome

• Family house in Omice achieved average electricity price of 2.50 CZK/kWh through spot market trading, saving 40,000 CZK annually compared to petrol car fuel costs
• +3 more outcomes

Named customers10 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

Integration3 records

AI capability4 records

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Nano EnergiescoreStrategic or Co-development Partner · 24 April 2025Aggregator partner that registers Fenix BESS reservations with ČEPS and activates frequency containment reserve services. Through Nano Energies, Fenix delivers 1MW to the grid seven times per activation for grid balancing services.
• Czech Technical University in Prague (CTU) - UCEEBcoreStrategic or Co-development PartnerUniversity Centre for Energy Efficient Buildings (UCEEB) at CTU collaborates with Fenix on development of proprietary control algorithms for the FENIX Energy Concept. UCEEB provides independent validation of pilot project results and conducts research on electric radiant heating efficiency.
• Škoda ElectriccoreTechnology or IntegrationŠkoda Electric manufactures unique inverters for Fenix's BESS (Battery Energy Storage Systems). The proprietary inverter is a key component of the battery storage systems handling SPOT trading, peak shaving, and grid services.
• ČEPScoreOthersCzech Transmission System Operator that certifies and receives ancillary services from Fenix's battery storage systems. Fenix provides frequency containment reserve (FCR) services to ensure stable grid frequency.
• TECOminorStrategic or Co-development PartnerTechnology partner in the CAMEB (National Centre of Competence) project for family house in Omice, involving smart home integration with the FENIX Energy Concept.
• S-PowerminorChannel Partner/ Reseller/ DistributorPV system provider participating in CAMEB pilot project with Fenix for integrated energy solution in family house.
• WAFEminorStrategic or Co-development PartnerPartner in CAMEB research project for advanced building technologies and energy efficient solutions.
• IBG ČeskominorStrategic or Co-development PartnerPartner with AERS s.r.o. (Fenix Group subsidiary) on second-life battery storage projects using automotive batteries, including cooperation with Škoda Auto.
• ELMARK d.o.o.minorChannel Partner/ Reseller/ DistributorSerbian company acquired in January 2021 and joined as thirteenth member of Fenix Group. Represents Fenix's expansion into Serbian market.

Scale indicators7 records

Recent moves7 records

Expansion highlights7 records

Broad incumbents

• Schneider Electric: Global energy management and automation company with a broad portfolio that spans building heating controls, residential and commercial BESS, and grid services platforms. Competes with Fenix across multiple product lines and is the kind of large incumbent that could acquire or squeeze Fenix's energy management business.
• Sungrow: Global inverter and BESS provider with residential, commercial, and utility-scale products. Comparable to Fenix's BESS offerings (HES, MES, SAS) in terms of integrated inverter-plus-storage architecture and European market presence.
• Tesla Energy: Tesla's energy business includes Powerwall residential BESS and larger Megapack/Powerpack systems, plus virtual power plant software (Autobidder). Broad incumbent that competes with Fenix across the HES, MES, DES, and SAS BESS portfolio and is rapidly expanding into European markets.
• BYD Energy Storage: Global BESS provider and vertically integrated cell manufacturer with significant European BESS installations. Competes with Fenix in the commercial and industrial BESS segments (comparable to Fenix MES, DES, and SAS) at substantially greater scale.

Direct peers

• nVent Electric (Nuheat): nVent's Nuheat division manufactures electric floor heating mats and thermostats, directly overlapping with Fenix's ECOFLOOR cable systems and Fenix Control thermostat offering in the North American and European heating markets.
• Sonnen: German residential battery storage specialist (now owned by Shell) offering the sonnenBatterie product line. Directly comparable to Fenix's HES home storage system, including PV integration, energy management software, and virtual power plant participation.
• Rehau: German manufacturer of building solutions including underfloor heating systems (both hydronic and electric), with strong European distribution. Direct peer to Fenix's ECOFLOOR and ECOFILM systems in the residential and commercial heating markets.
• Devi (Danfoss): Devi, now part of Danfoss, is a European manufacturer of electric heating cables and mats with strong brand recognition. Directly comparable to Fenix's ECOFLOOR cable systems in both residential and commercial heating segments.
• Warmup: UK-based manufacturer of electric floor heating systems (cables, mats, films) and now also offers compatible thermostats. Closest direct competitor to Fenix's ECOFLOOR and ECOFILM product lines in the residential and commercial radiant heating market.

Emerging players

• Pylontech: Chinese battery storage manufacturer widely used as a residential and small-commercial BESS supplier across Europe. Comparable to Fenix HES in the home storage segment and is already referenced as a battery supplier in Fenix's own residential pilot installations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCwhU3LWFlNB5z1CkSiYVx9g
• Xx.com/fenixgroupas
• Facebookfacebook.com/fenixgroupas

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries4 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 Fenix Group