Domy sobě

What Domy sobě does

Domy sobě is a Czech solar energy company founded in 2020 that designs, sells, and installs photovoltaic systems and battery storage exclusively for residential apartment buildings managed by housing associations (SVJ) and housing cooperatives (bytová družstva). Its offering is structured as three turnkey tiers — Basic (shared-space PV only), Smart (PV plus battery for community energy sharing), and Max (PV plus battery plus a merged metering point eliminating per-apartment fixed fees) — supplemented by the Dominiq smart building platform, remote meter reading, and a long-term Energetický management service. Documented technical stack consists of Solax Triple Power LiFePO4 batteries, AIKO solar panels, optimizers, inverters, and smart electricity meters, sized for projects typically valued at CZK 1M+ (e.g., a 25-apartment, 28 kWp / 34.6 kWh system at ~CZK 1.72M). The business model combines one-time installation revenue with recurring revenue from Energetický management and Dominiq subscriptions, running on a 6–9 month enterprise sales cycle that runs from a non-binding inquiry through site visit, SVJ education, and apartment-owner voting. The company was created as a joint venture between Veolia (parent, via PT Koncept) and venture builder Creative Dock, and operates as a private entity under the Pražská teplárenská a.s. legal umbrella with a 14-person team headquartered in Prague 7, claiming 1,000+ apartments installed in 2024 with portfolio output of 353.55 MWh. Customers are exclusively mid-market housing associations; case studies include SVJ Děčín (CZK 600K annual savings, 52% savings), SVJ Olomouc–Dělnická (CZK 299K annual savings, 68% savings), and SVJ Plzeň (CZK 124K annual savings, 49% savings), with average payback of 5–7 years and a record of 3.3 years.

Name

Domy sobě

Legal name

Pražská teplárenská a.s.

Website

https://domysobe.cz

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

11–50 employees

Short description

Domy sobě is a Czech solar installer founded in 2020 and backed by Veolia that designs, finances, and operates turnkey photovoltaic, battery storage, and smart-metering systems exclusively for residential apartment buildings (SVJ and housing cooperatives), with recurring energy management services.

Ownership category

akta.pro rank

Product category

Residential Solar Installation Services

NAICS

Solar Electric Power Generation (221114), Roofing Contractors (23816)

akta.pro primary industry

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

akta.pro secondary industries

Solar Roofing & Roof-Mounted PV Systems (IMADAFAO), Solar Inverters, Power Electronics & MLPE (String/Central Inverters, Optimizers, Microinverters) (EUAMABAE), PV Balance of System (BOS) & Electrical Infrastructure (Inverters, Transformers, Cabling, Substations) (EUACAGAC)

Keywords

• Solar photovoltaic systems
• Apartment building energy
• Energy management services
• Smart metering solutions
• Residential solar installation

Headquarters

HQ city

Prague

HQ country

Czechia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Photovoltaic system installation sales: One-time revenue from the sale and installation of photovoltaic systems (panels, inverters, batteries, optimizers, smart meters) for apartment buildings. Includes comprehensive turnkey delivery covering design, permitting, installation, and commissioning. Revenue per project typically exceeds CZK 1 million given the scale of apartment building installations (5x–10x larger than single-family home systems).
2. Sloučené odběrné místo (SOM) — merged metering point service: One-time and/or recurring revenue from consolidating individual apartment electricity meters into a shared metering point, eliminating fixed fees per apartment and generating immediate annual savings (thousands of CZK per household). Often bundled with photovoltaic installations.
3. Energetický management — ongoing monitoring and maintenance: Long-term service contracts for remote monitoring, preventive maintenance, and performance optimization of installed systems. Ensures optimal energy output and early detection of issues over the 25–40 year lifespan of photovoltaic installations.
4. Dominiq smart building platform: Integrated online platform and app providing building-wide energy monitoring, automatic billing, and safety sensor management. May generate recurring subscription revenue for data management and platform access services.
5. Smart metering and remote reading services: Wireless remote reading of electricity, water, and heat consumption with automatic data processing for annual billing. Offered as part of comprehensive building management services.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Domy sobě designs, sells, installs, and services turnkey photovoltaic solar systems for residential apartment buildings (housing associations and cooperatives) across the Czech Republic. The company bundles hardware (panels, inverters, LiFePO4 batteries, optimizers, smart meters) with installation, permitting, NZÚ subsidy handling, merged metering point consolidation, and ongoing energy management. Three modular product tiers (Basic, Smart, Max) are tailored to each building's consumption profile and budget.

Product overview

Domy sobě offers a portfolio of three main photovoltaic (FVE) products—Basic/START for common areas only, Smart/OPTIMAL with battery storage for community energy sharing, and Max/PREMIUM combining FVE with merged metering points for maximum savings. These core products are complemented by add-on services including the Dominiq application for automated billing and remote monitoring, remote meter reading (dálkové odečty), merged metering point management (SOM), and energy management services. The company specializes exclusively in residential apartment buildings (SVJ and housing cooperatives), providing complete turnkey solutions.

Differentiator

Problem solved

Functional benefit

Brands

• Dominiq: Smart home/energy management application for monitoring and controlling solar installations and energy consumption in apartment buildings.

Products and services

• Basic (formerly START) photovoltaic system

Quantifiable outcome

• Average 65% of annual electricity consumption covered by self-generated solar energy
• +6 more outcomes

Named customers3 records

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered flagship, core and minor.

• VeoliaflagshipStrategic or Co-development Partner · 1 January 2020Veolia is the parent company and primary strategic partner of Domy sobě. Domy sobě was founded as an innovative startup in partnership with Veolia and venture builder Creative Dock. Veolia provides financial backing, energy sector expertise, and operational know-how. Domy sobě operates within the Veolia portfolio and is managed through PT Koncept, the Veolia subsidiary focused on energy-efficient management and sustainability solutions. This partnership provides Domy sobě with unique stability in the Czech market and access to decades of sustainable energy expertise.
• Creative DockcoreStrategic or Co-development Partner · 1 January 2020Creative Dock is the venture builder that co-founded Domy sobě alongside Veolia. Creative Dock has a track record of building successful consumer finance companies such as Zonky. They provide startup methodology, product development, and operational infrastructure for Domy sobě's business model.
• Unie komunitní energetiky (UKEN)coreStrategic or Co-development PartnerUKEN is the Czech Union of Community Energy, an industry association. Domy sobě is a principal partner and collaborates with UKEN on educational materials for prospective solar customers and on drafting commentary for developing communal energy legislation (including Lex OZE II). UKEN membership represents a commitment to reliability standards.
• Solární asociace (Czech Solar Association)coreStrategic or Co-development PartnerDomy sobě is a member of the Czech Solar Association and supports its Quality Standard (Etalon kvality / Kodex kvality Solární asociace), which establishes installation and service quality standards for photovoltaic companies. Domy sobě advocates for mandatory adoption of quality standards across the industry to protect consumers from unreliable installers.
• eVlastníciminorGTM or Marketing PartnereVlastníci provides a mobile app for digital voting and collective decision-making for housing associations. Domy sobě partnered with eVlastníci to enable apartment building residents to vote on solar investments digitally, eliminating the need for physical meetings and facilitating faster decision-making on photovoltaic installation approvals.
• Solax Triple PowercoreTechnology or IntegrationSolax Triple Power is the battery storage technology used exclusively in Domy sobě photovoltaic installations. LiFePO4 chemistry with 10-year warranty and guaranteed minimum 90% capacity for 6,000 charge cycles. Used globally in hundreds of thousands of installations, ensuring proven reliability and spare parts availability.
• TZB-infominorGTM or Marketing PartnerListed as a partner logo on the Domy sobě website. TZB-info is a leading Czech technical portal for building equipment and energy efficiency (building services engineering). Partnership likely involves content marketing, technical information sharing, and industry audience reach.
• DS AdvokátiminorImplementation/ SI/ Consulting PartnerListed as a partner logo on the Domy sobě website. DS Advokáti is a Czech law firm that likely provides legal advisory services related to photovoltaic installation contracts, housing association agreements, and regulatory compliance.

Scale indicators7 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• ČEZ: ČEZ is the largest Czech utility and a major investor in Czech renewable energy, including solar generation assets. While ČEZ operates at a much larger scale and across multiple energy sources, its Czech solar offerings to residential and commercial customers overlap with Domy sobě's addressable market, making it a broad incumbent competitor.
• Tesla Energy: Tesla Energy offers integrated residential solar roof, Powerwall battery storage, and energy management solutions globally. Its combined solar + battery + software stack mirrors Domy sobě's PV + Solax + Dominiq offering, though Tesla Energy operates at massive scale and primarily in single-family home markets rather than European apartment buildings.
• E.ON Czech Republic: E.ON is a major European utility with significant Czech operations spanning electricity distribution, gas, and renewable energy solutions for households. Its broad residential energy services portfolio overlaps with Domy sobě's apartment building customer base, although E.ON operates across many customer segments beyond solar EPC.

Direct peers

• Enpal: Enpal is a leading German residential solar leasing company offering solar systems, batteries, heat pumps, and EV chargers on a subscription basis. Its direct-to-customer sales motion and integrated hardware-plus-service model closely parallel Domy sobě's turnkey PV + energy management approach, although Enpal targets single-family homes rather than apartment buildings.
• 1Komma5°: 1Komma5° is a German residential climate-tech provider offering solar, heat pumps, EV charging, and electricity contracts as a bundled subscription — a direct analogue to Domy sobě's photovoltaic + energy management + smart metering bundle. Both companies target residential customers with turnkey, multi-product offerings.
• Solarwatt: Solarwatt is a German solar PV and battery storage manufacturer and installer for residential and commercial buildings, with leadership from BMW alumnus. Its integration of glass-glass PV modules, battery storage, and energy management is comparable to Domy sobě's PV + battery + Dominiq platform stack, though Solarwatt focuses primarily on single-family homes.
• Photon Energy: Photon Energy is a publicly listed (Warsaw/Frankfurt) solar EPC company headquartered in Amsterdam with significant operations in the Czech Republic and across CEE. It builds and operates utility-scale, commercial, and residential solar PV projects, making it the most direct comparable peer to Domy sobě's solar EPC business in the same Czech geography.

Emerging players

• Sonnen: Sonnen (owned by Shell) is a German residential battery storage and virtual power plant operator offering smart energy management systems for households. Its combination of LiFePO4 batteries, energy management software, and community energy sharing model is highly comparable to Domy sobě's Solax + Dominiq stack, though Sonnen focuses on single-family homes rather than apartment buildings.
• Zolar: Zolar is a German online platform connecting homeowners with vetted solar installers and offering integrated financing options. While Zolar's marketplace model differs from Domy sobě's direct field sales approach, both companies target digitization of residential solar adoption and serve similar end customers in the DACH region.

Others

• Solax Power: Solax Power is a Chinese battery storage and inverter manufacturer whose Triple Power LiFePO4 batteries are used in Domy sobě installations. As a key technology supplier rather than a competitor, Solax is positioned as an ecosystem participant whose strategic direction impacts Domy sobě's hardware costs and product roadmap.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@domysobe
• LinkedInlinkedin.com/company/domysobe

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 Domy sobě