Strrom Gmbh
Strrom GmbH, a 2024 German joint venture between Renergo and ROM Technik (Zech Group), designs, finances, builds, and operates photovoltaic systems and battery storage solutions for commercial and industrial customers nationwide, including a no-capex PV Contracting offering.
- Company typePrivate
- Founded2024
- HeadquartersHeidenheim An Der Brenz, Germany
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Strrom Gmbh does
Strrom GmbH is a privately held German company founded in 2024 as a joint venture between Renergo, a renewable energy project developer established by Markus Arnold and Peter Waldmann in 2021, and ROM Technik (Rud. Otto Meyer Technik GmbH & Co. KG), a building services and electrical engineering subsidiary of the Zech Group with 27 regional branch offices across Germany. The company designs, finances, builds, and operates photovoltaic (PV) systems and battery storage solutions for commercial and industrial customers, with service offerings spanning roof-mounted PV, ground-mounted solar parks, integrated battery storage, optional operations and maintenance, and a "PV Contracting" model under which strrom owns and operates on-site assets while selling electricity to the host customer.
The technical backbone is the STOLAR (STOrage + SoLAR) concept, which combines on-site PV generation with battery storage and intelligent energy management to maximize self-consumption, reduce grid fees, manage peak loads, and provide price stability against volatile wholesale electricity. Differentiated capabilities include economic and technical optimization of complex customer electrical installations, peak-load and grid-fee optimization, and specialized navigation of Germany's fragmented landscape of approximately 950 grid operators. Product packaging includes turnkey EPC contracts (typical 3,000 m² commercial roof installs at EUR 180,000–270,000, 5–10 year payback), subscription-style PV Contracting with no customer capex (minimum 500 m² roof and 100,000 kWh/year consumption, multi-year roof usage and power supply agreements), and asset-level O&M services.
Commercially, strrom runs a direct enterprise sales motion led by Sales Manager Christopher Hartwig, supported by thought-leadership content marketing, social channels (LinkedIn, Instagram, Facebook, Xing), and a newsletter. Execution is delivered through ROM Technik's nationwide branch footprint and Renergo Projekte GmbH's solar park development pipeline. Disclosed customers span logistics, cold storage, manufacturing, sports facilities, municipal buildings, and education, with reference installations ranging from 50 kWp to 1,359 kWp plus co-located storage of up to 1,800 kWh. The company is privately funded with no disclosed outside equity and no public revenue figures, and is currently in early-stage commercial scale-up with active hiring.
Strrom Gmbh firmographics
Firmographics- Name
- Strrom Gmbh
- Legal name
- strrom GmbH
- Website
- https://strrom.de
- Company type
- Private
- Founded year
- 2024
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Strrom GmbH, a 2024 German joint venture between Renergo and ROM Technik (Zech Group), designs, finances, builds, and operates photovoltaic systems and battery storage solutions for commercial and industrial customers nationwide, including a no-capex PV Contracting offering.
- Ownership category
- akta.pro rank
Strrom Gmbh industry classification
Industry- Product category
- Commercial Solar PV and Battery Storage EPC Services
- NAICS
- Solar Electric Power Generation (221114)
- akta.pro primary industry
- Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB)
- akta.pro secondary industries
- Solar PV Power Plant EPC (Utility-Scale) (EUAEAAAG), Solar Balance-of-Plant EPC (Piles/Foundations, Trenching, Combiner Networks) (EUAEADAJ)
Keywords
Where Strrom Gmbh is headquartered
LocationHeadquarters
- HQ city
- Heidenheim An Der Brenz
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
Strrom Gmbh business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Technology or R&D, Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales
Revenue model
- PV System Sales and Installation: Design, installation, and commissioning of turnkey photovoltaic roof systems, ground-mounted solar parks, and battery storage systems for commercial and industrial customers. Revenue is generated through project fees covering full engineering, procurement, and construction (EPC). The company also offers optional operational management and maintenance services post-installation.
- PV Contracting / Power Purchase Agreement: strrom finances, builds, owns, and operates PV installations on customer rooftops. Customers sign a roof usage agreement and a power supply contract to purchase the locally generated solar electricity at a preferential rate. strrom retains ownership of the system and sells surplus electricity back to the grid. This model requires no upfront capital from the customer and generates recurring revenue through electricity sales.
- Operations, Maintenance and Monitoring: Optional post-installation services including plant monitoring, maintenance, and operational management of solar parks and storage systems. Provided both for strrom's own contracted assets and for third-party owned installations.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Multi-year contract | Roof-Mounted Commercial PV Systems (turnkey EPC) |
| Subscription | Annual | PV Contracting (no upfront investment) |
Go-to-market motion4 records
Distribution channels3 records
Marketing channels5 records
Strrom Gmbh product offering
Product offeringCore offering
Strrom GmbH designs, finances, builds, and operates turnkey photovoltaic (PV) roof systems, ground-mounted solar parks, and battery storage solutions for commercial and industrial customers across Germany. The company's flagship STOLAR concept (STOrage + SoLAR) integrates solar generation with intelligent battery storage and energy management to reduce grid dependence, shift loads away from peak hours, and lower energy costs. Offerings are delivered through direct EPC sales, a capital-free PV Contracting / Power Purchase Agreement model, and optional ongoing operations and maintenance services.
Product overview
Strrom GmbH is a joint venture between Renergo (solar and storage solutions) and ROM Technik (smart building technology), offering an integrated portfolio of photovoltaic and energy storage solutions for commercial and industrial customers in Germany. The core product is the STOLAR concept (STOrage + SoLAR), which combines solar generation with intelligent battery storage for optimized energy management. The company delivers PV-Dachanlagen (roof PV systems) and Freiflächen-Solarparks (ground-mounted solar parks), with optional PV-Contracting for customers who prefer not to invest capital. Battery storage systems are offered as integral components across all product lines. Optional Betriebsführung (operations and maintenance) services complete the offering.
Differentiator
Problem solved
Functional benefit
Brands
- STOLAR: Solar + Storage concept combining photovoltaic systems with battery storage for optimized energy management for commercial and industrial customers. STOLAR enables companies to purchase electricity when prices are low or free, store it, and use it as needed.
Products and services
- STOLAR (Solar + Storage) STOLAR is strrom's integrated solar-plus-storage energy management concept for commercial and industrial customers, combining photovoltaic generation with intelligent battery storage to enable self-consumption optimization, peak-load shifting, grid-fee reduction, and cost savings.
- PV-Dachanlagen (Roof PV Systems) Planning, engineering, procurement, and construction (EPC) of large photovoltaic roof systems for commercial and industrial buildings, with optional integration of battery storage and connection to existing electrical infrastructure.
- PV-Contracting Capital-free solar service in which strrom finances, plans, builds, and operates a PV installation on the customer's roof; the customer signs a roof usage agreement and a long-term power supply contract to purchase the on-site generated solar electricity at preferential rates.
- Freiflächen-Solarparks (Ground-Mounted Solar Parks)
- Energiespeicher (Battery Storage Systems) Commercial-scale battery storage systems integrated with PV installations to optimize self-consumption, reduce grid dependency, perform peak-load management, and enable time-shifted energy usage.
- Betriebsführung (Operations & Maintenance) Optional post-installation operational management, plant monitoring, and maintenance services for solar parks and storage systems, available both for strrom's own contracted assets and for third-party owned installations.
Quantifiable outcome
- Battery storage can reduce annual energy costs by EUR 13,000–17,000 for mid-sized commercial customers (e.g., metalworking company with ~500,000 kWh/year consumption), with a typical payback period of 5–6 years for the storage component.
- +4 more outcomes
Companies that use Strrom Gmbh
Customer profileNamed customers9 records
Segments3 records
Ideal customer profiles3 records
Strrom Gmbh technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Strrom Gmbh partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core and supporting.
- RenergocoreRenergo (Renergo Unternehmensgruppe / Renergo Projekte GmbH) is the solar and storage project development arm of the joint venture. Founded in 2021 by Markus Arnold and Peter Waldmann, Renergo is active nationwide as a project developer specializing in solar parks, battery storage, and wind energy. It contributes project development expertise, solar and storage technical know-how, and industry relationships to the strrom joint venture. The founders also serve as managing directors of strrom.
- ROM Technik (Rud. Otto Meyer Technik GmbH & Co. KG)coreROM Technik, part of the Zech Group, is a nationwide leader in planning, building, and maintaining technical building equipment (building services engineering and electrical engineering). With 27 regional branch locations across Germany, it provides the execution capability, workforce, and local market access for strrom's nationwide project delivery. ROM Technik contributes its established relationships with commercial property owners, facilities managers, and industrial customers.
- Renergo Projekte GmbHcoreA specialized project development entity within the Renergo group, serving as the primary project development partner for strrom on solar park projects. It handles the permitting and project development phase (Projektierung) of solar parks, which strrom then takes over for technical planning and construction.
- Zech GroupsupportingROM Technik is a subsidiary of the Zech Group, a diversified building and construction group. The Zech Group connection provides ROM Technik (and by extension strrom) with financial stability, corporate backing, and access to a broader network of building industry relationships and resources.
Scale indicators4 records
Recent moves7 records
Expansion highlights5 records
Strrom Gmbh competitors and assessment
Company assessmentBroad incumbents
- Viessmann: German building technology provider (heating, PV, storage) for commercial and residential customers with integrated energy solutions that include solar. Comparable integrated energy offering for commercial customers.
- Solarwatt: Established German PV manufacturer and installer offering glass-glass modules and integrated PV+storage solutions for residential and commercial customers. Comparable integrated offering but broader product portfolio than strrom.
- EnBW: Major German utility with renewable energy and solar offerings for commercial customers, including PV system solutions and grid services. Comparable end-customer segment but much broader scope and scale.
- E.ON Energie Deutschland: Large German utility with solar solutions for C&I customers, including E.ON Solar and decentralized energy offerings. Competes broadly in the same customer segments but as part of a much larger energy portfolio.
Direct peers
- Memodo: German solar wholesale and project development company active in C&I PV system sales, storage solutions, and energy consulting. Overlaps with strrom's project development and storage integration activities.
- 1Komma5°: Major German solar+storage installer with a growing B2B/C&I arm, energy management, and heat pumps. Competes for similar C&I customers with integrated offerings analogous to strrom's STOLAR concept.
- Enerix: German C&I solar EPC specialist offering turnkey PV systems and battery storage for commercial customers across Germany. Closely comparable to strrom in customer profile, EPC sales motion, and integrated PV+storage offering.
- IBC Solar: Long-established German PV systems provider offering modules, inverters, storage, and project development/EPC services for commercial customers nationwide. Comparable in EPC scope and C&I focus, with a longer track record.
Emerging players
- Enpal: German solar+storage leasing company with a growing B2B arm. Operates a similar financing/ownership and energy-as-a-service model to strrom's PV Contracting, though primarily residential today.
- Sonnen (sonnen GmbH): German battery storage specialist (now part of Shell) offering home and small commercial storage with energy management. Overlaps with strrom's storage integration activities but is more B2C focused.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Strrom Gmbh social profiles
Digital presenceStrrom Gmbh financial estimates
Financial estimateRevenue estimate
Valuation estimate
Strrom Gmbh leadership team
Management profileNumber of profiles
Profiles3 records
Strrom Gmbh funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Strrom Gmbh M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Strrom Gmbh
What does Strrom Gmbh do?
Strrom GmbH designs, finances, builds, and operates turnkey photovoltaic (PV) roof systems, ground-mounted solar parks, and battery storage solutions for commercial and industrial customers across Germany. The company's flagship STOLAR concept (STOrage + SoLAR) integrates solar generation with intelligent battery storage and energy management to reduce grid dependence, shift loads away from peak hours, and lower energy costs. Offerings are delivered through direct EPC sales, a capital-free PV Contracting / Power Purchase Agreement model, and optional ongoing operations and maintenance services.
Is Strrom Gmbh a public or private company?
Strrom Gmbh is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Strrom Gmbh founded?
Strrom Gmbh was founded in 2024. It employs 1 to 10 people.
Where is Strrom Gmbh based?
Strrom Gmbh is headquartered in Heidenheim An Der Brenz, Germany, in the Europe region.
How does Strrom Gmbh make money?
Three revenue lines are on record. PV System Sales and Installation is the primary driver. The others are PV Contracting / Power Purchase Agreement and operations, Maintenance and Monitoring.
Who are Strrom Gmbh's main competitors?
Broad incumbents on record are Viessmann, Solarwatt, EnBW and E.ON Energie Deutschland. Direct peers are Memodo, 1Komma5°, Enerix and IBC Solar. Emerging players are Enpal and Sonnen (sonnen GmbH).
Does Strrom Gmbh have an API?
No public API is recorded for Strrom Gmbh.
What industry is Strrom Gmbh in?
Strrom Gmbh's product category is Commercial Solar PV and Battery Storage EPC Services. Its primary akta.pro industry code is EUAMABAB, Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System), with a secondary code of EUAEAAAG, Solar PV Power Plant EPC (Utility-Scale). Its NAICS code is 221114.