What Teag Solar Gmbh does

TEAG Solar GmbH is the dedicated solar subsidiary of TEAG Thüringer Energie AG — a regional German energy utility majority-owned by approximately 800 Thuringian municipalities — operating from Erfurt (registered in Jena) and focused on the development, construction, and operation of photovoltaic systems, large-scale battery energy storage (BESS), and AC-system infrastructure. Since 2010 the company has commissioned more than 720 PV installations across a range of sizes and customer types, and now operates a stated strategy to scale its own PV portfolio to at least 125 MWp by 2027. Its core technology stack comprises rooftop and ground-mounted PV systems (Aufdachanlagen, Freiflächenanlagen), solar carports, Agri-PV architectures (elevated, tracking, vertical-fence), Li-NMC-based BESS with 1-hour charge/discharge capability, and AC-system engineering compliant with TAR MS and VDE-AR-N 4110/4105 standards, integrated with grid operator TEN Thüringer Energienetze.

The company's revenue model is project-based across five streams: one-time EPC revenue for PV and BESS project delivery, managed-services revenue from technical operating management and commercial asset management (covering ~60 MW+ of third-party PV), professional-services revenue from AC infrastructure planning and construction, and land-lease / area-utilization payments to landowners hosting solar parks. Customer segments are verticalized into Gewerbe und Industrie (C&I), Kommunen (municipalities), Landwirtschaft (agriculture via Agri-PV), Stadtwerke und Versorger (utilities), and Projektierer und Investoren (developers/investors) — served through direct enterprise field sales, dedicated key account management, and EPC partnerships with municipal utilities such as Leipziger Stadtwerke and Stadtwerke Sondershausen.

Go-to-market is direct and regionally concentrated: dedicated inquiry forms for Gewerbekunden and Kommunen, a sales team of named key account managers, Intersolar Europe presence, and a recent pivot toward energy-market participation (direct marketing, arbitrage trading, balancing power markets) via the BESS pilot at Bad Salzungen. The company is led by Managing Director Stefan Zaubitzer, operates with an 11–50 employee headcount, and derives structural advantage from its parent's municipal ownership, balance sheet, and existing Thuringian customer base — key context for understanding both its competitive position and its growth ceiling.

Name

Teag Solar Gmbh

Legal name

TEAG Solar GmbH

Website

https://teag-solar.de

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

TEAG Solar GmbH is the PV, BESS, and AC-infrastructure subsidiary of TEAG Thüringer Energie AG, developing, building, and operating solar and storage projects for commercial, industrial, municipal, agricultural, and utility customers across Thuringia and central Germany.

Ownership category

akta.pro rank

Product category

Solar Energy EPC Services

NAICS

Solar Electric Power Generation (221114)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

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

Keywords

• Photovoltaic system development
• Battery energy storage
• Solar EPC services
• Agricultural photovoltaics
• AC power infrastructure

Headquarters

HQ city

Erfurt

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. PV Project Development and EPC: Full-cycle photovoltaic project development from site identification through construction and commissioning. EPC (Engineering, Procurement, Construction) contracts for utility-scale solar installations. Revenue generated through project delivery and ownership stakes in self-funded installations.
2. Battery Storage Systems: Development and operation of large battery energy storage systems for industrial customers, utilities, and investors. Revenue from project delivery, operational services, and energy market participation.
3. Technical and Commercial Asset Management: Technical operating management, monitoring, and commercial asset management services for PV installations. Ongoing operational contracts ensuring optimal performance and compliance.
4. AC Infrastructure Services: Planning, construction, modernization, and maintenance of AC power infrastructure for industrial and commercial facilities. Services include grid connections, transformer stations, switchgear installation, and regulatory compliance.
5. Land Lease and Area Utilization: Long-term land lease arrangements with landowners for solar park development. Payments to landowners for utilization of agricultural and non-agricultural land for PV installations.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

TEAG Solar GmbH develops, builds, and operates photovoltaic, battery energy storage (BESS), and AC-system infrastructure projects for commercial, industrial, municipal, agricultural, and utility customers. The company delivers full-lifecycle services including site identification, project development, EPC delivery, and ongoing technical and commercial asset management of PV installations, primarily across Thuringia and central Germany.

Product overview

TEAG Solar offers a comprehensive portfolio of solar energy solutions as a full-service provider and EPC partner for commercial, industrial, and municipal customers. The core offerings include Photovoltaik (rooftop, ground-mounted, carport, and Agri-PV systems), Batteriespeicher (large-scale battery storage systems), and AC-Systemtechnik (grid integration and electrical infrastructure). Supplementary services include biodiversity integration, technical operation management, commercial asset management, and revamping/repowering. The company also provides land lease services for solar park development. As a 100% subsidiary of TEAG Thüringer Energie AG, the company focuses on the Thuringia region while pursuing strategies to expand its PV portfolio to at least 125 MWp by 2027.

Differentiator

Problem solved

Functional benefit

Products and services

• Photovoltaik (PV-Anlagen) Customized solar energy solutions for commercial, industrial, and municipal customers, including rooftop (Aufdachanlagen), ground-mounted (Freiflächenanlagen), carport, and Agri-PV installations. Full-service delivery from consultation and site assessment through construction and commissioning.
• Batteriespeicher (BESS) Large-scale battery energy storage system (BESS) project development for industrial customers, energy utilities, and investors. Services include consulting, planning, installation, operation, and direct marketing in energy markets such as arbitrage trading and balancing power markets.
• AC-Systemtechnik Planning, construction, and maintenance of AC power infrastructure including transformer and transfer stations, low and medium voltage switchgear, grid connections, and electrical integration of generation, storage, charging, and industrial systems. Compliant with TAR MS, VDE-AR-N 4110 and VDE-AR-N 4105 standards.
• Technische Betriebsführung Technical operation management service ensuring maximum operational safety and optimal yields for PV installations through ongoing monitoring, maintenance, and performance optimization.
• Kaufmännisches Asset Management
• Revamping und Repowering Modernization and repowering services to maximize performance of aging PV installations through component replacement and system upgrades.
• Biodiversität und PV Nature-compatible solar park design integrating ecological measures such as nesting boxes, dry biotopes, and wildlife corridors into PV installations.
• Flächenanpachtung Land lease service for landowners interested in hosting solar parks, including site assessment, project development, and long-term rental agreements providing stable, planned income for decades.

Quantifiable outcome

• 720+ solar installations successfully commissioned since 2010
• +3 more outcomes

Named customers13 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core.

• TESVOLT GmbHcoreTechnology or IntegrationStrategic technology partnership with TESVOLT, a leading German manufacturer of industrial and commercial battery storage solutions based in Lutherstadt Wittenberg. TESVOLT provides BESS hardware for TEAG Solar projects including the pilot project in Bad Salzungen (1.49 MW/1.66 MWh). Partnership covers joint project development, system integration, and operational support.
• Leipziger StadtwerkecoreChannel Partner/ Reseller/ DistributorOngoing EPC partnership with Leipziger Stadtwerke for solar park development. TEAG Solar serves as EPC contractor for multiple projects including Tollwitz, Oberschöna, and current 12 MWp project in Rodleben for direct supply to Biopharmapark Dessau-Roßlau.
• Quadoro GmbHcoreStrategic or Co-development PartnerProject partnership with Quadoro GmbH for solar park development in Bodenrode. Joint celebration of topping-out ceremony with project team and municipal representatives.
• TEN Thüringer Energienetze GmbHcoreTechnology or IntegrationGrid operator partnership for network connection and technical coordination. Technical Anschlussbedingungen (connection conditions) coordination for all solar and storage projects in Thuringia.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• RWE AG: Large European utility with aggressive solar and storage expansion strategy in Germany; competing for utility-scale project awards and offering broad incumbent competition.
• EnBW Energie Baden-Württemberg AG: Major German utility with substantial utility-scale solar, wind, and grid infrastructure operations competing for the same municipal and utility-scale solar tenders as TEAG Solar.

Direct peers

• Memodo GmbH: German PV and battery storage distributor/project developer serving commercial customers with solar and BESS solutions; comparable offering overlap especially in the storage segment.
• Juwi AG: German renewable energy project developer active in utility-scale solar, wind, and storage EPC across Central Germany; directly competes for the same municipal-utility and C&I project pipeline.
• Solarwatt GmbH: Established German PV system manufacturer and integrator offering rooftop commercial solar, storage, and energy management; comparable product breadth targeting similar C&I customers.
• IBC Solar AG: Established German solar EPC and PV system integrator with PV project development, large-scale solar park construction, and energy storage offerings directly comparable to TEAG Solar's portfolio.
• Enerix GmbH: German regional solar EPC franchise specializing in rooftop and ground-mounted PV for commercial and residential customers; comparable full-service solar model with similar geographic emphasis in Germany.

Emerging players

• 1Komma5° GmbH: Fast-growing German solar installer and energy-as-a-service provider expanding from residential into commercial and storage; comparable one-stop-shop model targeting German C&I customers.

Regional players

• Beikirch Energie- und Umwelttechnik GmbH & Co. KG: Mid-sized Thuringian-based renewable energy and electrical engineering firm offering solar EPC and AC infrastructure services; closely comparable regional competitor in TEAG Solar's home market.

Others

• TESVOLT GmbH: TEAG Solar's core BESS technology partner; while not a direct competitor, the partnership makes TESVOLT an adjacent peer shaping the storage supply ecosystem TEAG Solar depends on.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/teagsolar

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Teag Solar Gmbh