About
STS Group is a renewable energy company headquartered in Budapest, Hungary specializing in Solar, Wind, Biogas.
STS Group is a Hungarian EPC company specialising in the design, development, commissioning and operation of renewable energy power plants, including solar, wind and biogas, as well as hybrid plants, substations, switching stations and transmission lines. The group operates through subsidiaries: STS ECO handles design, permitting and high-voltage grid and electrical plant construction; STS Service handles solar plant construction and medium-voltage grid connections. The company also works on energy storage, including vanadium redox flow battery systems, and develops its AI Box monitoring and energy management platform. It reports participation in more than 1 GW of renewable projects and approximately 50 MW of built solar capacity, and is active in the Hungarian Renewable Energy Association.
Headquarters
Focus areas
Products & services
Business models
Value chain
Service areas (1)
Renewable power plant EPC
Design, permitting, construction, commissioning and operation of solar, wind and biogas power plants, substations and grid connections.
Locations
Headquarters
Csörsz utca 49-51, 1124, Budapest, Hungary
Operating locations (1)
- Koroknay Gyula utca 4-8, Győr, Hungary
Service regions
Projects
5Ács substation and 132 kV connection
Design, permitting and construction of a 132 kV switching station, a high-voltage transmission line and a 132/11 kV transformer station for a cathode materials plant grid connection.
Kaposfüred substation expansion
Expansion of an existing 132/25 kV MÁV substation into a new 132/22 kV E.ON substation with a new control building and two new transformer bays.
Balatonberény vanadium redox flow battery storage
Grid-scale vanadium redox flow battery energy storage with 3 MW rated power and 12 MWh capacity, supported by RRF funding.
Tereske lithium iron phosphate battery storage
Grid-scale lithium iron phosphate battery energy storage co-located with an existing solar plant, with 18 MW rated power and about 72-73 MWh capacity.
Gyöngyöshalász 15 MW AC solar plant
15 MW AC solar power plant with solar tracking structures and battery energy storage.
Credentials & affiliations
Industry memberships
Partnerships
E.ON, BAMO Technology Hungary Kft., Grid&Connect Hungary Kft., SolServices Kft., NextGenLearn
People
Management & team (3)
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