KOOR Group has been active in the energy services market for 15 years, completing more than 300 reconstruction projects that have delivered measurable energy savings for public, commercial, and residential clients.
KOOR, s.r.o. is the largest Slovak provider of comprehensive energy services across the residential, commercial, industrial, and public sectors.
Founded in 2010, the company focuses on projects that enhance energy efficiency by integrating innovative technologies. These solutions not only reduce operating costs but also significantly lower clients’ carbon footprints.
KOOR’s expertise covers the design and delivery of tailor-made energy solutions, including advanced heating and HVAC systems, as well as renewable energy technologies such as photovoltaics, battery energy storage systems (BESS), and heat pumps.
A key element of KOOR’s business model is generating energy savings that subsequently finance clients’ investment projects.
Mlynské Nivy 56
821 05 Bratislava
Slovakia
Case Studies of Selected Completed Projects
BEKY SNINA
Combination of Photovoltaics and Battery Storage for Support Services
Solution:
2× BESS (564 kW / 950 kWh and 208 kW / 350 kWh)
86 kW photovoltaic power plant
KOOR delivered the entire project, including design, construction, financing and a 10-year operation period.
Result:
The client required no initial investment.
The PV–BESS combination ensures guaranteed returns for 10 years, which KOOR shares with the client.
The customer generates their own green energy and can store any excess in the battery system.
The battery is integrated into the DISPEX balancing group, enabling KOOR to use its capacity for flexibility services and price arbitrage on the OKTE market.
ZOŠ Zvolen
Integrated Photovoltaics and Battery Storage Solution
Solution:
500 kW photovoltaic power plant
1,000 kW / 2,000 kWh battery storage system
KOOR managed the entire process—from project design and construction to financing and 10-year operational support.
Result:
No initial investment required from the client
PV and BESS combination delivers guaranteed returns over 10 years, shared with the client
The client generates their own green energy and can store any surplus in the battery system
The battery participates in the DISPEX balancing group, allowing KOOR to leverage its capacity for flexibility and price optimization on the OKTE market
TRAVAGÓNKA Poprad
Battery Storage Solution with Comprehensive Ancillary Services
Solution:
2,000 kW / 5,000 kWh battery storage system
KOOR managed the full project lifecycle—from planning and construction to financing and 10-year operation.
Result:
No initial investment required from the client
Large-scale BESS generates guaranteed revenues over 10 years, shared with the client, even without PV generation
The battery is integrated into the DISPEX balancing group, enabling KOOR to optimize flexibility and price arbitrage on the OKTE market
MARSEN Distillery – Waste Heat Utilization
Integrated Waste Heat, Photovoltaics, and Battery Storage Solution
Solution:
Recovery of waste heat from the production process
96 kW photovoltaic system
38 kW / 120 kWh battery storage
Result:
Waste heat from cooling is repurposed via a heat pump for preheating the mash before distillation, supporting fruit fermentation, and heating the facility
Electricity from the PV system is directly consumed in the production process, with surplus stored in the battery for morning start-ups of production equipment
Research and Innovation Projects
Digital Energy Service Platform
Objective: Creation and implementation of a platform for digital energy services, enabling the transition from analog heating solutions to energy-efficient cogeneration with digital monitoring and data transmission.
Implementation: 2021 – 2024
Funding: HP/Norwegian Financial Mechanism (BIN 01, project BIN 01_2021_001)
Domain: Intelligent Energy Systems (SK RIS3 2021+)
AOCS – Advanced Digital Services for Building Efficiency
Objective: Expansion of services in building efficiency and renovation, using data for enhanced visualization and stakeholder reporting.
Implementation: 2024 – 2025
Funding: European Union Horizon 2020 (Call H2020-DT-2020-1 AURORAL)
Domain: Intelligent Energy Systems (SK RIS3 2021+)
Pilot Operation of Modernized IT Infrastructure in Boiler Rooms
Objective: Development of a new extended IT infrastructure for boiler rooms, enabling centralized device management and improved heat production and distribution services.
Implementation: 01/2023 – 12/2024
Funding: Company’s own resources
Domain: Intelligent Energy Systems (SK RIS3 2021+)
Digitalization of Guaranteed Energy Savings (GES) Evaluation
Objective: Digitalization of GES evaluation processes for improved accuracy and efficiency.
Implementation: 01/2023 – 12/2024
Funding: Company’s own resources
Domain: Intelligent Energy Systems (SK RIS3 2021+)
Development of a System for Evaluating PV Efficiency
Objective: Development of a module within KOOR’s software platform for monitoring, evaluating, and reporting GES for photovoltaic systems.
Implementation: 01/2023 – 12/2024
Funding: Company’s own resources
Domain: Intelligent Energy Systems (SK RIS3 2021+)
Development of Predictive Algorithms for ESGaaS
Objective: Creation of an information system for environmental sustainability, targeting a 7% annual reduction in avoided CO₂ emissions while increasing energy production and storage by 10%, with alignment to EU Taxonomy and predictive ESG evaluation.
Implementation: 01/2023 – 12/2024
Funding: Company’s own resources
Domain: Intelligent Energy Systems (SK RIS3 2021+)