Expert Installation and Maintenance of Industrial Diesel Generators
WE DELIVER RELIABLE SOLUTIONS FOR THE MOST DEMANDING CHALLENGES AND ENSURE UNINTERRUPTED POWER SUPPLY.
We provide end-to-end support, from concept development and engineering to installation and maintenance of generators, power units, and UPS systems.
300+
Satisfied Clients
3.500+
Service Interventions
200+
Control & Transfer Switch Cabinets
500+
Generators Under Maintenance Coverage
SERVICES
Consulting and Engineering of Professional Generator Systems
We provide expert consulting on generator selection and system layout, develop comprehensive project and technical documentation, and deliver full installation of the complete power generation system.
Custom Design of Control and Transfer Switch Cabinets
We custom-design and manufacture control and automatic transfer switch (ATS) cabinets based on defined technical specifications. Our solutions include full integration of electromechanical and control components, ensuring seamless and reliable power switchover.
Diesel Generator Maintenance & Servicing
We provide scheduled maintenance and advanced diagnostics for diesel generators, including functional testing, load testing, and preventive inspections to ensure full system readiness under critical operating conditions.
Advanced Engine and Generator System Repairs
Struggling to find a service provider capable of complex engine and generator repairs? Our specialized technical team delivers solutions for the most demanding repair challenges.
Remote Monitoring and Control of Generator Systems
Integration of Digital Generator Controllers
We retrofit and commission digital generator controllers from leading manufacturers in new and existing generator systems, enhancing automation, control, and monitoring functionality.
Maintenance and Servicing of Auxiliary Equipment
We maintain and service all auxiliary systems and supporting equipment to ensure the dependable performance of complete backup power solutions.
Refurbishment of ATS and Control Cabinets
We repair, upgrade, and replace critical components within ATS and control cabinets. Thermal imaging diagnostics and electrical inspections are included to ensure long-term operational reliability and safety.
Generator Load Testing and Thermographic Diagnostics
We conduct controlled load testing of generator systems using resistive and/or reactive load banks to simulate real-world operating conditions. Testing is monitored using thermal imaging to detect hotspots and performance anomalies.
Electrical System Measurements
We perform detailed measurements of electrical parameters on both utility and generator power systems, analyzing voltage, current, frequency, and harmonics over defined monitoring periods for accurate diagnostics.
Power Quality Analysis
We carry out electrical power quality assessments using advanced network fault and power quality analyzers, in compliance with SIST-EN 50160 requirements.
Emergency Service & Critical Response
In the event of a generator or UPS system failure, our rapid response team is available 24/7 to deliver urgent diagnostics, corrective service, and temporary power solutions.
Secure professional servicing of your diesel generators to ensure reliable operation and uninterrupted power availability during grid outages.
We provide installation, servicing, and maintenance of generators, engines, and control and transfer switch cabinets across multiple OEMs.
Generators: Visa, SDMO-Kohler, Pramac, Atlas Copco, Uljanik, Rade Končar, FG Wilson, Spark, CTM, Green Power, Genmac, Zordan, Caterpillar, Lombardini, Teksan Jenerator, Margen, Genmac, COELMO, and others.
Alternators and Generator Ends: Mecc Alte, Stamford, Leroy Somer, Rade Končar, Sincro, Marelli Motori, EMSA, Linz Electric, and others.
Engines: Perkins, Volvo Penta, Same-Deutz-Fahr, FPT – Iveco, AIFO – Iveco, Cummins, Torpedo Rijeka, Scania, Lombardini, MTU, John Deere, MAN, Mercedes, Caterpillar, Doosan, Kohler, Mitsubishi, Jenbacher, Yanmar, Honda, Lister Petter, Steyr, Bushing, Baudouin, Modag, Kubota, JCB, and others.








ABOUT US
Gensys d.o.o. is built on expertise, quality, and reliability. We deliver comprehensive solutions for backup power systems across a wide range of facilities. Our services encompass the entire project lifecycle, from planning and consulting, through engineering and the development of customized solutions, to the installation of diesel generators, control and automatic transfer switch (ATS) cabinets, and digital control systems, as well as ongoing servicing and maintenance.
We are trusted by large corporations and multinational companies, industrial plants, hospitals, institutes, ministries, and public institutions, as well as small and family-owned businesses. Regardless of size or complexity, we approach each project with the same dedication and professionalism. Years of proven solutions, in-depth technical expertise, and extensive field experience enable us to deliver reliable servicing of your generator systems and to identify the most effective solutions for faults and operational issues.
Our clients recognize us for our ability to find solutions even in the most complex cases—when standard approaches are no longer sufficient. Through direct cooperation with numerous suppliers, including Volvo Penta, Perkins, Deutz, Iveco, and others, we ensure short lead times and efficient project execution. We maintain well-stocked inventory levels, allowing us to carry out repairs and servicing quickly, including in urgent and emergency situations.
Why Choose GENSYS?
Highly skilled and quality-driven technical team.
Extensive field experience and a strong base of satisfied clients.
Individual and client-focused approach: We understand that every organization has unique requirements and challenges.
24/7 availability for emergency interventions.
Over 300 satisfied clients, including Slovenia’s largest companies, public institutions, and security services.
On-site servicing at your location, with remote technical support available for urgent situations.
Our Core Values:
Quality.
Expertise.
Reliability.
Responsiveness.
Personalized approach.
Tailored, optimal solutions.
Contact Information
GENSYS, Engineering, Services and Trading Company, Ltd.
VAT ID: SI 99430339
+386 (0) 41 911 750
info@gensys.si