Zenessis Energy Solutions
European Power Generators and UPS Systems
Zenessis is one of Europe’s leading manufacturers of power generators and uninterruptible power supplies (UPS), specialising in diesel and gas generators with capacities from 1 kVA to 5000 kVA. With nearly 25 years of experience and manufacturing facilities in Romania and Germany, Zenessis delivers reliable, high-performance energy solutions for construction, agriculture, data centres, and critical infrastructure across the United Kingdom.
25+
Years Experience
5000
kVA Maximum Power
60%
Production Exported
CE Certified
- AVAILABLE: United Kingdom
- Full Sales, Service & Parts Support
The Zenessis Legacy
Endress Zenessis Group was established in 2002 with the aim of providing comprehensive energy solutions to the European market. With manufacturing facilities in Bocșa, Romania and Grafenberg, Germany, Zenessis has grown to become one of the largest European manufacturers of power generators, specialising in diesel and gas generators with capacities over 20 kVA.
The company operates two fully equipped production facilities in Romania, managing all stages of production from cutting, bending, and painting through to assembly and testing. Additionally, Zenessis has a dedicated unit for manufacturing electrical panels and automation systems for generators, ensuring complete quality control throughout the manufacturing process.
With over 60 per cent of production exported across Europe to countries including Poland, Hungary, Germany, Serbia, Ukraine, Ireland, the United Kingdom, Austria, Czech Republic, and Belgium, Zenessis has established itself as a trusted partner for businesses requiring reliable backup power and energy solutions.
- European Manufacturing -All generators designed and built in Romania and Germany
- Premium Engine Partners - Perkins, Scania, Volvo, Baudouin, Kubota, and MAN engines
- ISO Certified Quality - ISO 9001, ISO 14001, ISO 18001, and ISO 27001 certifications
- Complete Solutions - Generators, UPS systems, and renewable energy integration
Key Features & Benefits
Zenessis power generators are engineered for reliability, efficiency, and durability, delivering exceptional performance for industrial, commercial, and residential applications across the UK.
Smart ATS Panels
Automatic Transfer Switch panels with 35+ alarms and protections for instant power switching, remote monitoring via GSM or IP, and comprehensive system control.
Stage V Compliant
Meeting the latest EU Stage V emissions standards with advanced exhaust after-treatment systems, suitable for urban, commercial, and environmentally sensitive applications.
Premium Engines
Exclusively partnering with world-leading engine manufacturers including Perkins, Scania, Volvo Penta, Baudouin, Kubota, Doosan, and MAN for unmatched reliability.
Soundproofed Enclosures
Galvanised steel soundproofed enclosures with electrostatic paint finish, achieving noise levels under 65 dB at 7 metres for urban and sensitive site installations.
Parallel Operation
Generators can be connected in parallel to function as a single integrated system, with automatic load sharing and synchronisation for scalable power solutions.
Remote Monitoring
Connect generators to the internet for real-time monitoring via phone or laptop. View consumption, check parameters, receive alerts, and schedule operations remotely.
Zenessis in Action
Zenessis Products
Choose from Zenessis’s comprehensive range of diesel generators, gas generators, UPS systems, hybrid solutions, and energy storage systems tailored to your specific power requirements.
Diesel Generators
Dynamic Residential Generators
Reliable backup power for residential and small business applications. Quiet, efficient, and durable with automatic start capability and user-friendly controls.
20-100 kVA
Perkins/Baudouin
Soundproofed
Auto Start
Stationary Industrial Generators
High-power continuous and reliable power for industrial applications. Superior efficiency and durability for complex industrial operations and manufacturing facilities.
100-3000 kVA
Multiple Engines
Heavy Duty
Continuous Use
Stage V Industrial Generators
The most advanced solution for power supply, complying with the strictest European emission standards. Recommended for mobile and rental applications.
EU Stage V
Low Emissions
Urban Suitable
Rental Ready
Data Centre Generators
Built for critical IT applications with fast start-up, instant load acceptance, and seamless integration into redundant Tier II, III, and IV architectures.
500-3000 kVA
Baudouin/MAN
N+1 Ready
24/7 Operation
Containerised Generators
Complete power solutions housed in ISO containers for easy transport and rapid deployment. Ideal for remote sites, events, and temporary installations.
Up to 2000 kVA
ISO Container
Rapid Deploy
All-Weather
Welding Generators
Combined power generation and welding capability for construction sites and mobile fabrication. Available with Honda, Kohler, Perkins, and Yanmar engines.
Dual Purpose
Portable
Heavy Duty
Site Ready
Gas Generators and Alternative Energy
Natural Gas and LPG Generators
Environmentally friendly power solutions running on natural gas or LPG. Lower emissions and reduced operating costs compared to diesel alternatives.
50-1000 kVA
Baudouin/PSI/Scania
Low Emissions
Cost Effective
Hybrid Generators
Combining diesel power with battery storage and optional solar integration. Intelligent controllers manage energy from multiple sources for 30-70 per cent fuel savings.
Diesel-Battery
Solar Ready
Smart Control
Fuel Saving
Energy Storage Systems (ESS)
Advanced energy storage solutions to optimise consumption and ensure operational continuity. Reduce energy costs and integrate renewable sources seamlessly.
30-200 kWh
Grid Integration
Peak Shaving
Renewable Ready
UPS Systems and Support Equipment
Uninterruptible Power Supplies
Ensure operational continuity and safeguard equipment against voltage fluctuations. Instant backup, energy stability, and maximum security for servers and critical applications.
1-1000 kVA
Single/Three Phase
Online/Offline
IT Grade
Lighting Towers
Mobile illumination solutions for construction sites, events, and emergency services. Available in diesel, hybrid, and electric configurations for any application.
LED Technology
Towable
Auto Deploy
Low Noise
Portable Generators
Compact and reliable power for events, outdoor activities, and emergency backup. Available in petrol and diesel variants with easy-start systems.
1-15 kVA
Petrol/Diesel
Compact
Easy Start
Zenessis Energy Solutions Video
Why Choose Zenessis
European Manufacturing
All generators designed and built at facilities in Romania and Germany with rigorous quality control at every production stage.
Stage V Compliance
Meeting the strictest European emission standards for environmentally responsible operation in urban and sensitive areas.
Premium Engine Partners
Exclusively using engines from Perkins, Scania, Volvo Penta, Baudouin, Kubota, Doosan, and MAN for unmatched durability and efficiency.
Comprehensive Support
Extended warranty, preventive maintenance services, and fast technical support through Conagri's UK network.
ISO Certified Quality
ISO 9001, ISO 14001, ISO 18001, and ISO 27001 certifications ensuring quality, environmental, health, and safety standards.
Customised Solutions
Tailored configurations for specific requirements including ultra-silent enclosures, remote monitoring, and parallel operation.
Get in Touch About Zenessis
Whether you are looking for a new Zenessis generator, UPS system, or complete energy solution, need spare parts, or want to discuss financing options, our team is here to help.
Request a Quote
Construction partner
Zenessis Generators for Construction Sites
Construction sites need reliable power from day one. Zenessis Stage V industrial generators meet EU Stage V emissions, are suitable for urban sites and are ready for rental fleets, while stationary industrial models are built for heavy, continuous use.
Zenessis manufactures generators and UPS systems from 1 kVA to 5,000 kVA in Romania and Germany, exporting 60% of production. Conagri supplies Zenessis in the UK with full sales, service and parts support.
All Construction equipment → Zenessis in other categories: Agriculture
FAQs
Frequently Asked Questions
Can Zenessis generators power construction sites?
Yes. Zenessis diesel and gas generators from 1 kVA to 5,000 kVA supply construction sites, as well as agriculture, data centres and critical infrastructure.
Where are Zenessis generators made?
In Bocșa, Romania and Grafenberg, Germany. Zenessis manages every stage from cutting and painting to assembly and testing, and makes its own electrical panels and automation systems.
How long has Zenessis been making generators?
The Endress Zenessis Group was established in 2002.
Are Zenessis generators CE certified?
Yes. Zenessis generators are CE certified.
Does Conagri supply Zenessis generators in the UK?
Yes. Conagri supplies Zenessis across the United Kingdom, for agriculture, construction and critical infrastructure, with full sales, service and parts support.