GRUPELquality, reliability and efficiency



    The single-phase generators range consists of several very reliable machines that work in a system powered by single-phase voltage. Their power ranges the usual single-phase installations commonly known to be 5 to 20 kilowatts .



    This is the most popular and versatile range of generators. They are designed for a three-phase electrical network, but in some cases, when there is a three-phase mains and single-phase consumers, their use is extremely appropriate.



    The range of industrial generators covers capacities in range 500 to 2500 kilowatts. Industrial diesel generators are specially developed for industrial needs with high energy requirements. 

Heavy Industries Engineering

We, Heavy Industries Engineering, are an engineering company operating in the field of electrical solutions. Our main activity is concentrated in the design and supply of equipment for the reserved power supply.

We build, implement & execute projects for delivery and installation of equipment throughout Bulgaria and abroad since Y 2007. We have completed some of the toughest projects in the field of reserved power in the country and in the region, and we are proud to have our iconic project completed in almost every city in country.

Our head office, warehouse and engineering department are in Sofia. We have regional centers in Plovdiv and Varna.

We believe that what we deliver to our customers is more than a product, equipment or a specific project – we deliver responsibly built, working solutions that you will use hassle free for years.


Ейч Ай Инженеринг

We achieve this because we stay strictly stick to the list of rules below:

  • Precise design with a focus on solution integration
  • Successful implementation of the project with attention to quality and deadlines
  •  High-quality electrical equipment and materials from proven manufacturers from Italy, Portugal, Great Britain and Spain
  • Expert approach: our projects are carried out only by highly qualified specialists with the necessary experience and knowledge
  • Long-term commitment to the project with warranty and out-of-warranty support


                                                                                          PROJECTS AND PLANNING

The HI Engineering team coordinates and manages the entire process required for the timely delivery and installation of UPS units, busbars and generators. We strive to fully execute each project, starting with project preparation, technical drawings, organization of all logistics and installation process. You can rely on us for complete on-site services, from downloading and positioning of equipment to electrical and mechanical engineering, commissioning and handing over the site to you. We manufacture, deliver and install quickly and efficiently – nationwide or worldwide.

Keeping our promise to deliver reliability to our customers, our team thoroughly inspects all products before final delivery and installation. We ensure that all equipment supplied is properly and thoroughly inspected. Our highly trained technicians perform any necessary repairs or upgrades prior to final shipment to our customers. In order to comply with the assigned deadline and successful integration, we check whether the work on the site is carried out correctly, efficiently and with all mandatory permits.

We strictly fulfill our obligations under the warranty terms of the equipment and offer a minimum of 10 years of parts support and repair services for the equipment supplied.


We keep stock ready for fast delivery – diesel generators, UPS units and any additional electrical components. Fast production & delivery of large machines and busbars systems based on specific customer needs option is in place.



We offer and perform subscription-based technical maintenance & support of generators and UPS devices. We take care of your devices even when they are out of warranty. We offer a variety of flexible service packages, including preventative maintenance, device performance monitoring, and 24/7 emergency service.

                                                                                                   EQUIPMENT RENTAL

Renting or operational lease option is preferable when you want to produce electricity for your site for a certain period, add power or reserve in case of planned preventive maintenance. There is an option for both short-term and long term service – both UPS and generators.

We can offer stable manual and automatic gasoline or diesel generators – from 3 to 500 kW and UPS units at competitive prices depending on the rental period. We can also offer you accompanying equipment, such as AVR panels and others. We provide delivery, installation and other related activities.