STORE
Excess energy is stored in the battery during periods of low demand.
Battery energy storage systems.
Full-service solutions for smarter energy management and stable electricity costs.
How does BESS Work?
ZET helps manufacturing and industrial companies unlock new revenue streams through reliable, fully integrated energy storage solutions.
SELL
When demand is high, stored energy can be sold back to the grid.
EARN
Generate additional revenue by participating in grid balancing services.
Services from A to Z
Design & Build services for BESS integration - from the first concept and engineering to full-term operation.
APPROVALS
We manage the full approval process, including securing all required permits, coordinating with authorities, and obtaining grid connection approvals.
DESIGN
Preparation of complete project documentation and technical design, ensuring the solution is efficient, compliant, and tailored to project requirements.
PROCUREMENT
Procurement and delivery of BESS from trusted suppliers, ensuring high quality, system compatibility, and reliable delivery timelines.
CIVIL WORKS
Execution of all required civil and electrical infrastructure works, including site preparation, foundations, cable routes, and supporting structures.
INSTALLATION
Professional installation of equipment and integration of all system components to ensure reliable and seamless operation.
COMMISSIONING
System testing, commissioning, and performance verification, followed by ongoing technical support and after-sales service.
46MW
installed in UPB groups recent BESS project in Saldus, Latvia.
Why ZET?
ZET combines engineering, construction, and project management expertise developed within the UPB Group through decades of experience in complex industrial, energy and infrastructure projects.
This experience enables us to implement energy storage systems with strong technical competence, reliable execution, and full project accountability.
Quality and Security
Our BESS systems comply with EU standards and use management systems developed by trusted European providers, ensuring safe operation, cybersecurity, and secure data handling.
Reliable Team
Our team brings together specialists in engineering, construction, and energy projects, enabling us to advise clients on the most suitable solutions and manage projects efficiently from concept to commissioning.
Experience
As part of the UPB Group, we build on extensive experience delivering complex energy and infrastructure projects.
ZET is part of the UPB Group, the largest industrial holding in the Baltics ensuring deep engineering expertise, execution capacity, and full accountability for delivering complex energy projects.
UPB in Numbers
275m
Consolidated turnover, 2025
1600+
Employees
35
Years in business
Energy storage is playing an increasingly important role in the industrial sector.
It enables companies to manage energy demand more efficiently and reduce exposure to volatile electricity prices. Our goal is to provide reliable, turnkey solutions that help industrial companies take greater control of their energy.
Kaspars Rožkalns
Member of the Board, ZET
Contact us
ZET provides full-service battery energy storage solutions for industrial and manufacturing companies, covering the entire project lifecycle - from engineering and permitting to installation and commissioning. With strong expertise in engineering, construction, and infrastructure projects, our team ensures reliable implementation of energy storage systems tailored to the needs of industrial operations.
We are a proud part of the UPB Group, one of the largest industrial holdings in the Baltics.