About us

Tesla Energy Group

A European supplier specializing in the development, engineering, manufacturing, delivery, and integration of scalable battery energy storage systems (BESS) for industry, power utilities, renewable energy, and other commercial applications. Our solutions enable efficient management of electricity production and consumption, reduction of energy costs, better utilization of renewable sources, and the integration of energy storage into modern power management.

TESLA Energy Group logo
3,500 m²
Assembly and production facility in Žilina
250 MWh
Annual production capacity
6+
International certifications
24/7
Dispatch and monitoring
Technology

Custom-designed battery storage

We design every BESS (Battery Energy Storage System) individually for each specific customer. Our goal is maximum performance, efficiency, and operational safety throughout the entire service life. The group's portfolio includes scalable battery solutions for energy projects of all sizes, from compact cabinet systems and containerized solutions to custom-designed indoor installations.

Detail bateriových modulů s oranžovými konektory
Thermal management

Liquid cooling

Liquid cooling ensures efficient and stable thermal management, even under high loads. The cells operate at an optimal temperature, which extends their service life.

Řady bateriových racků s kapalinovým chlazením uvnitř bateriového úložiště
Asset protection

Certified European fire protection systems

Fire protection systems are designed with maximum safety and asset protection in mind. They meet all European certifications and standards.

Bateriové racky a červené lahve hasicího systému uvnitř úložiště
Lower operating costs

European insulated technology containers

Insulated, European-made containers reduce the storage system's own power consumption, thereby lowering operating costs year-round.

Zateplený technologický kontejner bateriového úložiště s otevřenými dveřmi v terénu
Flexible placement

Outdoor and indoor implementation

We can implement BESS solutions both outdoors and indoors. We always tailor the installation to the client's needs and spatial constraints.

Letecký pohled na oplocený areál bateriového úložiště
Continuous monitoring

24/7 remote monitoring

Every device is continuously monitored by our operators. We address any deviations immediately, before they can affect operations.

Operátor u monitorů dispečinku sleduje provoz bateriového úložiště
In-house development

Proprietary PLC control software

The storage system is controlled by our own PLC software. We have full control over the operational logic and can customize it precisely to meet customer requirements.

Software EMAN24 na monitoru a obrazovky s grafy energetických toků

We build on partnerships with leading global component suppliers

Comprehensive EPC implementation

TESLA Energy Group provides services under the EPC (Engineering, Procurement, Construction) model, acting as a partner responsible for the comprehensive implementation of energy projects. The group offers customers end-to-end solutions, from initial analysis and design through to implementation, commissioning, energy management, and long-term service.

Analýza potřebNávrh připraven krok 1hotovo
Analysis and design
Initial analysis of customer needs and design of an optimal solution.
Realizace na klíčKontejner usazen EPCna místě
Implementation
Engineering, procurement, and construction under a single point of responsibility.
Uvedení do provozuSystém spuštěn OFFON
Commissioning
Complete commissioning and handover of a functional system.
servisrevize
Dlouhodobý servisServis naplánován SLAaktivní
Energy management and service
Long-term service and energy management throughout the entire operational period.

BESS from design to performance. Comprehensive, smart, reliable.

Jeřáb osazuje kontejnerové bateriové úložiště na základovou desku
FAQ

Frequently Asked Questions

Answers to the most frequently asked questions about TESLA Energy Group and battery storage systems.

A BESS (Battery Energy Storage System) is a technology for storing electrical energy in batteries, allowing for flexible and efficient energy use based on current needs. Such systems help stabilize the power grid, reduce dependence on fluctuating electricity prices, and increase energy independence through the efficient use of energy from renewable sources, such as solar or wind power.

Cost optimization – stored energy is used during peak hours when electricity prices are high. Backup power source – a reliable backup during grid outages ensures operational continuity. Grid load balancing – the system balances the discrepancy between production and consumption, preventing overloads. Support for renewable sources – stores excess energy and allows it to be used when sources are unavailable.

Lifespan depends on battery quality, intensity of use, and maintenance. Standard lithium-ion batteries typically have a lifespan of 10 to 15 years when operated correctly. Thanks to advanced energy management, the lifespan can be even longer without significant capacity loss.

Modern BESS units are equipped with advanced safety mechanisms: thermal management keeps batteries within an optimal temperature range, overload and short-circuit protection prevents system damage and reduces fire risk, and an early warning system monitors cell status and alerts to any irregularities.

A BESS can be connected to the grid as part of a facility's energy management system or as a standalone system with off-grid capabilities. Installation requires space for battery modules, suitable climate conditions, and professional assembly. Proper sizing of the system according to the facility's needs is also essential.

Yes. Most modern systems are modular and scalable—additional battery modules can be added as needed to increase both capacity and performance. Expansion requires professional consultation and adjustment of the system to new conditions.

Your partner for energy independence

Schedule a meeting with the management of the holding company or any of our subsidiaries.
European company
Tailored solutions
ISO certified
In-house development