1 GWh of BESS Projects in Ukraine: VOLTAGE Group and Cubenergy Sign Strategic Agreement

For the Ukrainian market, this marks an important milestone: energy storage systems are transitioning from a category of перспективних technologies to practical engineering and investment projects.

The partnership combines Cubenergy’s technological expertise as a Tier 1 BESS manufacturer with VOLTAGE Group’s local EPC expertise — covering development and design through to construction, commissioning, integration, service, and technical support.

“This is a practical step toward a new architecture of Ukraine’s energy system: flexible, resilient, and technologically advanced,” said Vitalii Nykolaienko, CEO of VOLTAGE Group.

One of the key factors in implementing BESS projects is the selection of a technology partner. Such a decision cannot be based solely on the price of equipment.

In projects of this kind, system quality, safety, warranty terms, service support, integration with EMS/SCADA, and the manufacturer’s experience across different scales of solutions are critically important.

For the Ukrainian market, it is essential that the manufacturer has experience in both C&I solutions for businesses and utility-scale systems for large energy infrastructure. This enables work across various scenarios — from ensuring energy security for enterprises to investment projects, energy arbitrage, and grid balancing.

Cubenergy’s declared status as a BloombergNEF Tier 1 Energy Storage Manufacturer serves as an additional marker of trust for the market, investors, and financial partners. For the client, this means that the focus is not only on equipment supply, but also on the system’s predictable performance throughout its entire lifecycle.

The right choice of a technology partner reduces the technical, operational, and financial risks of a BESS project — from grid or generation integration to warranties, service, battery lifespan, and system reliability.

For VOLTAGE Group, this is a technological partnership that strengthens its ability to deliver BESS projects in Ukraine as turnkey energy assets, tailored to specific sites, business models, and operating conditions.

BESS for investors opens up opportunities to work with a new class of energy assets.

The value of these systems lies not only in storing electricity, but also in managing it: charging, discharging at the right moment, operating within energy arbitrage models, participating in balancing markets, and providing additional flexibility to the power system.

The potential ROI of a BESS project depends on the charging and discharging schedule, market volatility, grid connection conditions, CAPEX/OPEX, battery lifecycle, and the chosen monetization strategy.

That is why, at the initial stage of a BESS project, it is important to assess not only the equipment, but the entire implementation model — including technical, financial, operational, and lifecycle aspects.

A BESS project does not start with equipment procurement — it begins with an engineering solution.

It is necessary to assess the site, grid connection conditions, capacity, operating mode, control system, fire safety, integration with generation or the grid, and the future operation of the facility.

The final BESS configuration depends on a specific use case: consumption profile, grid connection conditions, available capacity, existing or planned generation, backup requirements, and the monetization model. That is why, before launching a project, a generic calculation is not enough — a detailed engineering analysis is required.

For both businesses and investors, it is important to work not only with an equipment manufacturer, but with an EPC team that takes responsibility for the full implementation cycle — from concept to commissioning and service.

In recent years, the VOLTAGE Group team has gained hands-on experience in delivering complex energy infrastructure projects. This expertise enables the company to be a reliable partner for both investors and industrial clients.

The client receives not just a set of equipment, but a fully integrated energy asset adapted to real operating conditions.

• For businesses, this means energy security, backup for critical processes, and greater control over consumption.
• For investors, it provides an opportunity to work with a controllable energy asset in a new market segment.
• For the power system, it delivers additional flexibility, balancing capacity, and improved reliability.

Ultimately, the client benefits from a single point of responsibility — from technical concept to commissioning and ongoing service support.

The Ukrainian energy storage market is moving from theory to practice, and VOLTAGE Group is among the companies actively shaping this market today.

There is a significant amount of work ahead. But at VOLTAGE Group, there is a strong belief that the future of Ukraine’s energy sector will be technologically advanced and resilient.