Industrial Battery Energy Storage for Izmail, Odesa Oblast

Input Data: What We Actually Work With

We start with your 0.4 kV or 10 kV connection point, the transformer capacity, and the load profile from DTEK Odesa Electric Grids. Izmail's port terminals run 24/7 during navigation season, while grain handling peaks after harvest. Ship repair is more variable. That means your peak demand can double in a month.

We also measure harmonics and voltage dips. At 0.4 kV, a 1 MW battery is not feasible — you'd need a 10/0.4 kV transformer upgrade. So for anything above 300 kW, we work at 10 kV. Without a load profile, any sizing figure is rough.

Power and Capacity Sizing: Not a Guess

Say your max demand is 1.5 MW, occurring for 2 hours in the evening. A 1 MW / 2 MWh battery can shave that peak, saving about 300 UAH/kW/month in capacity charges. Payback is typically 4-6 years, depending on tariff structure.

For backup at a grain terminal, we size for the critical load — conveyors, dryers, control systems — for 4 hours. That might be 500 kW / 2 MWh. We always run a simulation with actual load data, not averages.

Connection Topology: How It Integrates

The battery connects on the customer side of the meter, behind the DTEK Odesa Electric Grids transformer. We install a dedicated feeder from the LV or MV switchboard, with a separate protection relay and metering. For systems above 200 kW, we recommend a 10 kV connection to avoid overloading the LV network.

We handle the technical conditions (TU) application with DTEK Odesa Electric Grids. They require a single-line diagram, protection coordination study, and a grid impact assessment. We have done this for port facilities and agri-logistics sites in the region.

What Goes Wrong If Sized Badly

Undersizing: you don't shave the peak, pay the same demand charge, and the battery cycles daily to its limits — LiFePO4 cells degrade faster. Oversizing: you spend capital that never pays back. At 0.4 kV, a 1 MW system will trip the transformer on charge — that is a hard stop.

Without proper EMS, you get simultaneous charge and discharge, or the battery discharges during low tariff hours for no reason. We also see systems where the grid operator rejects the connection because the protection settings do not match their grid code. That is why we do the engineering first.

EPC by BESS Ukraine Engineering Group

We are a full-cycle EPC contractor: audit, design, supply, installation, commissioning, and service. We build industrial storage from 50 kW to 5 MW using LiFePO4 cells from CATL and other Tier-1 suppliers, with liquid cooling, BMS, EMS/SCADA, and IP55/C4 outdoor cabinets in 20/40 ft containers.

We have worked in the Danube region and understand the logistics of delivering equipment to Izmail. For residential systems, contact SolarProm.com.ua — we do not do residential. Call +380 44 339-50-20 or email engineering@bess.com.ua.