BESS
BESS.COM.UA Energy Systems
UA
Utility Scale Grade

SCALABLE.
PROFITABLE.

Megawatt Container (1-5 MW) is a turnkey infrastructure solution. Integration of renewable energy sources (RES/WES), participation in the market of auxiliary services (RDP) and industrial arbitration.

Plug & Play ISO Container. Direct connection 6/10/35 kV. Payback Period 2-3 years.

1500V DC System
98% Efficiency
Liquid Cooling
Container BESS system 1-5 MW Utility Scale
Grid Service
FCR Ready Frequency regulation
Standard 20ft / 40ft High Cube ISO
/// Energy_Market_Challenges

The energy system needs balance

The rapid growth of "green" generation creates imbalances in the network. Operators (TSOs) are willing to pay a premium price for fast shunting capacity. At the same time, the industry suffers from the volatility of the prices of RDN.

RES imbalances

SPPs and wind turbines generate energy unevenly. Penalties for "under-release" or limiting generation during peak hours reduce the profitability of stations.

Loss of profit

Selling electricity during surplus hours (lunch) for pennies and not being able to sell it in the evening, when the price is maximum.

Network stability

Frequency deviation from 50 Hz is a critical problem. Factories are forced to shut down lines due to unstable current quality.

/// BESS_Solution

Monetize the Grid

Megawatt Container turns volatility into revenue. This is an asset that earns on several markets at the same time: RDP, Balancing market, Arbitrage.

FCR / aFRR (RDP)

Provision of primary and secondary frequency regulation services. Fastest payback (2-3 years). BESS responds in milliseconds.

Energy Arbitrage

Automatic charging at night (or from the sun) and discharge during peak hours (evening). Margin maximization for traders and SES.

Black Start Capability

The ability to "raise" the network of an enterprise or district from zero after a complete blackout. Critical for infrastructure.

1 MW+ configuration

Battery Racks

1500V DC Architecture

  • • Cells: 314Ah+ LFP (CATL)
  • • Density: >3.7 MWh in 20ft
  • • Rack protection: IP67

PCS Skid

Centralized / String

  • • Power: 630kW - 3.4MW
  • • Voltage: 0.4 / 0.69 / 0.8 kV
  • • efficiency > 99%

Thermal Management

Smart Liquid Cooling

  • • The difference T < 2°C
  • • Antifreeze / Glycol
  • • Operation at -30°C...+50°C

Safety & Fire

NFPA 855 / UL 9540A

  • • Gas: Novec 1230 / FM-200
  • • Water Sprinkler (Backup)
  • • Explosion-proof panels

Complex engineering

  • Development of feasibility study and financial model in PVSyst/HOMER
  • Obtaining technical specifications and connection design
  • Delivery and customs clearance
  • Construction of foundations and KTP 10/35kV
  • Configuring SCADA and exchange protocols
  • Certification for the ancillary services market
/// Energy_Market_Ukraine_2026

Why Ukraine is an ideal market for BESS

The market of auxiliary services is growing, the price spread for RDN is maximum, and the regulator is opening the door

0
thousand EUR/year
income 1 MW FCR
0
hryvnias/MWh
RDP rate (aFRR)
0
% growth
of the BESS market/year
0
years
min. LFP resource
Income #1

Market of auxiliary services

Ukrenergo is actively increasing the procurement of FCR/aFRR. Rates increase by 30% every year due to the shortage of maneuvering capacity after the destruction. BESS is the fastest market participant (< 1 sec).

Income #2

Arbitration on RDN/VDR

The spread of night (1.2 UAH) and peak (4.2 UAH) tariffs is a record for Europe. Margin ~ UAH 3/kWh at 2 cycles/day. Automated trading through EMS.

Income #3

Integration of RES

BESS + SES/HPP: storage of excess generation and sale at peak. Increase in SES revenue by 40-60%. Avoiding fines for "green" generator imbalances.

IRR of BESS projects in Ukraine 2026: 25-40% — one of the highest indicators in Europe
/// Investment_Models

Investment models of container BESS

Choose a monetization model and learn specific numbers

Ancillary Services Market (FCR/aFRR)

Model: BESS reacts to network frequency deviations from 50 Hz in milliseconds. Ukrenergo pays for power reserve, even when the battery is not discharged.

Advantages: The highest income per MW. Guaranteed rate for 1-3 years. Minimal battery wear (200-500 microcycles/day). Staking of arbitrage.

Annual income of 1 MW: ~EUR 180,000 Payback Period: 2.5-3.5 years
CAPEX: $350/kWh
C-rate: 0.5C - 1C
IRR: 25-35%
NPV (10 years): $800K - $1.2M
Min. power: 1 MW / 4 MWh

Investment presentation of BESS in Ukraine 2026

Ready presentation for investors: market indicators, financial model, ROI scenarios, regulatory changes. Ideal for Board Meetings.

/// Revenue_Breakdown

Megawatt Container revenue structure

Distribution of annual income for a 1 MW / 4 MWh system on the Ukrainian market

FCR/aFRR (RDP) Market of auxiliary services
~€180,000/year
45%
Energy arbitration Purchase/sale on RDN
~€100,000/year
25%
Peak Shaving Reduction of peak load
~€80,000/year
20%
Balancing market Compensation of imbalances
~€40,000/year
10%
Total annual income ~€400,000 / year for 1 MW / 4 MWh
/// ROI_Estimator

BESS container payback calculator

Estimate the potential profitability of your project in real time

System parameters

1.0 MW
1 MW5 MW
4.0 hours
2 hours4 hours

Yes - participation in the market of auxiliary services

UAH 4.0/kWh
2 hryvniasUAH 8

Verified Financial & Technical Results

Estimated cost (CAPEX) $1,400,000
Annual income $400,000
Payback period 3.5 years
NPV (10 years, rate 12%) $860,000
/// FAQ

Frequently asked questions about containerized BESS

On the condition of participation in the market of auxiliary services (FCR/aFRR), the payback of a 1 MW containerized BESS in Ukraine is 2.5-4 years. The key factor is the capacity rate for the RDP, which in 2025-2026 is 1,800-2,500 UAH/MWh. Additional arbitrage revenue (difference between night and peak rates) adds 20-30% to total revenue. When combining an existing SES or WPP, the ROI indicators improve by 15-20% due to the optimization of own consumption.
To install a container BESS, the following are required: technical conditions (TU) from the distribution system operator (DSO), a power supply project with the agreement of connection to the 6/10/35 kV network, as well as a declaration of readiness for operation. In order to participate in the RDP market, certification from NEC "Ukrenergo" for compliance with the requirements for providers of auxiliary services is additionally required. Our team supports the entire process from submitting an application for TU to obtaining a license — it takes 3-6 months.
Thus, the market of auxiliary services in Ukraine is actively developing and is the most profitable direction for BESS. Battery systems are ideal for FCR (frequency control) due to their response times of less than 200ms. Payment is made for the available capacity (capacity payment) regardless of the actual amount of energy provided. The average FCR revenue for a 1 MW system is €150,000-€200,000 per year, making it a major source of return on investment.
Containerized BESSs require minimal maintenance. Quarterly inspection includes: inspection of the cooling system (filter replacement, coolant level check), BMS diagnostics and contactor inspection. The SCADA system provides remote monitoring 24/7 with automatic alerts in case of deviations. O&M costs are 1-2% of CAPEX per year. LFP CATL cells have a guaranteed resource >6000 cycles at 90% DoD, which provides 15+ years of operation.
Thus, the integration of BESS with existing solar or wind power plants is one of the most effective scenarios. BESS allows you to store excess generation during peak production hours and sell it during evening peak demand at a higher price. For SES, this increases revenue by 30-50% due to arbitrage. Connection is possible both on the AC side (through a separate PCS) and on the DC side (DC-coupling), which reduces conversion losses by 2-3%.
/// EPC_Process

From TK to commissioning

Complete EPC cycle of container BESS — design, production, delivery and turnkey commissioning

1

TK and modeling

Load analysis, PCS/BMS configuration selection, ROI and LCOE financial model

3–5 days
2

Design and licensing

Working project, coordination of OSR/NKREKP, permit documentation, connection scheme

2–4 weeks
3

Production and delivery

Factory container assembly, BMS/PCS/HVAC integration, FAT testing, site logistics

6–10 weeks
4

Installation, PNR and start-up

Foundation, network connection, commissioning, SAT tests, staff training

1–2 weeks
100+ MWh
installed capacity
FCR/aFRR
certification for the SE market
Liquid Cool
liquid cooling IP55
CATL Tier-1
LFP Grade A 6000+ cycles