Battery Energy Storage System (BESS)

Battery Energy Storage Systems (BESS) allow you to store the electricity you generate and optimize its use during periods of fluctuating consumption or grid load. We offer a complete BESS solution — from technical assessment and precise design to professional installation, integration with existing equipment, and system commissioning. Our solutions are suitable for solar parks, industrial facilities, and businesses.

BESS Engineering & Design

  • Energy consumption analysis and determination of optimal capacity

  • Development of technical schemes and solutions (AC/DC, inverters, safety systems)

  • Integration with solar power plants, solar parks, and grid infrastructure

  • BMS (Battery Management System) and SCADA integration design

  • Preparation of documentation for grid operator approval

BESS Installation & Construction

  • Installation of battery modules, inverters, and control cabinets

  • Laying AC and DC cabling and installing protection systems

  • Installation of BMS, automation, and monitoring systems

  • Testing, commissioning, and full system handover

BESS Advantages

  • Energy storage and cost optimization — Efficiently use generated energy during peak loads and reduce grid connection costs

  • Stable energy flow — Smooths fluctuations from renewable sources (solar, wind, hydro)

  • Safer and more efficient grid operation — Advanced BMS and protection systems ensure safe operation throughout the system lifecycle

  • Avoid costly grid upgrades — Peak load compensation helps businesses save on infrastructure expansion costs

  • Maximize solar plant potential — Generated electricity is stored and used when it’s most needed, minimizing losses

Applications

  • Solar parks and renewable energy power plants

  • Manufacturing and industrial facilities with variable loads

  • Businesses with high self-consumption

  • Voltage stabilization and load-balancing projects

About us

SIA "OMS" was founded in Liepaja, 1991 and is one of the largest electric installation workers on the Kurzeme side. OMS is a licensed company for electrical installations. Company Construction Code Reg. No.: 0365-R. The main activity of OMS is the design, assembly, operation and repair of electrical installations, measurements and adjustments of the inspection.

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SIA "OMS"

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