Who we are?

We create,
We improve

Experts with broad experience in the field of Industrial Automation, Power generation and Management, crafting innovative solutions for clients worldwide.
Constantly striving to adapt and improve, we keep up with Industry market leading trends.
Using Battery Energy Storage System with its vast range of applications, we maintain focus on process performance optimization, meanwhile complying with latest international standards and high-quality demands.

Why choose us?

Our creativity in engineering leads to optimal customer experience

High Quality
Standards

Industry market leading technologies guarantee sustainable and reliable products

Innovation
and Research

Participation in Research and Development projects supported by EU Structural and Investment Funds

Cooperation with University

Long term cooperation with scientific institutions contributes to common technical and business improvement

Leading
Experts

More than two decades experience in Power Generation Systems, Automation Drives and Industry

Company leaflet

Services

BESS Technical documentation

Battery Energy
Storage Systems

From kWh to MWh
From 0.5C to 5C (cont.) applications
From 3000 to 8000 Cycles

Global market leaders' Battery Cells
Combined with Supercapacitors Rens Battery Energy Storage forms Hybrid Energy Storage system, efficiently covering the most complex Grid objectives

Power Transformers &
HV Switchgears

- Global market leaders' Power Transformers and HV Switchgears delivery
- Energy Metering
- Protection relays - studies and configuration
- Commissioning & Installation

Supervisory BES
Control System

Centralized Unit, based on PLC, supervises operation of BESS components while simultaneously performing Grid management services

Main Features:
- Providing Battery and Power Inverter manufacturer Independency
- CAN/CanOpen and Modbus TCP industrial protocols for system level communication
- International Network System communication protocols for higher level communication such as:
IEC 60870-105-4 / DNP3.0,
OPC UA

High Efficiency
Power Inverters

Battery Inverters (from 30 kVA to 2000 kVA)
DC/DC Inverters (from 30 kVA to 2000 kVA)
Solar Inverters (from 30 kVA to 100 kVA)
Hybrid Inverters (from 10 kVA to 30 kVA)

High Efficiency Power Inverters covering entire range of Battery Energy Storage ON/OFF Grid applications
Supporting different electrochemical battery types regardless of the manufacturer

Industrial
Automation

- Versatile industrial automation solution
- Client oriented and customized
- Implementation of various control functions (BESS, solar power plant, hydro power plant, ...) in only one control unit
- Increasing existing projects’ efficiency
- Maintenance services
- Commissioning & Installation

Technical Consulting &
Project Management

- Energy Storage
- Power Inverters
- Renewable Energy Sources
- Industrial Automation
- Power Trading
- BES Techno-Economic Analysis

Visualization, Remote
Control and Industrial Network Security

Scada and HMI application deployment following latest Industry 4.0 Innovations
Developing 24/7 connected, “Real Time” Cloud based & Network secured applications
Using latest Virtual & Factory reality technology in combination with powerful software and hardware simulators

Renewable Energy
Sources Integration

- Solar and Hybrid Power Inverters
- Solar System Electrical Equipment Delivery
- Feasibility Studies for optimized BESS and Renewable Energy Generation Systems
- Energy Independence using sustainable RE, Biomass and Energy Storage solutions
- Commissioning & Installation

Grid Management
Services

Provided by Control Algorithm for Ancillary Services (FCR, aFRR/Spinning Reserve, mFRR, Island Mode, Voltage and Reactive Power support) inside Rens Supervisory BES Control System.

Products

Control System

Supervisory Control System including ON & OFF Grid stabilization functions, supporting

MODBUS TCP/IP
IEC 60870-105-4/DNP3.0
OPC UA
CanOpen

Specifications

Solar & Hybrid
Inverters

Solar & Hybrid standalone Outdoor Inverters from 10 to 100 kVa.

Specifications

DC-DC Converter

DC-DC Converter up to 1.5MW is a bi-directional converter designed to operate in combination with DC-to-AC solar PV inverters. Thus, it is intended to create DC-coupled solar-plus-storage systems.

Specifications

Battery Inverters

Three Phase bidirectional Battery Inverter up to 1.5 MW with 1000/1500 Vdc Technology that can be used in grid-connected and standalone systems.

Specifications

Battery Inverters

Three Phase bidirectional Battery Inverter up to 1.5 MW with 1000/1500 Vdc Technology that can be used in grid-connected and standalone systems.

Specifications

RENS Battery Energy Storage
for Grid stabilization

Grid management services can be divided into ON grid - grid services that ensure high reliability and improve operational capabilities, while lowering the cost and reducing infrastructure investments and OFF grid - functions that provide solutions for stabilizing island mode operation, including frequency regulation, black start and backup power source functions.