Design Services for Power Engineering

Hardware and software development for power electronics and power systems engineering

We have extensive experience in hardware and software development for power engineering. We design electronics using the latest microprocessors, microcontrollers, and FPGAs that meet global standards and future load patterns. 

With our engineering support, our clients create mass-produced devices and programs for a variety of applications: substation automation, energy storage solutions, smart city infrastructure, and digital twins of physical systems or processes.

From startups to mature companies from all around the world, organizations of all types have commissioned us to design advanced solutions for electricity meters, protection relays, grid communications, and power conversion systems.

Also, we develop distribution management systems with visualization, reporting, and archiving tools. One of our focuses is green energy power solutions and eco-friendly technologies. As a result, our power engineering solutions cover all market segments.

Solutions We Offer

Engineering services for green technology systems & digital transformation

Electricity meters

We design for our clients single-phase or polyphase meters with accurate energy measurement and efficient wireless and wired communications. With advanced integrated circuits and reference platforms, our engineers can significantly reduce the time and costs of your project while adding extra safety features.

Also, we work with measurement equipment to ensure power quality: design technical and commercial energy accounting systems (EAS).

Protection relays

We design compact and multifunction relays and various modules for relay protection systems. Protective relays work as sensors and monitor the current and/or voltage of the power system to detect the location of a fault and activate the circuit breaker. 

Here is a list of modules that we can design and manufacture for our customers:

  • Digital protection relays and controllers

  • Electronic monitoring relays

  • AC analog input modules

  • DC analog input/output modules

  • Processor modules

  • Communication modules

  • Power supply modules

  • Binary input modules

  • Expansion modules

Data concentrators and communications for smart grids  

We design wireless and wired communication systems for smart power grids and create hardware and software solutions for data concentrators.

Power conversion system (PCS)

We create efficient power conversion systems (PCS) for various applications: power grids, PV panels, and batteries for e-vehicles and industrial automation.

Here are just a few examples of our designs and implemented features:

Power quality

  • Power quality analyzers

  • Power quality meters with improved characteristics: real-time analysis, reliable connectivity in challenging factory environments, accurate energy measurement, and compliance with the IEC standards

Grid automation

  • Fault indicators (FI)

  • High-voltage direct current power transmission systems

  • Grid asset monitoring

  • Remote power distribution automation and substation automation

Power systems markets we serve


Solar energy solutions Promwad
  • Buck-boost controllers
  • Central & micro inverters
  • Variable frequency drives (VFD) with EMI filters and power factor correction (PFC)
  • IoT for solar energy
  • MPPT plus VFD systems
  • PWM / MPPT solar charge controllers
  • Rapid shutdowns
  • Smart combiner boxes
  • Solar arc protections
  • Solar battery chargers and charge controllers
  • Solar irrigation pump controllers
  • Solar power optimizers
  • Solar pump & string inverters
  • Solar-powered air conditioner systems


Nuclear energy solutions Promwad
  • Data loggers/recorders
  • Digital protection relays and controllers
  • Excitation and synchronization systems
  • Power quality and measurement systems
  • Flame scanners
  • Grid security systems
  • Liquid analyzers
  • Safe computing and motion systems
  • Safe series connections
  • Safety DAQ
  • Safety camera sensors
  • Safety controllers, PLCs, and relays
  • Safety multibeam scanners and radar sensors
  • Safety systems for nuclear power plants
  • Single loop controllers
  • Teleprotection systems for high-voltage lines


Wind energy solutions Promwad
  • Buck-boost controllers
  • Variable frequency drives (VFD) with EMI filters and power factor correction (PFC)
  • MPPT wind charge controller
  • MPPT plus VFD
  • Central, micro and string inverters
  • PWM wind charge controllers
  • Rapid shutdowns
  • Smart combiner boxes
  • Wind arc protection systems and power optimizers
  • Wind battery chargers and charge controllers
  • Wind irrigation pump controllers and inverters

ТPP/Geothermal Power

  • Automatic transfer switches (ATS)
  • Back-up power controllers
  • Battery chargers (wired and wireless)
  • Bay controllers substation (PLCs)
  • Commutated switchgears
  • Custom HMI and SCADA
  • Data acquisition systems (DAQ)
  • Emergency automatics and oscilloscopes
  • Fault locators, recorders and software systems for the faults recording and analysis based on fault waveforms from multiple sources
  • IoT for energy systems
  • PLC systems and quality meters
  • Protective shutdown devices
  • Smart power management systems
  • Substation gateways
  • Teleprotection systems for high-voltage lines
  • Time servers and time synchronization systems
  • Uninterruptible power supplies (UPS), boost / buck
  • PFC + boost, AC/DC – rectifiers (single / multi-phase interleaved)
  • DC/DC (isolated and non-isolated)
  • DPA-Enterprise (single phase buck / multi-phase interleaved)
  • DC-DC converters (boost / buck)
  • Auxiliary switched-mode power supply systems (SMPS)


Oil & Gas

  • AI-enabled enterprise intelligent search platform and predicting systems
  • AR/VR visualization apps
  • Automated UAV inspections
  • Automated alarm apps
  • Automatic Voltage Regulator
  • Bay Control Unit
  • Collaboration platform
  • Central Control Unit
  • Combined Protection & Control Systems
  • Compact Remote Terminal Units
  • Data collection, visualization and storage systems
  • Directional Earth Fault Relay
  • Distance Protection
  • Earth Fault & Short Circuit Indicator
  • Geofencing and GPS positioning systems
  • Grid Calculation
  • Hazard reporting apps
  • Hazardous substance management simulation
  • Line Differential Protection
  • Machine Learning driven analysis
  • OBS with Combined Protection & Control
  • Overcurrent Protection
  • Process Bus
  • Remote assistance and monitoring solutions for wearables devices
  • Sensors, connected devices, and IIoT for environmental protection
  • Systems for monitoring equipment in real time
  • Synchro-check
  • Transformer Differential Protection
  • VR equipment operation training
  • VR simulation of remote locations and emergency situations


Do you need a cutting-edge engineering solution for your power system? Write to us!

Our Tech Stack

Communications interfaces

IEC 60870-5-101, IEC 60870-5-102, IEC 60870-5-103, IEC 60870-5-104, IEC 61850, IEC 61850-8-1 (MMS, GOOSE), HSR, PRP, IEEE, C37.94, G.703.1, X.21, E1/T1, ISDN PRI/BRI, HDLC, RS232, RS485, Ethernet, IEC 62056 (DLMS/COSEM), DLMS/COSEM over LoRaWAN, MBUS, ANSI C12.18, ANSI С12.19, ANSI C12.21, GSM/GPRS/LTE/5G, LoRaWAN, Power Line Communication: PLC/PLC G3/G3-PLC Hybrid, IEC 62061, PowerLink, Modbus RTU, Modbus ASCII, Modbus TCP, IEC 60870-6 TASE.2, SNMP


Baremetal, Linux (+RT), ROS, RTOS: FreeRTOS, Azure RTOS, ChibiOS/RT, eCos, CMSIS-RTX, RTEMS, Segger embOS, Mbed OS, TI-RTOS

HMI/SCADA/Web SCADA/Dashboard Dev

Microcontrollers: TouchGFX, EmWin, uGFX, lvgl, Azure RTOS GUIX | Linux: Qt (QML, Widgets), JavaScript, C++, Rust, WebAssembly

Asymmetric Multiprocessing

Linux + RTOS: OpenAMP, OpenMCAPI, Jailhouse Hypervisor, Xenomai, Rpmsg file


STMicroelectronics, Microchip, NXP, Intel, Xilinx, others

Tools & Languages

С, C++, Python, Qt, JavaScript, Rust, Verilog, VHDL, HLS, LLVM

Build Systems

Buildroot, Isar, OpenEmbedded Project, Yocto Project



Customized power systems engineering solutions

Control Panel
Industrial Control Panel Development
We designed an industrial control panel based on FPGA, CPU Sitara by IT, Linux, and RTOS (AMP). Our team was responsible for industrial, mechanical, and hardware design, software development, and functional testing on our test bench.As part of this system, our team developed our own IP C37.94.
IP C37.94
C37.94 Transceiver IP Core for Teleprotection Equipment
We designed the C37.94 transceiver IP core for teleprotection equipment with full test coverage. It is available for sale to companies that want to reduce the time and costs of their FPGA projects significantly.C37.94 are optical interfaces that transfer relay protection information between teleprotection devices and digital multiplexers over optical fibre channels.
Automatic Transfer Switch
We designed a hardware and software complex to monitor the phase, voltage, and current of power supply channels and switch to the backup channel in case of emergencies.The software of the STM32MP1 MCU communication module was based on Embedded Linux and assembled via Yocto. C++ was used for a set of applications running in user space and interacting via D-Bus. The basic control module was designed on STM32F429.

Why Promwad

In-depth expertise

In-depth expertise

Our experience in designing power electronics for industrial automation increases our efficiency and speed of working on your projects

Business approach

Business approach

We can choose the best technical solution tailored to your business needs.Therefore, we carefully study the specifics of your industry

All-in-one solution

All-in-one solution

Our multifunctional engineering team will take care of all your tasks: from hardware and software development to production launch

Our Cooperation Models

Flexible approach to suit your current needs

Dedicated Team

We will form a team to fit your specific engineering task. You are free to manage it and provide additional resources.


We can join you at any stage or take on the entire project, including our management and risk control.

Fixed Price Model

This contract fixes the price so that it does not depend on resources used or time expended by our engineering team.

Time and Material

A T&M contract is the best option for your flexible set of tasks that are difficult or impossible to fix and assess in advance.

Do you need a quote for design services for power engineering?

Drop us a line about your project! We will contact you today or the next business day. All submitted information will be kept confidential.


What is digital transformation in oil and gas?


Environmental and geopolitical developments are forcing oil and gas corporations to restructure their businesses and make new plans for the future of their enterprises. The most promising trend is a digital transformation or the process of implementing digital technologies to optimise the main technological processes for oil and gas production, storage, and transportation.


What is solar energy systems engineering?


The fundamental idea behind solar energy systems is that solar panels use the photovoltaic effect to convert solar energy, or sunshine, into DC. The DC energy can subsequently be transformed into AC energy or stored in the battery.

In countries with hot climates, this approach makes it possible to create solar water pumps or solar air conditioners. Utilizing them lessens the expense of energy use and its negative effects on the environment.


What are some examples of green technology?


There are several types of green technology:

  • solar power (solar air conditioning, solar charger, solar inverter);
  • wind power (windmill, wind-powered wheels);
  • bioenergy (system for biomass production);
  • geothermal energy (geothermal turbine, geothermal generator).