OUR MISSION
EnergyMentor is the official supplier in Estonia of district heating components manufactured by SIA Poliurs (Latvia), a trusted company specializing in pipes and fittings since 1995 and certified under Euroheat & Power standards.
Our mission is to empower professionals in the District Heating (DH) and District Cooling (DC) industries through expert training, education, and the supply of high-quality pipelines. We believe that well-trained engineers, system operators, and access to reliable infrastructure are key to building efficient, reliable, and sustainable energy networks.
Our mission is to empower professionals in the District Heating (DH) and District Cooling (DC) industries through expert training, education, and the supply of high-quality pipelines. We believe that well-trained engineers, system operators, and access to reliable infrastructure are key to building efficient, reliable, and sustainable energy networks.
- Training specialists in stress calculations, hydraulic modeling, and network optimization.
- Providing hands-on education with industry-leading software, including sisKMR (Germany) for stress analysis.
- Helping engineers and operators develop accurate hydraulic models, integrate new heat sources, and enhance system performance.
- Supplying high-quality District Heating and Cooling components — pipes and fittings manufactured by SIA Poliurs (Latvia), a trusted producer since 1995, certified under Euroheat & Power standards.
Our Advantages
We work hard every day to make our clients’ lives easier by providing tailored solutions, expert support, and trusted partnerships.
⭐ 20+ years of experience
We bring decades of hands-on experience in designing and implementing complex energy systems, ensuring efficient and future-proof solutions for both urban and industrial areas.
🌍 10+ EU countries
EnergyMentor has successfully completed projects across more than 10 European countries — navigating diverse regulatory environments and adapting to local market specifics with ease.
📦 Reliable logistics
We ensure dependable logistics and timely delivery of high-quality materials, including certified pipes from top manufacturers — minimizing risks and project delays.
Our Preinsulated Bonded Pipe System References
Pre-insulated pipe delivery and support for district heating and cooling networks across Estonia and beyond
- Estonia, Tallinn, Paljassaare 110 MW heat pump pipes: 4km (DN800)Supply of large-diameter DN800 pipes for Tallinn’s largest heat production unit – a 110 MW sewage and seawater heat pump facility in the Paljassaare area.
- Estonia, Tallinn, Sõpruse – Retke – 3.5km (DN400)Pipeline reconstruction through a dense residential district to improve energy efficiency and network reliability in West Tallinn.
- Estonia, Tallinn, Kopli Street – 3.3km (DN400)Replacement of outdated DH infrastructure along Kopli Street, supporting both industrial zones and surrounding residential buildings.
- Estonia, Valga–Valka interconnection – 1.5km (DN250)Cross-border district heating pipeline connecting the Estonian town of Valga with its Latvian twin town Valka, enabling international energy cooperation.
Our Clients
We support utility companies, energy service providers, engineering and construction firms, and municipalities across Estonia and Europe.
Our clients rely on us for pre-insulated pipe supply, technical consultation, and project support in district heating and cooling.
Our clients rely on us for pre-insulated pipe supply, technical consultation, and project support in district heating and cooling.
Core Team
Our team brings together senior engineers and energy professionals with decades of experience in district heating, energy efficiency, and sustainable infrastructure.
- Aleksandr LedvanovMember of the BoardAleksandr is a thermal energy engineer and co-founder of EnergyMentor with deep expertise in the design, planning, and implementation of district heating and cooling systems. He manages project development and technical solutions. His professional background includes over 23 years in engineering and consulting across the Baltics, Scandinavia and Europe.
- Dr. Igor KrupenskiMember of the BoardIgor holds a PhD degree in thermal engineering with over 20 years of experience in district heating, energy systems, and sustainability. He is a senior lecturer at TalTech and actively contributes to European energy innovation through projects and working groups (e.g. Euroheat & Power). At EnergyMentor, he leads international partnerships and technical strategy.
Scientific Research in District Heating and Cooling
EnergyMentor’s core team actively contributes to scientific research in the field of thermal energy, including innovations in district heating, heat pump systems, and network design. Together with leading Estonian universities and international experts, our engineers explore how to make heating and cooling more efficient, flexible, and sustainable.
- Converting Tallinn's historic centre's (Old Town) heating system to a district heating systemCo-authors: Igor Krupenski, Aleksandr Ledvanov
Published in: Energy Reports, 2024
This study analyzes the technical and hydraulic aspects of transitioning Tallinn’s Old Town from individual gas/oil boilers to a centralized district heating system, focusing on supply temperature variation and system optimization for heritage areas.
👉 Read on ScienceDirect - District Cooling Network Planning. A Case Study of Tallinn.Co-authors: Aleksandr Ledvanov, Igor Krupenski
Published in: Proceedings of the 17th International Symposium on District Heating and Cooling, 2022
The paper presents a planning model for Tallinn’s district cooling system and introduces a linear approximation method for estimating the coefficient of performance (COP) of heat pumps to improve simulation efficiency.
👉 Read more - Efficient use of heat from CHP distributed by district heating system in district cooling networksCo-authors: Igor Krupenski, Aleksandr Ledvanov
Published in: Energy Reports, 2022
This article explores how rejected heat from CHP plants can be cascaded through district heating into district cooling networks, maximizing energy reuse and improving overall system efficiency.
👉 Read on ScienceDirect - Energy cascade connection of a low-temperature district heating network to the return line of a high-temperature district heating networkCo-authors: Aleksandr Ledvanov, Igor Krupenski
Published in: Energy Reports, 2021
The study investigates the concept of connecting a low-temperature DH network to the return line of an existing high-temperature DH system. It demonstrates how such configurations can reduce thermal losses and extend the usability of excess heat.
👉 Read on ScienceDirect