#ERRAConference2026
Slovenská elektrizačná prenosová sústava, a. s., is the transmission system operator in Slovakia, ensuring the transmission of electricity via extra-high voltage lines. We are the backbone of the national power system, enabling the flow of electricity from producers to consumers via distribution networks. Our mission is to maintain a balance between electricity production and consumption in real time and to develop a modern, resilient infrastructure.
We provide electricity transmission in Slovakia and synchronous interconnection of the Slovak electricity system with the electricity systems of continental Europe. We are a member of the international association European Network of Transmission System Operators for Electricity (ENTSO-E).
Our company's assets include more than 3,100 km of power lines, which is more than seven times the length of Slovakia from east to west. The power lines are installed on more than 7,300 pylons built in rugged terrain at various altitudes. The electricity distribution system includes 22 substations and 40 transformers for voltage regulation
OQ is an energy investment group rooted in Oman and operating across 17 countries. The Group manages a diverse portfolio spanning the entire energy value chain, from oil and gas exploration and production to refining and distribution of end-user products to over 80 countries. Committed to sustainability, OQ leads Oman’s energy transition through investments in renewables and green hydrogen."
SPP is the largest energy supplier in Slovakia, guaranteeing reliable, safe, and competitive energy supplies and related services across all regions of Slovakia. It also operates in the Czech Republic and conducts its trading activities throughout Europe. SPP is further engaged in providing energy services, smart energy solutions, the development of alternative transport, and the development of the production and supply of renewable energy (electricity and biomethane).
Since 2020, SPP has acted as a purchaser of electricity generated from renewable energy sources and from high-efficiency combined heat and power generation. Together with the Czech ČEZ Group, SPP established ESCO Slovensko, a.s., which provides services in the fields of energy services and energy efficiency. Through its subsidiary SPP CNG, s.r.o., SPP supports the development of the use of CNG and LNG in transport as alternatives to traditional fuels.
SPP carries out activities in the area of corporate social responsibility and philanthropy through Ekofond SPP, n.o., the SPP Foundation, the SPP Gallery, and the SPP Museum. Since 2014, the Slovak Republic has been the owner of 100% of the shares in Slovenský plynárenský priemysel, a.s., exercising its shareholder rights through the Ministry of Economy of the Slovak Republic.
Slovenské elektrárne
With more than a 70% share of total electricity production in Slovakia, Slovenské elektrárne, a.s., is the country’s largest electricity producer. After shutting down the last coal‑fired power plant in 2024, the company now generates all its electricity without direct CO₂ emissions. It operates 5 nuclear units, 31 hydropower plants, and 2 photovoltaic power plants.
The company’s commitment to generating electricity from low‑carbon sources makes it a leader in sustainable energy production in Central and Eastern Europe. Slovenské elektrárne has been included four times in the prestigious Europe’s Climate Leaders index, compiled since 2021 by The Financial Times and Statista.
Yiğit Akü A.S., established in Ankara in 1976, is one of the strong investors in Türkiye. Today, the company operates a 78,356 m² production facility with an annual production capacity of 7.000.000 batteries, utilizing the most advanced technologies in its manufacturing processes.
Operating in the global market, Yiğit Akü A.S. serves over 500 active customers in more than 100 countries across five continents. The company markets its products both domestically and internationally under its five registered brands: Yiğit, Platin, Helden, MacPower, and Tunç.
With a strong distribution network of over 65 main dealers and approximately 6,000 sub-dealers across Türkiye, the company supplies batteries to leading automotive manufacturers as well as to many prestigious companies in the industrial and defense sectors both domestically and worldwide.
Continuing its investments in lithium batteries since 2013, Yiğit Akü A.S. continues its investments in lithium batteries as a result of its advanced technology production and R&D studies.
Committed to innovation, entrepreneurship, and sustainability through its R&D, production development, and technological investments, the company holds internationally recognized certifications, including ISO 14001, ISO 16949, ISO 9001, ISO 27001, ISO 50001, OHSAS 18001, and the ISO 10002 Customer Satisfaction Management Certificate.
Having gained a strong reputation in the global battery sector, Yiğit Akü A.S. continues to represent a solution-oriented approach with its qualified human resources, strong infrastructure, forward-looking vision, and significant investments.
As the 2nd largest company in Hungary and the 8th in Central Europe, the dynamic, innovative, state-owned MVM Group is a predominant player of the Hungarian energy system, while continually gains dominance also on regional level, being active in 23 countries.
Its expanding portfolio covers the entire Hungarian energy sector, and through its supplementary services, the Group is prepared to provide full-range services for the increasingly complex consumer demands.
Through innovative solutions and strong sustainability efforts, it actively supports the green transition and the development of the energy system of the future.
FGSZ Földgázszállító Zrt. (FGSZ) is the sole transmission system operator and a 100% subsidiary of MOL. It owns and operates the nearly 6,000 km long high-pressure natural gas transmission pipeline system covering the territory of Hungary, supplying gas distribution companies, power plants and a number of large industrial consumers. FGSZ performs its activities under regulated market conditions and, in compliance with EU rules, has been ITO-certified since 2012.
Following the construction of the first natural gas pipeline in Hungary in 1938, the gas transmission network has developed organically and FGSZ, as a strategically important company in the region, has been transporting gas internationally for some time by now, besides its domestic activities. Since 2021, it has been operating interconnectors with six neighbouring countries: bidirectional points with Slovakia, Ukraine, Romania, Serbia and Croatia, and an entry point from Austria. In international comparison, the Company’s grid is operated according to the highest technological standards.
In line with decarbonisation efforts, FGSZ places a strong emphasis on sustainability and tasks related to the green transition. The Company is exploring the adaptation of the existing transmission system to changing needs and to the transport of renewable gases – it is member of the European Hydrogen Backbone initiative. The Company is also working on a number of other projects to make its current operations more sustainable, carrying out methane leak detection and repair activities to reduce greenhouse gas emissions, and energy efficiency improvements.
Economic Consulting Associates (ECA), headquartered in the United Kingdom, provides advice on economic, policy and regulatory issues, with expertise in the energy and water sectors. We support ministries and governments, regulators, utilities, market participants, and international financial institutions and donors.
Our work spans five core practice areas:
· Regulatory economics: advice on allowed revenue and tariff setting methodologies, cost of capital, network access arrangements, and tariff design and restructuring.
· Market design and operation: support on market frameworks and rules, operational and impact assessments, procurement and valuation, and market price forecasting.
· Investment planning: power development and integrated resource plans, cost of service studies, demand forecasting, and economic appraisal.
· Climate and transition advice: carbon pricing, low carbon pathways, renewable integration, and the design of clean energy expansions and just transitions.
· Decentralised energy: rooftop solar, distributed energy resources, electric mobility integration, and micro-level systems.
ECA works across Africa, Asia, Australia, Europe, Latin America, the Middle East, North Africa and the Pacific. Our objective is to provide enduring, high impact advice and solutions. We future proof our recommendations by applying current economic thinking and quantitative tools, including rigorous modelling, forecasting and scenario analysis, to deliver robust and implementable results.
HUPX operating as Hungary’s power exchange for 15 years, steadily increased its number of members and markets in the last years, thereby enhancing its regional role, market liquidity, and transparency.
In 2024, HUPX reached a significant milestone, strengthening its position in the region like never before. By integrating into ADEX Group and joining forces with the Slovenian BSP South Pool and Serbian SEEPEX power exchanges, the leading power trading hub in the Central Eastern and South Eastern Europe was established.
Headquartered in Budapest, ADEX Group is now the sole shareholder of BSP, HUPX, and SEEPEX. This structure aims to streamline trading and clearing services while improving customer experience as the integration process unfolds.
ADEX is committed to further advancing pan-European market coupling in the region, supporting the energy market transition. Through collaboration with its associated companies – ELES, EPEX SPOT, EMS, and MAVIR – ADEX aims to reduce market fragmentation and strengthen the region’s energy network.
The Alpine-Adriatic Danube Power Exchange (ADEX) is the first regional power exchange for Central and South-Eastern Europe. Established on December 23, 2022, in Ljubljana by ELES, EMS, and EPEX SPOT, the Group was formed following the merger of BSP and SEEPEX, with offices in Ljubljana and Belgrade.
In November 2024, ADEX merged with the Hungarian Power Exchange (HUPX), strengthening its position as the leading trading hub in the region. The merger enhanced market liquidity, efficiency, and price transparency.
Now headquartered in Budapest, ADEX is the sole shareholder of BSP, HUPX, and SEEPEX, with a focus on streamlining trading and clearing services and enhancing customer experience.
Through close collaboration with its shareholders — ELES, EPEX SPOT, EMS, and MAVIR — ADEX is committed to advancing pan-European Market Coupling, supporting the energy transition, and integrating regional markets.
DNV is the independent expert in risk management and assurance, operating in more than 100 countries. Through its broad experience and deep expertise DNV advances safety and sustainable performance, sets industry benchmarks, and inspires and invents solutions.
Driven by its purpose, to safeguard life, property, and the environment, DNV helps tackle the challenges and global transformations facing its customers and the world today and is a trusted voice for many of the world’s most successful and forward-thinking companies.
In the energy industry, DNV provides assurance to the entire energy value chain through its advisory, monitoring, verification, and certification services. As the world's leading resource of independent energy experts and technical advisors, the assurance provider helps industries and governments to navigate the many complex,
interrelated transitions taking place globally and regionally in the energy industry.
DNV is committed to realizing the goals of the Paris Agreement, and supports customers to transition faster to a deeply decarbonized energy system.
The National Association of Regulatory Utility Commissions (NARUC) represents the state public service commissions who regulate the utilities that provide essential services such as energy, telecommunications, power, water, and transportation and who have largely shaped the profile and substance of public utility regulation in the United States of America.
MH Teplárenský holding, a. s. is the leading district heating and energy services provider in Slovakia, focusing on the production and supply of heat and electricity for further distribution. We supply reliable thermal energy to more than 320,000 households, representing approximately 50% of centrally supplied heat in the country.
We are a key pillar of Slovakia’s energy infrastructure, operating centralized heat sources, extensive pipeline networks, and modern control systems that ensure reliable and efficient energy delivery. Our activities include heat production and distribution, electricity generation, and the operation of local distribution systems.
In addition, we provide a broad portfolio of energy services, including HVAC solutions, operation and modernization of energy assets, long-term maintenance, and technical supervision. Through energy performance services and audits, we help our partners optimize consumption, reduce costs, and improve energy efficiency.
Our mission is to ensure a stable, secure, and sustainable energy supply while supporting the transformation of the sector. We are actively phasing out coal, investing in low- and zero-emission technologies, and developing renewable energy projects, including geothermal energy.
Through modernization, digitalization, and strategic partnerships, we are building a resilient energy future and delivering long-term value to cities, industry, and development projects.
Veolia Energia Slovensko, a. s.
Veolia Energia Slovensko - energy division of the global Veolia Group - helps cities and industries to manage, optimize and make the most of their resources. The company deploys specialist solutions related to energy to provide, protect and replenish resources while increasing their efficiency. Veolia Energia Slovensko, is among the largest generators and suppliers of heat and hot water in Slovakia. It has been providing home heating for more than 30 years and in 2024 provided services to more than 85,000 households in 22 cities The company aims to protect the environment and decrease the greenhouse gas emissions by means of energy saving, energy efficiency projects, district heating networks development, ecological production of electricity and use of renewable energy sources.
MH Teplárenský holding, a. s. is the leading district heating and energy services provider in Slovakia, focusing on the production and supply of heat and electricity for further distribution. We supply reliable thermal energy to more than 320,000 households, representing approximately 50% of centrally supplied heat in the country.
We are a key pillar of Slovakia’s energy infrastructure, operating centralized heat sources, extensive pipeline networks, and modern control systems that ensure reliable and efficient energy delivery. Our activities include heat production and distribution, electricity generation, and the operation of local distribution systems.
In addition, we provide a broad portfolio of energy services, including HVAC solutions, operation and modernization of energy assets, long-term maintenance, and technical supervision. Through energy performance services and audits, we help our partners optimize consumption, reduce costs, and improve energy efficiency.
Our mission is to ensure a stable, secure, and sustainable energy supply while supporting the transformation of the sector. We are actively phasing out coal, investing in low- and zero-emission technologies, and developing renewable energy projects, including geothermal energy.
Through modernization, digitalization, and strategic partnerships, we are building a resilient energy future and delivering long-term value to cities, industry, and development projects.
SFÉRA, a.s. is a Slovak technology company with more than 30 years of experience in the development and delivery of specialized IT solutions. It has long been a stable and trusted partner supporting digital transformation in the energy, industrial, and transportation sectors, with a strong focus on efficiency, security, and sustainability.
Its portfolio is built on proprietary software products XMtrade® and XMatik®, which are continuously developed and enhanced with specialized functionalities tailored precisely to customer needs.
In the energy sector, SFÉRA provides modern solutions for data collection and management from smart metering systems, as well as systems supporting energy trading, supply, and distribution. The company delivers comprehensive IT platforms for market participants, along with analytical and consulting services.
For industrial enterprises, SFÉRA offers advanced tools for asset management and maintenance, including EAM systems, predictive maintenance, and solutions leveraging augmented and virtual reality to support maintenance activities, training, and process visualization.
In the transportation sector, the company focuses on the development of dispatching systems, monitoring solutions, fleet management and maintenance, and comprehensive systems for railway companies.
The quality of the company’s processes is confirmed by certified management systems in accordance with international standards ISO 9001, ISO 14001, ISO/IEC 27001, and ISO/IEC 20000-1.
For more than 30 years IPESOFT company has been developing innovative software technologies that are an important part of the management of Slovakia´s energy system. All products and services that the IPESOFT company supplies to customers are original, developed by its own engineering capacities.
In software development, it deals with two areas. The first area is basic real-time software technologies, intended for business-critical applications and the second area is software applications for energy and industry.
We deliver solutions that are oriented to the optimization of electricity production processes, trading processes and risk management in the energy market and for new business models that create space for example entites that provide flexibility with the use of battery storage.
Asociácia vodárenských spoločností/Association of Water Companies, Slovakia
The Association of Water Companies, Slovakia, (AVS) was established in 2004 as a professional organisation bringing together business entities engaged in water management activities, particularly in the operation of public water supply and public sewerage systems.
Currently, the association comprises of 15 members, including 14 regular members and 1 extraordinary member, which contribute to the development and efficient functioning of water infrastructure services in Slovakia.
The member companies ensure the supply of drinking water to approximately 95% of the population connected to public water supply networks. They are also a significant employer, with around 8000 people working across various technical, operational, and administrative positions. Together, these companies operate an extensive and complex infrastructure network, including 31 007 km of water supply pipelines and 13 330 km of sewer networks. This infrastructure enables the reliable distribution of drinking water and the effective collection of wastewater across the Slovak region, including 345 wastewater treatment plants.
The main objectives of the Association of Water Companies (AVS) are to ensure a stable legislative environment, promote the long-term sustainability of water infrastructure, strengthen the position of regulated entities, support the development of a qualified workforce and improve the working environment in the water sector.
Východoslovenská distribučná, a.s. (VSD) is an energy company focusing on electricity distribution to the end customers through its own distribution system. It owns its distribution system of almost 23,000 kilometre in Eastern Slovakia and in a part of the Banská Bystrica region. It distributes electricity to over 600,000 supply points. It belongs to the ZSE Group, which makes it a part of the German energy E.ON Group.
As part of its portfolio of distribution services, it also manages grid development planning, as well as its operational, strategic, and dispatch management. It connects new consumers and electricity producers from all segments. As part of its customer-focused approach, it also provides other highly specialized services, for which it has set up the website www.vsdeshop.sk.
The company is one of the national leaders in the implementation of modern technologies in the energy sector, such as the multifunctional use of drones in operations or the application of artificial intelligence in customer service. It has been a long-standing supporter of the protection of flora and fauna, particularly birds.
Západoslovenská distribučná, a. s. (ZSD) is the biggest distributor of electricity in Slovakia. It manages the operation of a 40,000-kilometre distribution network covering the Bratislava, Trnava and Nitra regions, as well as part of the Trenčín region, to which more than 1.2 million supply points are connected. It belongs to the ZSE Group, which makes it a part of the German energy E.ON Group.
ZSD’s mission is to ensure safe and reliable distribution of electricity, improving quality of life of citizens of Western Slovakia. That is why the company makes significant investments in the upgrade and development of its distribution infrastructure and in the development of electronic services for its customers. Also, the company participates in several EU Projects of Common Interests.
Through environmental projects focusing on the protection of birds and habitats, ZSD strives to help nature and compensate the environmental impact of its operations.
Energetika Slovensko, a.s. (E.SK) belongs to the ZSE Group, which makes it a part of the German energy E.ON Group. It is the largest electricity supplier and a major natural gas supplier in Slovakia, as well as a leader in LNG transit. It provides services to approximately 1.3 million customers across Slovakia – households, businesses and organizations, as well as large and key customers.
The company's mission is to trade in electricity and gas and to provide related services on a long-term basis, reliably, at affordable prices, in an environmentally friendly manner and in accordance with the rules applicable in the European Union. The company operates in the market under the VSE and ZSE brands, which have a century-long tradition and are symbols of reliability, stability and security of supply.
E.SK is also an innovative and customer-oriented business. It offers its customers non-commodity products and solutions that help them save money, increase security of their property and health, and improve their personal comfort. These primarily include various types of insurance, air conditioning installation and maintenance, and comprehensive solutions focused on the use of renewable energy sources. In the field of new energy, it focuses on surplus energy from photovoltaic systems, energy sharing, and the provision of flexibility services. It devotes significant attention to digitisation and artificial intelligence in customer services.
BEZ TRANSFORMÁTORY, a.s. is a leading Central European transformer manufacturer with over 120 years of heritage in the energy sector.
We deliver reliable oil-filled and dry-type transformers designed to meet the highest European standards, combining advanced engineering, Slovak precision, and continuous innovation.
BEZ TRANSFORMÁTORY – European tradition. Slovak precision. Energy for the future.