#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.
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.
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.
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.