RE-Source Southeast 2026 - Registration is open

27-28.05.2026
Sofia, Bulgaria
450+
attendees
20+
COUNTRIES
1:1
NETWORKING

RE-Source Southeast Conference 2026

RE-Source Southeast is back for its 6th edition, bringing together the region’s leading actors in corporate renewable energy sourcing. The event convenes industrial and corporate energy consumers, project developers, electricity traders, and renewable power producers to examine how the market is evolving and where new opportunities are emerging.

Southeast Europe is entering a decisive new phase. A rapidly expanding pipeline of renewable generation, alongside more than 12 GWh of new battery energy storage (BESS) capacity expected by 2026, is reshaping how power is produced, traded, and consumed. In this changing landscape, hybrid PPAs are opening new pathways for developers, traders, and offtakers—transforming risk management, flexibility and value creation across the market.

On 27-28 May 2026, 450+ participants from over 20 countries will gather in Sofia to share practical insights and real-world experience in corporate renewable sourcing, with a strong focus on Romania, Greece, and Bulgaria.

Networking remains at the core of the RE-Source Southeast experience. The event is designed to foster meaningful conversations—connecting senior decision-makers, industry leaders, and future partners, while creating space to exchange ideas and learn from those shaping the region’s energy transition.

RE-Source SEE will be accompanied by a RES plus BESS exhibition, dedicated to renewable energy generation and battery storage solutions. The exhibition and conference will bring together leading technology providers, industry experts, and energy stakeholders to showcase cutting-edge solutions shaping the future of sustainable power.

RE-Source Southeast Conference and Exhibition is where the region’s renewable energy community meets to connect, learn, and move the market forward.

Testimonials

2026 Key Topics:

Event Agenda

RE-Source Southeast 2026

6th Annual Forum for Renewable Energy Corporate Sourcing & Investment in Southeast Europe

27–28 May 2026 · Sofia Tech Park, Sofia, Bulgaria

DAY 1

Wednesday, 27 May 2026

10:00 – 11:00

Registration & Welcome Coffee

Opening of the RES + BESS Technology Exhibition

Delegates are invited to register, collect conference materials, and explore the Technology Showcase Area featuring the latest solutions in solar, wind, and battery storage.

11:00 – 12:30

Workshop | Electricity System Flexibility in Bulgaria: Unlocking the Digital Opportunity

The session will centre on the presentation of the report Scaling Up Electricity System Flexibility in Bulgaria Through Digital Solutions, which examines the current state and potential of digital technologies to enhance system flexibility, and identifies the regulatory, technological, and market conditions needed to accelerate the transition. The report serves as the structured basis for practitioner dialogue.

Session Powered by
14:00 – 16:00

Buyers’ Bootcamp

Workshop for Corporate Energy Buyers

Working session for corporate energy buyers and offtakers. Participants will gain a structured overview of the SEE renewable energy procurement landscape, PPA mechanics, and BESS-augmented offtake options. Facilitated by leading legal, financial, and advisory experts.

16:00 – 17:00

Spotlight Session | Sector Coupling & Energy Startups

This session brings together innovative startups and scale-ups alongside corporates and investors exploring sector coupling opportunities.

Speakers
  • Apostol Radev · Founder & CEO, Solarsteam
  • Ivo Tsachev · VoltKeepers
  • Daniel Tomov · Eleven Venture
  • SCION Accelerator bresented by Rezolv Energy
DAY 2

Thursday, 28 May 2026

08:30 – 09:00

Registration & Welcome Coffee

Powered by
09:00 – 09:20

Opening

Welcome Address

  • Miglena Stoilova · Chairperson, Bulgarian Wind Energy Association (BGWEA)
  • Nikola Gazdov · Chairman, Association for Production, Storage and Trading of Electricity (APSTE)
09:20 – 10:00

Session 1 | Quo Vadis Corporate Sourcing?

Get up to date on the evolving Power Purchase Agreement landscape in Europe. Leading PPA experts will present the latest market data, discuss key regulatory shifts, and unpack the changing dynamics between buyers and sellers. Which regulatory and market factors will shape PPAs in the coming years — and how is battery storage beginning to redefine what a PPA can look like?

Moderator
  • Daniel Dang · Director Business Development, SolarPower Europe & RE-Source Platform
Panellists
  • Andrej Stancik · Senior Policy Advisor, Energy Traders Europe
  • Viktoriya Kerelska · Director Advocacy & Messaging, WindEurope
  • Severin Vartigov · Chief Commercial Officer, Enery
  • Dr. Christian Maly · Team Lead PPA Origination Asia, SEE, Poland, wpd onshore
Session Powered by
10:00 – 10:40

Session 2 | Southeast Europe Market Updates

What’s next for utility-scale wind, solar and storage in Southeast Europe? This panel presents the latest market developments across Bulgaria, Greece, Romania, and the wider SEE region. Speakers will address the hard realities — zero prices, grid saturation, curtailment risk — while addressing the transformative role of large-scale battery storage for unlocking the next phase of RES growth.

Moderator
  • Nikola Gazdov · Chairman, APSTE
Panellists
  • Stella Zacharia · CEO, Optimus Energy
  • Miglena Stoilova · Chairperson, BGWEA
  • Mihaela Nyerges · Managing Partner, Nyerges & Partners & Board Member of RPIA
  • Valery Drenikov · Chairman, ATEB
10:40 – 11:10

Networking & Coffee Break

Powered by
11:10 – 12:00

Session 3 | The Dawn of the Storage Era

Battery storage is reshaping how renewable energy is developed, traded, and consumed. This panel goes beyond the hype to examine real-world corporate strategies — business models, commercial strategies, technical and regulatory challenges on the road to a more flexible regional power system.

Moderator
  • Kostantsa Rangelova · Global Electricity Analyst, EMBER
Panellists
  • An Yang · Director, HUAWEI Digital Power Southeast Europe
  • Malina Stroumina · Manager, BARINGA
  • James Ling · Vice President of European Region, CRRC
  • Krasimir Zhivachki · BESS Product Manager, ENERY
  • Alexander Zahariev · Head of Strategy, SUNOTEC
Session Powered by
12:00 – 12:50

Session 4 | Managing Market Volatility

As low and negative prices proliferate and tighten merchant margins, the market is innovating rapidly. This session examines offtake strategies and structures aimed at hedging against capture price erosion — as well as other risk-optimisation strategies available to developers, traders and corporate buyers navigating a volatile electricity market.

Moderator
  • Filippos Falieros · Research Advisory Lead, AURORA Energy Research
Panellists
  • Dimitar Bartov · Managing Director, SYNERGON Energy
  • Milan Kamaryt · PPA Origination, REZOLV Energy
  • Dimitar Kirchev · Bulgaria's Country Manager, SUNGROW
  • Velizar Cholakov · Head of Business Development, HEC Solar
  • Andrej Dernikovič · Advanced Energy Services Origination Department Manager, GEN-I
Session Powered by
14:00 – 14:45

Session 5 | Financing the Energy Transition in Southeast Europe

Access to capital remains the critical enabler — and constraint — for scaling renewable energy and storage in the region. Panellists from development finance, commercial banking, and the legal and advisory sectors will examine current deal structures, risk appetite, and the evolving role of blended finance, green bonds, and DFI instruments in the SEE market.

Moderator
  • Konstantin Altandzhiyski · Senior Associate, CMS
Panellists
  • Julian Gikov · Managing Director, RBI, Vienna & CEO of Raiffeisen Advisory, Sofia
  • Nikola Mihajlovic · Senior Investment Officer Infrastructure and Energy, IFC
  • Dimitar Dimitrov · Business Development Manager, REIB
Session Powered by
14:45 – 15:30

Session 6 | Rewiring the Grid: Batteries, Powerlines & the Flexibility

Southeast Europe is at a crossroads. Unprecedented renewable capacity additions have collided head-on with grid infrastructure bottlenecks, slow interconnection processes, and limited flexibility resources. This panel separates reality from rhetoric: how can the region overcome its infrastructure constraints — through flexibility markets, demand response, and smart grid investment — to remain a credible destination for green capital?

Moderator
  • Mariyana Yaneva · Vice-Chair, APSTE
Panellists
  • Dimitar Zarchev · Director of the National Dispatch Center, Electricity System Operator, Bulgaria
  • Gerhard Schubert · Technical Sales Consultant, SIEMENS
  • Johanna Bonilla · Business Development Manager Europe, JINKO ESS
  • Tamás Szentirmai · Regional Sales director, PHOTOMATE
  • Krum Krassin · Business development & Financial Planning, PROMENERGOMONTAZH
Session Powered by
15:30 – 16:00

Wind Case Study Bulgaria – “Navigating the New Frontier: Overcoming Barriers to Deliver Bulgaria’s First Modern Wind Farm

Moderator
  • ·
Panellists
  • Rositsa Chopeva · Partner, xFigureFinance
  • Rossitsa Voutcheva · Managing Partner, Ilieva, Voutcheva & Co Law Firm
  • Representative of Vestas
Session Powered by
16:00 – 16:30

Afternoon Coffee & Refreshments

16:30 – 17:10

Session 7 | Moving the Market Forward

The competitive frontier in SEE is shifting from megawatts built to megawatts optimised. This forward-looking panel explores how digital platforms, algorithmic trading, and AI-driven energy management are redefining value creation for generators, aggregators, and consumers — and what this means for the market architecture of tomorrow.

Moderator
  • Radoslav Mikov · Partner, Wolf Theiss
Panellists
  • Peter Nemcek · CTO, Cybergrid
  • Krasimir Velchev · CEO, El Ex Corporation
  • Representative of CAPALO
  • Representative of Optimus Energy
Session Powered by
17:10 – 17:50

Session 8 | Decarbonisation Strategy in Uncertain Times

Decarbonisation commitments are under pressure across Europe due to rising energy costs and geopolitical volatility. For energy-intensive industries in SEE, the question is not simply how to decarbonise, but how to do so while remaining competitive. This panel brings together industrial offtakers, policy experts, and energy strategists to examine how companies in the region are recalibrating their decarbonisation roadmaps and how the EU’s energy security agenda is reshaping investment decisions.

Panellists
  • Konstantin Stamenov · Chairman, BFIEC

Speakers

Nikola Mihajlovic

Senior Investment Officer Infrastructure and Energy - IFC

Stella Zacharia

CEO - Optimus Energy

Konstantin Stamenov

Chairman - BFIEC

Mihaela Nyerges

Managing Partner - Nyerges & Partners & Board Member of RPIA

Andrej Stancik

Senior Policy Advisor - Energy Traders Europe

Dimitar Zarchev

Director of the National Dispatch Center - ESO, Bulgaria

An Yang

Director - Huawei Digital Power Southeast Europe

Julian Gikov

Managing Director - Raiffeisen Bank International, Vienna & CEO - Raiffeisen Advisory, Sofia

Rossitsa Voutcheva

Managing Partner - Ilieva, Voutcheva & Co Law Firm

Rositsa Chopeva

Partner - xFigureFinance

Alexander Zahariev

Head of Strategy - SUNOTEC

Dimitar Kirchev

Bulgaria's Country Manager - Sungrow

Severin Vartigov

Chief Commercial Officer - Enery

Malina Stroumina

Manager - Baringa

Dr. Christian Maly

Team Lead PPA Origination Asia, SEE, Poland - wpd onshore GmbH & Co. KG

Johanna Bonilla

Business Development Manager Europe - Jinko ESS

Milan Kamaryt

PPA Origination - Rezolv Energy

Viktoriya Kerelska

Director of Advocacy & Messaging - WindEurope

Andrej Dernikovic

Advanced Energy Services Origination Department Manager - GEN-I

Ana-Maria Florea

Senior Energy Origination Manager - Metlen Energy & Metals

Gerhard Schubert

Technical Sales Consultant - Siemens

Velizar Chlakov

Head of Business Development - HEC Solar

Filippos Falieros

Research Advisory Lead - Aurora Energy Research

Mariyana Yaneva

Vice Chair - Association for Production, Storage and Trading of Electricity (APSTE)

Miglena Stoilova

Chairperson - Bulgarian Wind Energy Association (BGWEA)

Valery Drenikov

Chairman - ATEB

Daniel Dang

Director Business Development - SolarPower Europe

Christos Nakos

Director of Trading Operations Transformation - PPC

Kostantsa Rangelova

Global Electricity Analyst - EMBER

Konstantin Altandzhiyski

Senior Associate - CMS

Marc Fèvre

Legal Consultant - Rezolv Energy

Dimitar Dimitrov

Business Development Manager - REIB

Krasimir Zhivachki

BESS Product Manager - Enery

Peter Nemcek

CTO - CyberGrid

Tamás Szentirmai

Regional Sales director - Photomate S.R.O

Ivo Tsachev

Founder - VoltKeepers

Philip Gueorguiev

MD and CCO - EnAuxo

Apostol Radev

Founder and CEO - SolarSteam

Krum Krassin

Business development § Financial Planning - Promenergomontazh

Nikola Gazdov

Chairman - Association for Production, Storage and Trading of Electricity (APSTE)

Radoslav Mikov

Partner - Wolf Theiss

Krasimir Velchev

Natalija Ljubic

Filip Balev

Synergon

Partners of RE-Source Southeast 2026

Institutional Partners

Strategic Partners

Networking sponsor

Session Sponsors

Sponsors

Partner organisations

Event support organisations

Media Partners

RE-Source Southeast 2026

Standard ticket for participation

399
  • Price in euro excl. VAT
  • Use coupon code EARLYBIRD, valid until April 30, 2026

For members of APSTE and BGWEA

169
  • Price in euro excl. VAT
  • Use coupon code EARLYBIRD, valid until April 30, 2026

For online participation with livestreaming

100
  • Price in euro excl. VAT
  • Use coupon code EARLYBIRD, valid until April 30, 2026

Corporate renewable energy consumers*

0
  • Price in euro

* For corporate renewable consumers – up to 2 representatives from one organisation

Become a Sponsor of RЕ-Source Southeast 2026

Choose a sponsorship package

Introduce your company

Position your brand

Share your ideas

Venue