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At Haya Energy Solutions, we are committed to keeping our clients and partners informed about the latest trends and developments in the energy sector. Our news section offers in-depth analysis and relevant updates that impact the energy markets in Europe.

We invite our readers to subscribe to our monthly energy newsletter, where our team of experts shares timely articles and unique insights into the evolving dynamics of the energy landscape. Stay informed and make strategic decisions backed by our deep expertise.
Grid network to illustrate the newsletter article about negative power prices

Negative electricity prices in Europe: What drives different market outcomes?

Pablo Gandullo Romero 21 July 2026

1. Negative electricity prices: an increasingly common phenomenon   Negative electricity prices emerge when the supply of electricity exceeds demand, causing the wholesale market price to fall below zero. This means that generators exposed to the spot price must effectively pay to continue injecting power into the grid. Nevertheless, production

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Each month, one of our experts publishes an article describing his view on a specific topic of the constant changes taking place in the energy market, with special focus on the French market.

Exploring the energy Landscape

The energy sector is constantly evolving, influenced by the transition to renewable energy, technological innovation, and regulatory changes. Through our articles, we analyze these dynamics and their impact on the market, providing a comprehensive view of the industry’s challenges and opportunities.

Analysis, Strategies and Best Practices

Beyond informing, we aim to add value with practical strategies and recommendations based on our expertise. Here, you’ll find guides on energy optimization, price management, renewable energy integration, and other key areas to enhance competitiveness and sustainability.

Industry Trends and forecasts

In a rapidly changing environment, staying ahead of trends is crucial. That’s why we compile data, reports, and studies to help you understand where the energy market is headed and how to adapt to future challenges.

Commitment to excellence in information

Each of our articles is developed with a commitment to delivering accurate and up-to-date content. Our team of experts ensures that you always have access to the latest insights and developments in the energy sector.

Explore our articles and stay informed about the latest energy trends. At Haya Energy Solutions, we are here to help you navigate and make the most of the opportunities in the energy market.

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Each month, one of our experts publishes an article describing his view on a specific topic of the constant changes taking place in the energy market, with special focus on the French market.

Biography

Diego is a Consultant at Haya Energy Solutions. He has 1 year of experience specializing in developing models for energy price forecasting, energy availability and production, and battery optimization.

Diego obtained a bachelor’s in Science in Political Economy from the King’s College London, and later a dual Master’s in Management and Computer Science from the IE University of Madrid.

Diego Marroquín

Consultant

Diego Marroquin - Consultant | Haya Energy Solutions
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Biography

Céline is the Head of Business Development and Administration at Haya Energy Solutions. She plays a key role in driving the company’s growth by expanding its market presence, strengthening brand positioning at the European level and implementing strategic initiatives. She also manages the company’s administrative operations, ensuring efficient financial management, including accounting and budget oversight.

She is also a Consultant at Haya Energy Solutions, specialising in the optimisation of energy procurement through the analysis of market trends and regulatory developments. She also provides strategic guidance to identify opportunities and tailor solutions to the specific needs of each client.

Céline holds a degree in Philology from the Sorbonne University and holds a master’s in Project Management and Cultural Tourism from the University of Clermont-Ferrand.

Céline Haya Sauvage

Head of Business Development and Administration

Céline Haya Sauvage | Haya Energy Solutions
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Investment Advice

  • Definition of investment strategy
  • Technical advice on investments
  • Investment assessment (CAPEX, DCF, profitability)

“Decarbonization of the Energy and Transport sectors is arguably today’s main economic driver for the industry.”

Biography

His career started in civil engineering as a Project Manager in France, Martinique and Australia. Afterwards, he became the General Manager of a subsidiary in Venezuela. In 1992, he established Dalkia in Germany (district heating, cogeneration, and partnerships) and represented Véolia in Thailand. In 2000, he opened the commercial office of Endesa in France to take advantage of the liberalized retail market. From 2006, as a development Manager at Endesa France, he led Endesa’s plan for Combined Cycle generation in France and developed the wind and PV portfolio of Snet at the same time. 

Philippe worked for 3 years at E.ON’s headquarters coordinating the company´s activities in France. He was strongly involved in the French hydro concession renewal project. As a Senior Vice President – Project Director at Solvay Energy Services from April 2012 to February 2014 he was in charge of the H2/Power to gas and European direct market access deployment projects. Philippe has been an HES expert since 2014.

Philippe holds engineering degrees both from the Ecole Polytechnique and the Ecole Nationale des Ponts & Chaussées (France) and has a combined experience of more than 25 years in energy and infrastructure. In addition to English, Mr. Boulanger is fluent in French, German & Spanish.

Philippe Boulanger

Electricity Expert

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“The world is changing. New investors pay particular attention to the energy sector while historical actors adapt their position to the market.”

Biography

Antonio is the founder and President of Haya Energy Solutions, a specialized consulting firm focused on the energy sector, which has developed M&A projects in renewable and conventional power generation, cogeneration, district heating, gas and power retail, energy procurement and power optimization in France, Spain, Portugal, Germany and UK.

Prior to this, Antonio was CEO of KKR’s CELEST Power in France (2x410MW CCGT). He was also CEO of Endesa France and General Secretary, Strategy & Corporate Development Director at E.ON France. Formerly, he held different positions at Endesa, including Responsible for M&A at Endesa Europe and Regulation Specialist at Endesa Distribution.

Antonio holds an MBA from the University of Deusto and a degree in Industrial Engineering from the Higher Technical School of Engineering of the University of Seville.

Antonio Haya

President

Antonio Haya - President | Haya Energy Solutions
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