Innovative energy leaders

Meet our group of talented scientists, technologists, engineers, and experienced business executives. With over a decade of dedicated work, our professionals have played a significant role in developing this groundbreaking technology, accounting for an impressive 60% of the world’s installed thermal energy storage.

Unmatched expertise

With an unparalleled track record in product development for the power industry, we have led numerous global and esteemed technological projects. Our team has earned recognition and accumulated extensive knowledge in our field, making us the trusted experts to deliver exceptional solutions.

Financial strength

We tackle each challenge head-on, providing comprehensive solutions that address specific problems. Our commitment goes beyond technology, we offer solvency and financial stability to ensure your confidence in our partnership.

Collaborative approach

With an open-source code attitude, we embrace coopetition, actively collaborating with other organizations to develop state-of-the-art technology and foster innovative ideas. Together, we can shape the future of the energy industry.

An experienced team that knows what to do

Joaquín Coronado Galdos


More than 35 years’ experience in energy and renewables

Former Managing Director of EDP, CEO of EDP Spain, Chairman of NEO (today EDP Renewables), and Vice chairman of Naturgas. Joaquín has also being director at the board of REE, the Spanish TSO, and OMIE, the Spanish NEMO. From 2008-2015 he was partner at PwC Spain leading the Deals & Consulting practice and being part of the global energy & infrastructure team where he advised his clients in due diligence and M&A engagements. In the last seven years, he has been engaged as founder and investor in several energy and infrastructure projects raising for than $2.5 bn in funding. He also serves at several boards in Spain and US.

Miguel Méndez Trigo


More than 10 years’ experience in concentrated solar and thermal storage

Former Head of Abengoa Renewables and Energy Storage unit, he has been involved in the most relevant concentrated solar thermal projects in Spain, USA, South Africa, Chile and Middle East. Miguel is a renowned expert in molten salt storage projects having participated in the development, design, construction and operation and maintenance (O&M) of more than 16 GWh of installed capacity worldwide. In the last 10 years he has led international multidisciplinary teams to deploy smart renewable energy solutions in the power generation and heavy industry sectors, helping them to decarbonize their energy matrix and becoming carbon neutral through renewable resources.

Enrique Barreiro Nogaledo


More than 25 years’ experience in energy, renewables and infraestructure

Former CEO of Ecisa and Isolux Corsan, started his career in Abengoa where he led as Managing Director the Latam and the USA Engineering and Construction businesses. Enrique is an expert in developing, engineering and constructing complex energy and renewables infrastructure projects. He has led projects and organizations in more than 10 countries. Since 2014 Enrique has been engaged as founder and investor in energy and infrastructure startups.

Cristina Prieto Ríos

Scientific Advisor

Holder of 13 patents in thermal storage technology

Cristina is Associate Professor at the University of Seville, Spain. Former director of R&D at Abengoa, she has been dedicated to developing thermal storage solutions for concentrated solar thermal applications. She has led more than 20 international R&D projects related to thermal storage. Cristina has more than 50 papers in journals of the citation index and holds 13 patents. She earned her PhD through research in molten salts storage solutions and she has participated in the “SET-Integrated plan” of renewable technologies of the European Commission and acts regularly as external evaluator of the European Research Programmes.

Winfried Ortmanns


More than 20 years’ experience in product development in multinational companies

Former head of engineering at SunTechnics and Managing Director of Ferrostaal Solar and STEAG Energy Services Solar. Winfried has more than 20 years of experience in product and process development in multinational companies, leading projects valued EUR 300+ million as engineering, project and contract manager. Winfried acts regularly as an independent advisor to international organizations such as the World Bank.

Guillermo García Rivero


More than 15 years’ experience in engineering for energy and renewable projects

Former head of process engineering unit at Abengoa, Guillermo has been involved in projects amounting more than 2.000 MW of conventional and renewable energy. He is a renowned specialist in process and mechanical engineering and in operational troubleshooting of thermal processes with special focus in concentrated solar thermal and molten salt storage solutions. Guillermo has acted as lead process engineer at international companies such as Flagsol, Ferrostaal, and SunTechnics.

Join our rising team

Build to Zero is experiencing rapid growth and we are actively seeking talented individuals to join our team. Together, we can amplify our impact on the mission to decarbonize the industry. Apply now and be a part of our journey towards a sustainable future.

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