About Us

Greensolver, wind & solar expert

A pure service player focused on
delivering value for its customers




Greensolver was created as we felt there was a real need in the market for an experienced and independent service provider catering to the infrastructure investors to deliver professional, world class services.

Greensolver was until 2013 a subsidiary of Veolia Environnement and Eolfi where it became quickly a leading independent technical expert in the field of renewable energy. In April 2013, following an MBO, Guy Auger, its current president, bought Greensolver via Green Services Group.

Early 2016, Greensolver merged with Dutch asset manager PLY Energy to expand our service offering in northern Europe. In 2018, we acquired british asset manager ENTAP to consolidate our global European presence and deliver an enhanced wind & solar asset management to investors.

We benefit from 4 European offices (Paris, London, Groningen & Dublin) and 45 employees dedicated to assets optimization.

Our ambitions are global but we remain a human-sized company, owned by people who manage assets every day, adapt quickly to an ever-changing market and have a vision of further growth for our company.


Greensolver is certified with ISO 9001 (quality), ISO 14001 (environment), ISO 55001 (asset management) and OHSAS 18001 (Health & Safety). Those certifications confirm our commitment to improve continuously and deliver our services with the highest level of quality and sustainability and within health & safety standards.




We are truly independent. We do not develop projects we don’t own assets, and we never will. This ensures our customers get our full, undivided attention and ensures no conflicts of interest between us.

We don’t see ourselves only as asset managers, we see ourselves as assets maximizers. From construction to operation and consulting, we go beyond and constantly look for ways to get more production out of the asset and over a longer period of time.


Working with us

Our team of experts handles both TCM, construction & advisory missions. This means that as a customer you always get experienced professionals working for your assets.

Each customer also benefits from a dedicated account manager, which act as your single point of contact within our organization. Responsible of coordinating all activities related to your assets, he is responsible (and paid on) the results of your wind or solar asset.

Innovation being one of our priority, each asset manager benefits from 10% of his time dedicated to it. Thanks to that, we’ve been able to develop innovative solutions (Greensolver index, GreenBoost & Bladesolver) & piece of mind articles allowing you to take most advantage out of your assets.


Our team

Guy Auger
Chief Executive Officer

Guy is Greensolver’s CEO, a company he founded back in 2008 when part of the Eolfi Group. He bought Greensolver with JOHES SA Company in 2013. Guy has worked as CFO and then CEO of international groups in Europe before joining Eolfi, a pioneer of the renewable energy sector in 2008, as Deputy General Manager. Guy is a Chartered Accountant (CA), graduated from McGill and Stanford (executive education).

Alexander Harssema
General Manager

Alexander is the General Manager since Greensolver merged with PLY Energy, early 2016. Alexander oversees Greensolver’s strategy and is also a recognized expert for wind farms construction and maintenance. He has a solid experience in the field of renewables energies, working in the industry since 2007. Before joining Greensolver, Alexander was Partner at PLY Energy, a company he bought back with Gerben Smit in 2014.

Carla Vico
Operations Director

Carla joined Greensolver in July 2013 as the Director of Operations, she oversees our engineers and technicians who manage construction and operation of parks and our due diligence and advice records.
Carla has a solid industry experience, specially having worked for more than seven years at Iberdrola Renovables where she was responsible for the operation of all of their French parks (320MW). Carla is an Engineer from the University Carlos III of Madrid.


Marcia Pereira
Financial Director

Marcia is part of the Greensolver team since the origin of the company. Since 2013, she is our financial director and oversees the teams responsible for keeping our clients’ accounts.
Before joining us, Marcia was chief accountant for the Oliver Wyman Group. Marcia graduated from the Grenoble Business School, and has a DESS diploma in Business Accounting and Financial Audit.

Denis Buckley
General Manager Ireland

Denis has been working in the field of renewable since 2014 and has joined Greensolver in 2018 as General Manager. Benefiting from a strong technical expertise in the wind industry, Denis develops our presence in the Republic of Ireland and ensure Due Diligence mission, delivering its unique opinion.

Ypatios Moysiadis
Business Development Director

Ypatios has been working in the renewable industry since 2006 and has joined Greensolver in 2018. Ypatios has been able to develop over the years long-standing relationships & experience in both wind and solar industries, making of him an expert in his field. Ensuring our services continue to evolve & meet the challenges of the renewable market, Ypatios is responsible for developing our presence all over Europe.

Board Member

Jean-François Vaury
Member of the Board

Manager of the JOHES SA company, specialized in renewable energy and energy efficiency, Jean-François bought back the company with Guy in 2013. Jean-François held various positions in the energy sector before creating Ciclad in 1988, a French private equity leaders to SMEs, which he directed until 2011. Jean-François graduated from the Ecole Normale Supérieure, with a Mathematics Agregation.

Gerben Smit
Member of the Board

Member of the board since Greensolver & PLY Energy merged early 2016, as a non-executive board member he advises and supports on Greensolver’s strategy. Gerben has held several position in the renewable energy & financial sectors, being previously Partner at PLY Energy. Gerben is graduated with a master’s degree in Business Economics of the University of Groningen, holds a Master’s degree of the Business University Nyenrode and is a Certified Public Accountant.



Solar Power Europe

Member of: Solar Power Europe

Member of Wind Europe: Wind Europe

Member of: IPFA

Member of: ODE Decentraal

Member of: Never Association


Job opening

We are always looking for new talents, do not hesitate to send us your resume to This email address is being protected from spambots. You need JavaScript enabled to view it.

- Energy Yield Assessment Engineer - London or Dublin

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- Key Account Manager - Paris

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- Technician - Wind turbine & PV Inspections - Paris

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- Energy Yield Assessment and DD Engineer - Paris

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Download our brochure

From construction to operation and advisory service, we are here to increase the profitability of your asset through our quality of services and deep understanding of the sector.