Greensolver was created as we felt there was a real need in the market for an experienced and independent renewable energy services 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 founder, 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 6 European offices (Paris, London, Athens, Groningen, Porto & Madrid) and 55+ employees dedicated to assets optimisation.

Our ambitions are global but we remain a human-sized company, owned by people who manage assets every day.

In February 2020, Voltalia acquired Greensolver. This transaction enables Greensolver to continue to improve the quality of our renewable energy services offered to our customers while giving us the means to accelerate our growth.

Voltalia is an international player in the renewable energy sector. It is a significant service provider, that offers EPC and O&M services in more than 19 countries worldwide. It also offers services through independent subsidiaries like Greensolver, in the field of energy efficiency (Helexia) and wind spares (My Wind Parts).  Voltalia also develops projects of various renewable energy sources (wind, solar, hydraulic, biomass, hydro and storage) that it then sells or retains. Voltalia is also a leader in the Corporate PPA market.

With Voltalia’s support, Greensolver will continue to offer independent advice to its customers, and now increase the speed of its development through the financial support of its mother company.







Greensolver, the most trusted partner in renewable energy. Your renewable expert.


Experts creating value for renewable investors to foster the low-carbon energy transition.

These certifications confirm our commitment to continuously improve and deliver our services with the highest level of quality and sustainability and within health & safety standards.

ISO 9001 (Quality)
ISO 14001 (Environment)
ISO 55001 (Asset Management)
ISO 45001 (Health & Safety)

Working with us

Our team of experts handle technical and commercial asset management, health & safety, construction & advisory (including PPA) missions. This means that, as a customer, you always get experienced professionals working on your assets.

Each customer also benefits from a dedicated account manager, which act as your single point of contact within our organisation.

As innovation is one of our priorities, each asset manager benefits from 10% of their time to focus on it. Thanks to that, we’ve been able to develop innovative solutions (Greensolver index & GreenBoost) and expert analysis articles, published regularly, allowing you to get the most out of your assets.

Executive Team

Carla Vico Rico


Carla Joined Greensolver in 2013 as the director of operations. She oversees our engineers and technicians who manage construction and operation parks, due diligence and advice records.

Carla has a solid industry experience, having developed within the Green Solver business for more than 9 years. Carla in her former years graduated as a Engineer from The University Carlos III of Madrid which is ranked among the 170 best universities in the world.

Katarzyna Siadak

UK & Netherlands Country Manager

Kataryzyna joined Greensolver In 2010 and has been in renewables since 2014. With experience across a variety of roles, including Head of Commercial and Business Delivery, and an impressive track record and proven success, Kat’s role has evolve quickly.

She has an excellent record of managing complex business operations and experience in overseeing development, construction and management of ground mount solar PV in the UK. Kat also sits on the board of directors for Solar Energy UK.

Marcia Pereira

Financial Director

Marcia has been a key person in the company since it was founder. She is our financial director and oversees the teams responsible for keeping our clients accounts.

Before joining us, was the 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.