Establishing and maintaining strong relationships with business partners is critical to ensuring continued project development success. Greta Energy regularly associates with the following professional organizations.

International Consultants

Greta Energy works closely with world recognized consulting companies, namely Garrad Hassan and Partners (UK, in wind energy and Mott MacDonald (UK, in hydro power.

Local consultants


Reputable consulting and development company Hendrikson and Ko. (Estonia, has been conducting detailed planning and strategic environmental assessment for the Purtse, Udria and Hiiumaa wind farms. Hendrikson has over 15 years of experience in this field.


Feasibility studies for the wind projects in Russia are carried out by Garrad Hassan and reputable local engineering company Engineering Centre of UES (Russia, Studies for hydro projects are commissioned from local companies Hydroproject, Lenhydroproject, Teploelectroproject, Firm Orgres and are further reviewed by Mott MacDonald.

Bosnia and Herzegovina

Concept projects and pre-feasibility study for the hydro projects in Bosnia were commissioned from specialized engineering companies Conel Company, d.o.o. (Tuzla, Bosnia and Herzegovina) and BICAKCIC, d.o.o. (Sarajevo, Bosnia and Herzegovina), which have extensive references in this business. The studies are further reviewed by Mott MacDonald.

Wind monitoring equipment manufacturers

Wind monitoring systems, instruments and related services are supplied by Nexgen (UK, – leading manufacturer of the wind monitoring technology in Europe. Greta Energy has valued customer relationships with Nexgen, which allows us to receive quality products and services at discounted prices. Greta Energy has so far purchased seventeen 70m Class 1 Hi Mast systems from Nexgen for different projects.

Greta Energy hires local engineering professionals to project and erect measurement systems at the sites. For the supervision of the mast installations, Greta Energy retains independent specialists from Solar Wheel (UK,, who are the pioneers in the industry since 1980.

Wind turbine manufacturers

Vestas, the leading manufacturer of wind power equipment in the world, has shown strong interest in the projects of Greta Energy and has expressed willingness for long-term cooperation with our company. Greta has received several proposals from other manufacturers for the delivery and installation of wind turbines for the Purtse project, including Enercon, Clipper Wind, and Gamesa.

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