Croatian state-owned energy services company HEP ESCO has launched a €5.3 million tender for the installation of 90 rooftop solar power plants at HEP facilities across Croatia. Bids are due by 3 November. The procurement is structured into multiple regional lots covering different parts of the country.
Regional lots and estimated values
The first regional group covers Zagreb and surrounding areas, with an estimated value of €1.2 million. The second group is valued at €770,000 and includes technically demanding sites. These include the Zavrlje, Orlovac, Peruca and Zakucac hydropower plants in Dalmatia, as well as distribution facilities between Split, Nin and Preko.
The third and largest group has an estimated value of €1.21 million. It covers Slavonia and includes solar installations at 20 HEP electricity-distribution and HEP Plin facilities. The locations mentioned include cities such as Virovitica, Pozega, Vinkovci and Vukovar.
Additional site coverage across Croatia
The fourth group is estimated at €1.11 million and covers 15 locations in Medjimurje, Zagorje and the Sisak-Moslavina region. This lot includes the Ozalj hydropower plant among its listed sites. The fifth group is worth €1.035 million and comprises 23 sites.
The fifth lot spans Istria, the coastal Primorje region and Gorski Kotar. It includes hydropower facilities in Fuzine, Rijeka and Vinodol, along with distribution centers in Pula, Rovinj and Opatija. Together, the five groups cover rooftop solar installations at HEP-linked sites across these regions.
Turnkey scope, bidding options, and timeline
Contractors are required to deliver turnkey solar systems, including both design and construction work. The scope also includes handing over fully operational installations upon completion. Bidders may submit offers for individual regional groups or for all five regions.
Contracts are expected to be signed within 90 days of contractor selection. All installations must be completed within 18 months of contract signing.








