The goal of the assignment is to create basis for scaling up one of the main ways of heat sector decarbonization in Ukraine. The purpose of this assignment is to: - Use the best available international experience to apply the technology to Ukraine - prepare a prefeasibility study for the technology application in the town of Starokostiantyniv. - Create a basis for technology scale-up by sharing key aspects of the pre-feasibility study with relevant stakeholders. - Create a proper regulatory environment for scaling up by proposing a clear roadmap for improvement and organizing consultations (among other activities. For more detail, we refer to component 3 under assignment description and activities.) - In general, raise awareness about use of surface geothermal technology for district heating as it is quite unknown in Ukraine. The project also includes a best-practice publication and a public discussion to present findings, share international experience, and identify policy measures—such as eliminating excessive taxes on well drilling—that can enable broader adoption. Ultimately, this initiative will contribute to reducing carbon emissions, increasing energy independence, and supporting the sustainable recovery of Ukraine’s heating sector. €100.000 excluding Dutch VAT and including (if applicable) local VAT and all other costs.