More information
Description
The City of Sisak and Komunalac Sisak d.o.o., the company founded by the Sisak City, have decided, with the aim of reducing CO2 emissions, to start the production of geothermal energy for direct use in heating. The project will be implemented on the approved exploration area of geothermal water "Sisak 1". Focus of exploration is two areas in Sisak; first is drilled by the geothermal well Siter-1 in late eighties and second is not jet explored area of Sisak North. In both areas district heating of public and private objects is planned. In the first phase, the existing Siter-1 well (17 l / s, 54 oC) will be activated for the purpose of heating sports facilities and nearby public and private objects. In the second phase, after obtaining the license for exploitation, a production injection pair of wells for district heating in the Sisak North area will be drilled. The EEA Grant project that is submitted by the City of Sisak refers to the preparation of documentation in the exploration phase, namely the Study of the possibility of using geothermal energy in Sisak town and formal documentation required in exploration phase for conducting the exploration activities. As a part of the Study of the possibility of using geothermal energy in Sisak town, the HD measurement in the well Siter-1 will be performed together with the new MT measurement at the Sisak North area. Set of documentation required for the Siter-1 well testing will be prepared according to the Croatian legislation. After well testing, Formal study on geothermal water resources in the exploration area of geothermal water "Sisak" will be prepared. That will be the base for preparing documentation for acquiring exploitation license for the geothermal field ''''Sisak'''' that will comprise of at least two production areas, Siter and Sisak North.
Summary of project results
Project "Technical documentation for the direct exploitation of geothermal energy in the area of the City of Sisak" aimed to resolve issues related to the determination of geothermal potential in the area of the city of Sisak, including determination of the size of the geothermal reservoir, analysis of reservoir features, assessment of the energy potential of the reservoir, and the possibility of using these potentials. Determining the geothermal potential is key to determining the amount of energy that can be produced, which directly affects the planning and scope of geothermal energy use. The obtained results of the well test enable a precise assessment of the energy potential of the deposit, which is essential for optimizing exploitation and ensuring long-term sustainable use of resources. The project contributes to the reduction of CO2 emissions by switching from fossil fuels to geothermal energy. Detailed research and planning minimize negative environmental impacts and ensure sustainable use of resources.
The activities carried out were directed in several directions, such as the preparation of technical documentation for geothermal energy and knowledge transfer. The activities of the preparation of technical documentation for geothermal energy include the preparation of the documents:
- Documentation for the performance of hydrodynamic measurements and thermodynamic tests in the Siter-1 well (Conceptual design of the oil-mining works testing the Siter-1 well and Oil-mining well project for overhaul works),
-Study of the geothermal potential of the "Sisak-1" geothermal water exploration area, which includes data preparation, MT data recording, HD measurements and TD tests, interpretation of the obtained data, textual and graphic formatting in the form of a Geothermal Potential Study.
- Elaborate on geothermal water reserves in the Sisak-1 geothermal water research area.
- Documentation for determining the exploitation field (Preliminary oil-mining development and exploitation project in the area of IPG Sisak-1, as well as Oil-mining development and exploitation project in the area of IPG Sisak).
Promotion and visibility activities were carried out in the form of workshops in Sisak with the aim of gaining insight into the different uses of geothermal energy and for the dissemination of project results, as well as the creation of leaflets, brochures, and the creation and installation of a commemorative plaque next to the well. Also, representatives of Project Promoter and Project Partner attended study trip to Iceland, with the theme Energy and Environmental Protection. The trip included a visit to the companies Arctic Green Energy and EFLA Consulting Engineers. Also, the meeting with representatives of the Icelandic Ministry of Energy on the topic of energy policies was organized.
1. Prepared technical documentation
o Conceptual project of oil-mining testing works and oil-mining well project for overhaul works
o Geothermal potential study and performed analysis
o Elaboration on the geothermal water reserves of the future geothermal water exploitation field "Sisak"
o Conceptual development and exploitation project for the exploitation field
Impact of project results on target groups:
1. Local community
o Reduction of CO2 emissions:
The use of geothermal energy reduces the need for fossil fuels, which directly reduces harmful gas emissions.
Better air quality and a healthier environment contribute to improving the quality of life.
o Reduction of heating costs:
Geothermal energy can be cheaper compared to fossil fuels, which reduces heating costs for households and public institutions.
2. Public institutions
o Reliable source of energy:
A stable and long-term source of geothermal energy can provide continuous heating for swimming pools, kindergartens and other public buildings.
o Cost savings:
Lower energy costs allow funds to be diverted to other important projects and services.
3. Private sector
o New business opportunities:
The development of geothermal resources can create new jobs in the energy, engineering, and maintenance sectors.
o Economic growth:
Investments in geothermal infrastructure can boost the local economy through employment and entrepreneurship.
4. Investors and financial institutions
o Security of investment:
Confirmed reserves and studies reduce the risk of investing in geothermal projects.
o Long-term sustainability:
Geothermal energy offers stable and long-term returns on investments, which is attractive for investors.
5. State and local authorities
o Achieving climate goals:
Reducing CO2 emissions and switching to renewable energy sources help to fulfill national and international obligations related to climate change.
o Energy security:
The diversity of energy sources reduces dependence on the import of fossil fuels and increases the country''s energy security.
The achieved results of the project, including the preparation of technical documentation, the study of geothermal potential and the study on geothermal water reserves, provide a solid basis for the transition from the exploration to the exploitation field. These results have a broad positive impact on various target groups, including the local community, public institutions, private sector, investors and authorities, contributing to the technical, economic, environmental and social sustainability of the project.