Letter of support for Geothermal Baltic OÜ’s applied research project

Fr. R. Kreutzwaldi 5 / 44314 Rakvere, Estonia / [email protected] / www.egt.ee/en

From: Geological Survey of Estonia

To: Ettevõtluse ja Innovatsiooni SA (EIS)

Sepise 7, 11415 Tallinn

Estonia

07.03.2025 no 1-4/25-412

Letter of support for Geothermal Baltic OÜ’s applied research project

Geological Survey of Estonia is pleased to see Geothermal Baltic OÜ developing a project to

research geothermal potential in Estonia and the Baltics with the proposed applied research

project. We see the importance of deep wells in gaining valuable knowledge for assessing

geothermal energy potential and obtaining new data on Estonia’s geological structure,

especially its crystalline basement rocks. The project is also valuable for acquiring exploration

technologies and advancing drilling methods suited to Estonia’s geological conditions,

supporting exploration of geothermal resource and utilization.

We are interested in exploring further collaborations with Geothermal Baltic OÜ after the

successful completion of the applied research project at the Narva site. Our interest in

collaboration extends to obtaining drill cores from the deep wells to analyze Estonia’s basement

geology and conditions, as well as applying measurement technologies for geothermal

potential. Gaining new knowledge of assessment methods to support the sustainable and

efficient utilization of geothermal energy in Estonia will be mutually beneficial and enable

broader application of geothermal energy solutions.

Current document is not legally binding.

Sincerely

(digitally signed)

Jaak Jürgenson

Deputy Director of Geological Survey of Estonia