Consultorias de Geotermia Adal G, S.L. is a family business combining Swiss precision with Spanish efficiency. Founded and led by Adalgisa Alcantara Parra. Your contact, Etienne Spruijt, brings over 30 years of experience in well drilling and shallow geothermal energy. Our mission: affordable, highly efficient ground-source heat for the Swiss and Spanish markets. Etienne’s personal prior drilling experience includes depths of up to 480 m. The current Separatus offering covers drilling to 140 m.
Geothermal Expert
Etienne brings over 25 years of experience in shallow geothermal energy. A pioneer in the Swiss market, he has planned and supervised hundreds of installations. Today he transfers his know-how to the Spanish market — with the Separatus System as its technological core.
Managing Director & Project Coordination
Adalgisa connects the two markets. With her dual expertise in Switzerland and Spain, she coordinates projects, authorities and partners — and ensures every installation goes into operation on time and reliably.
Every installation begins with precise geology and ends with measurable efficiency.
We build energy systems for generations — robust, long-lasting, low-CO₂.
We accompany our clients from the first conversation through to operation — as a reliable partner.
2003
Qualified as master well driller and specialist
2007
Started as drilling master for shallow geothermal energy in Switzerland
2012
Managing director of a renowned Swiss geothermal drilling company, specialised in planning and geothermal drilling
2014
Partnership with Geser Erdwärme, specialist in geothermal accessories
2025
Partnership with Separatus
2026
Founding of Consultorias de Geotermia Adal G, S.L. by Adalgisa Alcantara Parra
2026
Several projects in Spain with Separatus completed and in planning
Let's evaluate feasibility and the potential of your site together. No obligation, with competence.
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