Learn more.
We assess sites systematically and reliably – from initial site analyses to robust feasibility studies.
→ Standardized entry point for the real estate sector, utilities, and municipalities
We support geothermal projects end to end – from the permitting phase through technical planning to construction supervision.
→ Full responsibility throughout the implementation process
We develop long-term heat supply models and implement contracting solutions together with our partners.
→ Economically sustainable solutions for energy supply
Decarbonizing heat supply is one of the fundamental challenges of the energy transition — especially where existing infrastructure and buildings cannot be replaced overnight.
NULLCOZWEI combines deep technical expertise with pragmatic execution. We analyze sites, manage complex geothermal projects, and deliver reliable, economical heat solutions with a long-term perspective.
We believe in solutions built to last. That is why we rely on deep technical expertise, close collaboration with leading minds in the industry, and measurable quality—working side by side with municipalities, project developers, and investors.
Our answer to regulatory pressure and climate policy targets is a holistic business model—combining intelligent analysis, expert implementation, and long-term security of supply.
“Those who unlock the potential of the deep today are building the infrastructure of tomorrow—quietly, capable of providing baseload, and CO₂-free.”
Steffen Krause, Managing Director, NULLCOZWEI GmbH
Join the team. Shape the heat transition.
NULLCOZWEI is growing—and we are looking for people who think ahead, develop ideas, and help shape the future. Whether as a working student, project engineer, or strategic thinker, you will work with us on solutions built to last.
Follow NULLCOZWEI on LinkedIn—for insights into pioneering geothermal projects, clear positions on the heat transition, and real solutions for CO₂-free energy.
Sophienstraße 26/27
10178 Berlin
kontakt@nullcozwei.com
+49 30 28484332
NULLCOZWEI GMBH
Sophienstraße 26/27
10178 Berlin
Represented by:
Steffen Krause
Email: kontakt@nullcozwei.com
Register Entry:
Registered in the Commercial Register.
Court of registration: Amtsgericht Berlin Charlottenburg
Register number: HRB 222896
The European Commission offers the possibility of online dispute resolution via an online platform. This platform can be accessed through the external link http://ec.europa.eu/consumers/odr/.
Data Protection:
On May 25, 2018, the new General Data Protection Regulation (GDPR) came into effect.
To contact you in the future, we require your consent, and the necessary form will be sent to you upon request.
The new GDPR (Data Protection Regulation) is extensive! It governs the handling of personal data, so changes have been made. Without your (explicit) consent, we cannot store or use any of your data, and after various deadlines, we will be required to delete it completely and will not be able to inform you.
If we do not receive your consent, we will not be able to contact you.
In short: Please review the new guidelines via this link. Among other things, you will find the following
information:
– Reasons for processing personal data
– Legal grounds for processing personal data
– Data protection user rights and how to exercise them
– Information on how to contact us regarding data protection
You can object at any time to the use of your personal data in general or for individual parts (e.g., only telephone number or email address).
contact@nullcozwei.com
+49 30 28484332
Sophienstraße 26/27, 10178 Berlin