Development of future-ready heat solutions
based on geothermal energy.

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Our focus is on the planning, implementation, and integration of economically viable systems—with medium-depth and deep geothermal energy as the backbone.

Through intelligent system integration and modern infrastructure, we create holistic supply solutions that make municipal and corporate climate targets achievable in the long term.

Tailor­made solutions for your geothermal project

The following benefits make geothermal energy a future-proof solution for sustainable energy supply:

 

  • Secure supply and baseload-capable
  • Operationally reliable through domestic technology
  • Independent of imported energy sources
  • Climate protection and CO₂ neutrality
  • High efficiency and minimal land use
  • Cost-effective in the long term and future-ready

We support you comprehensively on the path to a sustainable energy supply. Explore our service portfolio here.

With our expertise, we guide your geothermal project from the initial idea through to implementation.

Three stages.
One goal: decarbonized heat.

NULLCOZWEI supports the key steps on the path to geothermal heat supply—from initial analysis through to long-term operation.

Potential analysis – your entry into the deep

FAST. PRECISE. SITE-SPECIFIC.

Our potential analysis provides a well-founded initial assessment for municipalities, project developers, and asset owners—whether as a basis for ESG evaluation, investment decisions, or municipal heat planning.

What you receive:

  • Analysis of geoscientific data for an initial site assessment
  • Assessment of technical feasibility (heat output, geothermal temperature, drilling depth, target horizon)
  • Review of regulatory and technical framework conditions
  • Alignment with regional plans and strategies
  • Evaluation of project feasibility and a clear recommendation on next steps

Your benefits:

  • Rapid site assessment with high informational value
  • Objective guidance on the feasibility of geothermal development
  • A valuable decision-making basis for planning, ESG strategy, and project preparation

Project development – we manage implementation

From concept to operational plant.

NULLCOZWEI supports every phase of project development—with an experienced team, a strong partner network, and a clear focus: timely implementation with a high level of planning certainty.

Our approach:

  • Collaboration with regional partners
  • Involvement of municipal authorities
  • Plan, finance, build, deliver heat
  • Reference projects under development (e.g. Bad Bevensen from Q4/2025)

Our vision:

We ensure that geothermal projects are not just envisioned, but actually built.

Heat supply & contracting – heat that lasts.

Long-term supply. CO₂-free. Operated by us.

NULLCOZWEI offers contracting models for geothermal heat supply. We develop, build, and deliver energy—as a reliable partner with a long-term perspective.

Your benefits:

  • Baseload-capable supply with stable prices
  • Independence from fossil energy sources
  • Operational reliability through domestic technology
  • Climate protection and CO2 neutrality
  • High efficiency and reduced land use
  • Cost-effective in the long term and future-ready
  • Etc.

Our goal:

Sustainable supply with technological depth and economic substance.

Our commitment: Geothermal energy that is not only planned, but implemented—reliable, efficient, and viable in the long term.

Expandable. Connectable. Future-oriented.

 

Our systems are designed to be modularly expandable and combinable with additional technologies as needed—such as storage systems, power-to-heat, solar thermal energy, or (where appropriate) hydrogen applications.

 

NULLCOZWEI does not just plan technology, but infrastructure for tomorrow.

P R O J E C T S

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Successful implementation for a sustainable future

Our projects stand for innovative solutions and the successful deployment of state-of-the-art geothermal technologies. With our deep understanding of technology and financing, we deliver sustainable energy projects that set new benchmarks.

Here we present a pioneering reference project that demonstrates how geothermal energy can be used efficiently and in a climate-neutral way. This project was realized by us as part of

Grünwald/­Oberhaching geothermal power plant

Deep groundwater from the Malm formation at a depth of approximately 3,700 meters. This pioneering project supplies the region with sustainable, environmentally friendly energy used for both electricity generation and heat supply.

  • Energy generation: Electricity and/or heat from deep geothermal energy
  • Project duration: 2013 to 2015
  • Capacity: 3.8 MW (electrical) / approx. 30 MW (thermal)
  • Supply: District heating for 3,500 residential units
  • Project volume: approx. EUR 120 million (incl. district heating networks)

The planning, engineering, and parts of the construction were carried out as part of a joint venture led by INTEC GMK, represented by Aldo Piacentini-Timm. This project compellingly demonstrates how deep geothermal energy can enable a sustainable energy future.

Learn more about our expertise.

Sophienstraße 26/27
10178 Berlin

kontakt@nullcozwei.com
+49 30 28484332

Copyright © 2026 NULLCOZWEI GmbH

Imprint and Privacy Policy

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