Energy Planning.
Digital & Smart.

Your partner for holistic infrastructure and energy planning: We combine deep expertise with intelligent software and on-site facilitation.

Ein Computerbildschirm auf dem der Digitale Zwilling der Energieplanungsplattform von greenventory gezeigt wird.

Digital Twin:
The core of your energy planning

The digital twin virtually maps your entire energy system, from individual buildings to whole cities. By aggregating complex energy data, it enables building-specific analyses that provide a solid foundation for decision-making. Our modular platform empowers you to manage your projects independently and maintain full control at all times.

500+ municipalities, utilities & grid operators rely on greenventory for data-driven, forward-looking planning.

Grafik einer Stadt mit erneuerbaren Energien: Windräder und Photovoltaik-Anlagen

Successfully delivering energy projects

We bridge the gap between digital tools and practical experience. Whether dealing with municipal heat planning, grid design, or large-scale transformation projects – we clarify complex interdependencies and derive actionable measures. To us, energy planning means personal guidance, from the initial assessment to final implementation.

Grid operators

Energy suppliers

Municipalities & cities

Companies

Successfully delivering energy projects

We bridge the gap between digital tools and practical experience. Whether dealing with municipal heat planning, grid design, or large-scale transformation projects—we clarify complex interdependencies and derive actionable measures. To us, energy planning means personal guidance, from the initial assessment to final implementation.

Grid operators

Energy suppliers

Municipalities & cities

Companies

Your benefits with greenventory

End-to-end energy planning solutions

Analysis, stakeholder engagement, consulting, and software – we guide you through every phase of your energy planning. Everything from a single source.

Independent, modular platform

We develop our energy planning platform in-house, tailoring it flexibly to your specific requirements. It can also be deployed as a standalone software solution.

Holistic vision, local execution

We integrate electricity, heat, gas, and infrastructure into a unified approach – clearly structured to enable well-founded decisions on the ground.

From research to reality

As a spin-off of Fraunhofer ISE and KIT, we are deeply committed to ongoing R&D, delivering tailored solutions for even the most complex challenges.

Transparent & realistic planning

We translate complex data into clear insights to facilitate communication, improve stakeholder buy-in, and drive decisions that lead directly to implementation.

Die drei Gründer und Geschäftsführer Dr. David Fischer, Dr.-Ing. Sven Killinger und Dr.-Ing. Kai Mainzer im greenventory Bürogebäude.

Your partners for the energy transition

Who we are & what we do

To accelerate the energy transition, Dr. David Fischer, Dr.-Ing. Sven Killinger, and Dr. Kai Mainzer founded greenventory in 2019 as a spin-off of Fraunhofer ISE and KIT. Today, this vision has evolved into a robust team of nearly 90 specialists. Working in close partnership, we support municipal utilities, local authorities, and the wider energy industry with data-driven, fully compliant solutions.

Your energy project

Whether you are exploring an initial concept or mapping out a concrete project – we look forward to discussing it with you.