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C/sells – Smart Grids for the Energy System of the Future – project development and deputy project coordination

C/sells as an extensive show case project creates an east-west-solar arc connecting solar energy dominated "energy cells" solar cells with Baden-Wuerttemberg in the center. Due to the high solar generation and the mix of urban and rural areas, Baden-Wuerttemberg is predestined for the project. Furthermore, a diverse interaction pattern provides optimal conditions in order to implement new cooperation models.

In December 2015, C/sells was selected as one out of five demonstration projects within the German Ministry of Economy’s SINTEG (“showcase intelligent energy”) call. The project length is four years starting at January 2017.

Dr. Langniß – Energie & Analyse compiled a consortium with over 60 partners from business and academia. A detailed draft had been developed coordinating the comprehensive input of the partners. The draft presented the project’s content, approach, cost structure and organization with an overall scope of 100 million Euros.

Dr. Langniß – Energie & Analyse coordinated the complex application process of C/sells. Therefore, the draft was consolidated into a full proposal which represents the working basis for the four years of the project.

During the execution of the project, Dr. Langniß – Energie & Analyse is the deputy project coordinator.

Within its part of the project Dr. Langniß – Energie & Analyse develops and refines the open-source soft- and hardware OLI for peer-to-peer communication, coordination and energy exchange based on the blockchain and Ethereum and pilots this. This will make possible a small-scale balancing of consumption and production as well as an enabling of trading with small-scale local and regional flexibilities. LEA develops concepts for the use cases on certificates of origin, balancing group management, smart charging of electric vehicles as well as peer-to-peer matching. With the conception and pilot testing of blockchain in the outlined applications important references for the standardization of blockchain technology for the purpose of market and network communication will be derived. On the base of experience with pilot tests and demonstrations possible, necessary or desirable regulatory developments can be concluded. The objective is besides, to implement the blockchain technology as comprehensive as possible with other partners in C/sells.


  • Business development
  • Coordination of over 60 partners in the areas of resource planning and content development
  • Drafting of the full project proposal
  • Experts for Energy Policy and Energy Systems
  • Draft development
  • Link to public authorities
  • Advancement of the open-source soft- and hardware for the blockchain applications
  • Conception and pilot testing of blockchain applications

Link to the projekt

Customer: Smart Grids-Plattform Baden-Württemberg e.V., Hermann-von-Helmholtz-Platz 1, Karlsruhe (project development phase), EAM GmbH & Co. KG, Kassel (project implementation phase)


2014 - 2015 (draft phase)

2015 - 2016 (application phase)

2016 - 2020 (project phase)

Sector coupling and neighborhood with blockchain tokens for an innovation district – outline preparation for idea competition „Living labs of energy transition“

In an innovation district in development within a German metropolitan area an integrated and interactive energy concept is put into practice. Data driven technologies will be applied in a system facilitating manner. As such they will get analyzed: a building information model (BIM), high resolution (by time) measurement and control concepts for energy management and blockchain for agent-based trade of energy resources. Energy supply will comprise a set of completely renewable based components, such as PVT collectors for combined electricity and heat production, a low ex system for combined heating and cooling as well as the development of optimized operation strategies applying artificial intelligence. A blockchain technology-based market place will be created where players or assets in the district or from the neighborhood can carry out energy related transactions in an automated manner. Sustainability tokens are supposed to incentivize and reward sustainable behavior in the sense of a district’s currency.

The project leader for the district’s development charged Dr. Langniß - Energie & Analyse with the coordination of a funding project outline for the idea competition of the German federal ministry for economics and energy (BMWi). A consortium of eight partners, technology companies as well as research organizations and a regional manager being part, outlined the project collaboratively.



  • Draft of the funding project based on the urban management plan for the district
  • Acquisition of additional partners in the environment of the consortium consisting of both enterprises and research partner
  • Coordination of the whole process of outline preparation and submission

Customer: a real estate planner and developer

Year: 2019


Pre-study on the blockchain applications in an innovation district

An innovation district with offices for up to 10,000 people will be constructed within a large German metropolitan area till 2025. On site, an area of 90,000 m2 will be developed with a floor space of 241,800 m2. It includes 3,000 parking spots, 1,400 of them will be equipped with charging points. In addition to commercial and office spaces, living spaces for temporary and permanent residents will be provided. Electricity will come from PV plants in the district and the neighborhood and stored in the battery storage over time.

In this context, there is a special interest in opportunities of using blockchain technology. In a short study under contract from OLI Systems GmbH, Dr. Langniß – Energie & Analyse analyzed the potential based on specific applications, which are applicable to the innovation district. To these applications belonged tokenization of (energy) services, smart charging of electric vehicles, heat utilization and storage, battery storage, as well as PV (self-generation & integration of external plants). Economic efficiency of different applications and synergies between them were demonstrated. The study results were presented at an internal workshop with the customer and at an investor meeting.



  • Pre-study
  • Process modelling
  • Economic efficiency calculation
  • Presentation of results for customer and investor

Customer: OLI Systems GmbH, Stuttgart

Year: 2019


Pre-feasibility studies for renewable energy-based Mini-Grids and Energy Centres in Lesotho

Currently, approximately 60% of Lesotho households do not have access to the electricity grid. In the currently ongoing project „Development of Cornerstone Public Policies and Institutional Capacities to accelerate Sustainable Energy for All (SE4All) Progress“ investments in renewable energy-based mini-grids and energy centres will be catalysed. The project is expected to implement ten mini-grids and ten energy centres in 20 villages spanning five of ten Lesotho’s districts.

Together with the local partner KRATOS Dr. Langniß – Energie & Analyse composed pre-feasibility studies for five Lesotho’s districts, where current situation regarding energy supply and consumption in every village was described, potential of renewable energy sources and future development of energy demand were assessed, and possible variants of the energy supply were proposed. The project partners carried out interviews of households, institutional and business customers in every village, in order to identify current and future energy consumption, income level, as well as willingness to pay for energy services. Design of Mini-Grids and Energy Centres was developed in the software tool HOMER Pro. LEA calculated profitability values for every energy supply option. The project partners presented the study results on the stakeholder meeting in Lesotho.


  • Pre-feasibility studies
  • Energy system modelling
  • Questionnaire drafting and survey supervision
  • Presentation of results for stakeholders

Customer: United Nations Development Programme (UNDP), Maseru, Lesotho

Year: 2018



Shaping the Energiewende...


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