About the Jouliette application

The Jouliette application can be accessed by authorised users and, subject to their permission level, they can:

  • View graphs of consumption and production at their location
  • View their total CO2 savings, along with total produced and consumed
  • View the balance of tokens in their wallet
  • Configure their market trading rules
  • View the history of transactions
  • View an estimate of their energy bill
  • Place, view or fulfil orders at the cafe using tokens
  • Create offers on the community marketplace
  • Configure their user settings
  • Administer the energy costs, low tariff conditions and taxation details

De Ceuvel

De Ceuvel is one of the most sustainable and unique urban developments in Europe, also known as “the Cleantech Playground” in Amsterdam. Since the start of the initiative in 2012, the former industrial plot has become a circular economy hotspot and thriving community of entrepreneurs, artists and citizens from Amsterdam and all around the world. The plot hosts creative workspaces, a podium, greenhouse, sustainable café, spaces to rent and, a floating bed & breakfast and, in the near future, an organic waste digester for local production of biogas. As a thriving hub for innovation and experimentation, De Ceuvel has become a veritable living lab, where new concepts and technologies can be validated before scaling up for wider implementation.


Spectral is an end-to-end system integrator, specializing in software development, smart grids and deployment of smart energy services. Spectral develops technological solutions that unlock the value of energy storage, demand flexibility, and locally produced renewable energy, propelling the evolution of smart energy networks. Based in Amsterdam, Spectral is actively working towards realizing the vision for “Circular Buiksloterham,” a project which aims to set a new global standard for the development of circular cities. By closely collaborating with key stakeholders, such as the Amsterdam municipality, local water and energy utilities, and area developers, Spectral aims to accelerate the transition towards 100% renewable, clean energy supply, and to lay the foundations for a resilient, smart society of the future.