Trøndelag fylkeskommune (hereafter called the Contracting Authority or TRFK) shall procure a new energy follow-up system (EOS). The current system is Optima, owned by EG Norway and delivered by Entro AS. The annual combined energy use for the properties is in the range of 35 GWh electricity and 25 GWh thermal energy. Any measurements of street lights and or charging installations will come in addition, to the degree that these will be relevant for using this service/delivery. A well-functioning energy follow-up system is decisive for obtaining an overview and control of energy use, optimising operation and uncovering deviations, comparing status and development, as well as for exercising good energy management in the form of economic and environmental operations. Likewise, it is decisive to effectively report energy use to management at different levels in the organisation or to political leadership. Equivalently, it is desirable that EOS shall contribute to an overview of the use of water on the property, waste and any manual reporting of passenger transport. As Trøndelag county is already reporting through, among other things, Miljøfyrtårn and performs complete environmental reporting, it is requested that the new product has options as described in:Automatic report energy use in each building/facility, with an option for manual input where automatic meters are missing. Automatically report water consumption in each building/facility, with an option for manual input where automatic meters are missing. Automatically report waste amounts by type/fraction, with an option for manual entry where automatic meters are missing. Show climate gas emissions in CO2 equivalents connected to the operation of each building and for the entity in total. As far as possible report passenger transport to and from each unit and entity together. Where possible it is possible to integrate with the Contracting Authority's tool for property management and be able to read/write with this system. Where possible, the Contracting Authority can extract data from EOS to its own time series server in order to use data learning/artificial intelligence on the data basis. See annex 1 with sub-annex for a more detailed description of the extent.