BMS4Flexumers – flexible management of heat consumption

The project explores new ways of utilizing building management systems (BMS) to support a more flexible and stable heat supply.

Through analyses and pilot tests, the BMS4Flexumers project develops new technical and operational solutions that can enable a more efficient and robust heat supply in both Denmark and Norway.

We aim to influence the market for digital solutions that integrate data from BMS, district heating systems, and weather forecasts, while monitoring indoor climate. The project is working on a shared data model for exchanging both energy supply data and building data in a standardized way across borders and BMS systems.

The goal is to contribute to a secure, sustainable, and affordable district heating supply, as well as operational heating savings in buildings through scalable solutions across cities and countries.

Building Management Systems (BMS)

Building Management Systems (BMS) are systems, managing not only heating but also ventilation and other installations such as lighting.

A “flexumer” in the context of this project is a building supplied by district heating that can shift its heat demand by leveraging the building’s thermal mass as a battery, which can be activated via agreed signals from the district heating network. Previous pilot tests with flexumers show that wider implementation could significantly contribute to supply security and smooth out costly peak loads, which are often based on fossil production. At the same time, tests with weather forecast-based heating control have documented average savings of 5% for building owners.

Copenhagen Municipality’s Role

Copenhagen Solutions Lab (CSL) and the energy team in Climate and Urban Development lead the project, drawing on experience from previous flexibility projects together with Copenhagen Properties (KEJD).

KEJD tests flexible heat management in municipal buildings and contributes both practical knowledge and strategic insight.

The project supports the realization of Copenhagen Municipality's Energy Strategy 2035, where energy-efficient building operation, heat flexibility, and low-temperature district heating are central themes.

The broader partnerships across municipalities in both Denmark and Norway make it possible to test different solutions in parallel under varying conditions. The ambition is to create scalable models and knowledge that can be disseminated to other cities and countries.

Project master data

Partners

  • Denmark: HOFOR, Høje-Tåstrup Municipality, Gladsaxe Municipality, and Center Denmark
  • Norway: Oslo Municipality and Hafslund Celsius
  • Lead Partner: City of Copenhagen

Duration

  • September 2025 – August 2028.

Budget

  • 2,779,869 Euro
  • Granted EU funds: 1,204,032 Euro
  • Funds for Norway: 386,574 Euro

Budget for the City of Copenhagen

  • 539,736 Euro
  • Granted EU funds: 323,840 Euro