//Public documents

Regional feasibility studies of new DH in consolidated urban environments, technical financial and administrative roadmaps

The methodology developed within RELaTED identifies interesting interactions between heat sources and high dense areas, but fails to encounter fully successful outcomes. Read more here (PDF) >> The main output of this study is the definition of a procedure for the identification of opportunities of waste heat reuse with a practical application based on real data in both Basque country region and Mazovia region. This document included: Geoprocessing of information on Basque country. Phase 1 of the regional study, with an energy and administrative planning of DH in consolidated urban environments. The main output from this task is the methodology to define roadmaps for the planning of new DH networks in existing urban areas. This methodology has been [...]

2022-04-07T12:47:21+00:00April 7th, 2022|Public documents|

Transition schemes for DH in operation

 The Guidelines of the task 2.6 will focus on energy planning and economy, Network topology, Scenarios for timeline and energy sources, necessary measures for implementation, project developments and operation and management. DOWNLOAD THE DOCUMENT HERE (PDF) >> One smaller generation plant with main network and subnetwork in Belgrade district heating network. In RELaTED Task 2.6 a set of guidelines were developed for how the low temperature concepts can be applied for operational high temperature district heating networks. This report (D2.6) is one of various RELaTED reports describing low temperature concepts from different perspectives. The report refers to other RELaTED reports when relevant. The guidelines of this report are in general terms, based on best practice as most DH [...]

2022-03-24T10:56:05+00:00March 24th, 2022|Public documents|

Interconnection schemes for producer installations

This report elucidates specific barriers and solutions for the use of distributed energy sources (DER) in ULT DH networks. Moreover, it will sketch solutions for producer connections to the network. The objective of this document is to investigate possible interconnection schemes for producer installations and to explore the control opportunities and strategies including local storage when relevant and with respect to the overall boundary conditions, pricing and taxes as well as regulation. DOWNLOAD DOCUMENT>> Example of BILST facade system. Source: IMAR singular metal solution. In RELaTED Task 2.3 the use of distributed energy sources and the possibilities for integration and control in district heating systems are presented along with legal and practical barriers and solutions as well as [...]

2022-03-10T14:22:10+00:00March 10th, 2022|Public documents|

The business case for ULTDH using the RELaTED concept – Residential & commercial customers, and heat producers

The use of ULTDH network in combination with CHP, reversible heat pumps for heating & cooling, solar systems, and waste heat increases the energy performance in every case. Photo by jiawei cui from Pexels The RELaTED project assessed the business case for ULTDH using a decentralized approach to heat production, i.e. heat can be collected from multiple points within the district heating (DH) network, not just one location. This assessment was applied to the DH customer case for residential and non-residential buildings, and heat producers (DH company). For DH customers, the use of building integrated solar panels, heat pumps, and triple function substations were applied to the DH networks of Belgrade, Serbia, and Tartu, Estonia. For Heat producers, [...]

2022-02-24T11:39:54+00:00February 24th, 2022|Public documents, Publications|

District heating cost modelling

The district heating (DH) cost modelling assessment addresses the long-term energy planning of DHs, considering the evolution of systems towards greater efficiency, lower distribution temperatures, greater shares of renewable energy and the incorporation of distributed renewables in the context of an increase of nearly zero energy efficient buildings (NZEBs). Photo: Magda Ehlers (Pexels). The cost modelling is one of the topics included in the report D4.6 (download report D4.6 here >>). The RELaTED project has addressed this issue in WP4 – Economic feasibility & business analysis. The report, D4.6, serves as a summary of the main findings for this WP as it relates to the profitable operation of the RELaTED DH networks. Heat production costs The assessment is [...]

2022-06-29T12:23:23+00:00February 17th, 2022|Public documents|

The desing of Triple Function Substations in combination with RELaTED technologies

Ultra-Low temperature district heating introduces multiple benefits at network level, as the reduction of heat losses and the improvement of heat generation efficiency. ULTDH also facilitates the integration of low temperatures renewable energy sources and waste heat into the district heating network. Renewable heat sources as solar thermal and heat pumps can be coupled to the district heating network and the buildings through specially designed district heating substations. Some images of the Microbooster and BILTST demonstration in Taastrup, Denmark. During the development of the RELaTED project, several Triple Function Substations (3FS) have been evaluated and designed. Those were investigated in different versions, connection schemes configurations and operating modes depending on the district heating characteristics, the building types and [...]

2021-02-18T12:59:29+00:00February 18th, 2021|Public documents|

Metering and billing of consumption in ultra-low temperature district heating systems

In general, metering of district heating consumption in ultra-low temperature district heating (ULT DH) systems is not different from traditional district heating. However, when electricity is used to boost DHW temperature, this share of the DHW production is no longer metered by the district heating company, or must be metered separately by an additional electricity meter. This information has been extracted from the section 5 of the document D.2.2. Interconnection schemes for consumer installations. DOWNLOAD THIS DOCUMENT HERE >> Figure 3: principle of metering in ULT DH systems with electric booster In this case, there might be different ways to bill the consumer. One option is that the consumer is just billed the district heating consumption with usual [...]

2020-06-01T16:56:21+00:00February 27th, 2020|Public documents, Publications|

Machine Learning as a solution tool for district heating

In recent years, Machine Learning has become one of the most used techniques when modelling relationships between different parameters. Inspired by the successful integration of Machine Learning in many other areas, it is beginning to draw attention in the district heating sector as well. The application of Machine Learning in the context of district heating has an obvious potential as a component of tomorrows heating networks. Machine learning (ML) is a fast-developing tool that allows you to handle large and complex systems with many parameters and data, with different desires for efficiency. It is a branch of artificial intelligence, and defined by Computer Scientist and machine learning pioneer Tom M. Mitchell in relation to his book Machine Learning (1997) [2] [...]

2020-02-05T11:01:34+00:00February 5th, 2020|Public documents, Publications|

Energy flexibility and District Heating Control

The activities carried out under the RELaTED project address the need for increased energy efficiency and new management strategies in relation to ULT DH. Installing smart meters allows for increased insight into the conditions of networks and installations and by the use of machine learning to utilize these data in new algorithms and tools. RELaTED report 2.4, which is part of a set of reports that define the system architecture of the RELaTED concept, describes new possibilities concerning measurement and control of ULT DH and other DH systems with high energy flexibility. RELaTED task 2.4 aims at developing a framework for advanced control procedures for managing and optimizing ULT DH networks based on energy consumers equipped with smart meters and [...]

2019-11-15T10:34:12+00:00October 2nd, 2019|Public documents, Publications|

Development schemes for new district heating developments

How can low temperature concepts be applied in new urban developments? The RELaTED Task 2.5 describes a set of guidelines that are, in general terms, based on best practices as most new urban development areas are different in relation to visions, DH network topology, temperature levels, buildings installations, tariff structure, management etc. […]

2019-06-20T13:48:49+00:00June 20th, 2019|Public documents, Publications|