TOOL FOR THE USE IN EARLY PHASES OF REFURBISHMENT AT DISTRICT LEVEL
MODER has developed an extension to an existing tool District Energy Concept Advisor (D-ECA).
The computer tool D-ECA was developed in 2012/2013 within the German research initiative EnEff:Stadt and internationalised in the IEA EBC Annex 51. The tool enables urban decision makers and planners of energy efficient districts to assess the energy performance of a city quarter already in the first planning stages when detailed information is not available. D-EAC works with archetype buildings that are combined to a city quarter, and that can be quickly adapted to the real situation. Various energy planning variants can be compared to the current situation in the city quarter. The existing tool is available on www.district-eca.com.
MODER has developed preliminary versions with extended functionalities.
Instead of one international D-ECA, the MODER D-ECA is available in 4 national versions. Additional national tool versions with archetype buildings, user profiles and climate data have been developed for Finland, Slovenia and Latvia.
Additional German archetype buildings have been developed and added (Nursery home, university buildings, commercial building, business hotel, store house).
New technologies have been added
- Night-storage heaters
- Local district heating: variants of collectors / heat pumps / storage systems (choice between different steps)
- Electrical storages adapted to new DIN V 18599, centralised electrical storages
- Exhaust air heat pump
- Fresh water stations
- Mechanical ventilation system with 85% heat recovery
- User dependent control system for ventilation systems
- Lighting control systems: daylight / occupancy
- Partly shaded solar systems
- PV system: ventilated or not
- Lighting: mix of LED and fluorescent lamps
- DHW: choice of with and without circulation
Cost information has been added.
MODER D-ECA is a suitable tool for making fast and easy scenario analyses at the very beginning of the project. As an easy to use tool not only energy specialists but also other interested people can use the tool for the investigation of different refurbishment strategies and their effect on the future energy consumption. Default values and pre-configurations of services systems further support this. Besides the calculation of the final and primary energy and the CO2 emissions, the tool presents the costs of the different variants.
MODER D-ECA calculates based on a mean monthly balancing method. Therefore it does not support detailed analyses such as hourly consumption and production data. Detailed analyses of energy grids, pipelines, equipment, production and consumption mismatch analysis are outside the scope of MODER D-ECA.
EXPANDING THE SCOPE OF GPR REAL ESTATE
GPR Building is a Dutch tool that supports the sustainability assessment of single buildings. It will be a part of GPR Real Estate that shows the building performance scores on geographical basis, both for individual buildings and as district average scores. GPR Real Estate links with a public database, which supplies information about building characteristics at address level. In principle, it can also link to other public sources, either in the form of GIS datasets, or data on address level (e.g. historic energy consumption data). GPR Real Estate has recently been developed into a prototype tool.
Another existing instrument in the Netherlands is the Uniform Benchmark Built Environment (UMGO). This tool is now mainly used by energy experts to assess the viability of different energy supply options for a collection of buildings, i.e. energy supply at district level. UMGO calculates primary energy demand and CO2 emissions at district level for specific choices for the energy supply system but it does not support the use of scenarios.
MODER will expand the scope of GPR Real Estate by including energy supply options on the basis of the UMGO model and by adding the time and financial aspects. In this way we will obtain a geographically-based visualisation tool which can display options for energetic renovation together with energy supply scenarios, both on building and on district level. Thus, the new tool will greatly facilitate stakeholders involvement in the discussions about the energy transition at district level. Because it builds on two tools which are already widely used in the Netherlands, we expect that there will be many potential users among city planners, social housing associations and other building owners, as well as among local interest groups that are involved in energy and sustainability issues.
MODER VISUALIZATION FOR STAKEHOLDERS
Energy performance visualisation at district level
MODER develops new visualisation functionalities to support non-technical stakeholders to understand the complex energy system behaviour.
Districts contain a lot of information of buildings and energy systems. Energy models can be complex and there may be interactions between systems. Large share of renewables makes hourly fluctuations to the system.
Currently the models are built up manually. It requires a lot of work; it is time consuming and too slow for current business practices.
MODER project’s approach is to use Apros simulator to handle the complexity, minimize the manual work with the help of CityGML integration, and do visualisation to ease the understanding of complex results.
- Cesium Sancastle environment as a visualisation
- APROS District system simulation tool as a data provider and for modelling technology packages and interactions between the buildings and distribution networks and for assessment of the impacts. Apros is a multifunctional software for modelling and dynamic simulation of processes, different power plants and district energy systems.
- CityGML for initial modelling of the district. CityGML is
a data exchange format that enables spatial data
modeling, saving, data transfer and updating.
Horizon 2020 H2020-EeB-2015, EeB-05-2015, INNOVATION ACTION