Inhaltsverzeichnis
Solarenergie Urban - Analysis and evaluation of the economic, energetic and architectural quality of urban solar energy buildings
This project develops energetic and economic optimised planning criteria for multi storey residential buildings for the integration of renewable energy systems in the building shell. The field of new construction and refurbishment will be investigated.
Titel und Synopse
Dieses Projekt entwickelt energetisch und ökonomisch optimierte Planungsgrundlagen für den mehrgeschoßigen Wohnbau zur Integration von erneuerbaren Energiesystemen in die Gebäudehülle. Es werden die Bereiche Neubau und Sanierung bearbeitet.
Project description / tasks
Status
ongoing
Summary
Starting point / motivation
Since a few years, zero-carbon-emission buildings and plus-energy buildings have been under discussion in Austria, due to the fact, that the building sector is one of the major CO2-emittents on the one hand, and on the other hand consumes a large share of soil which cannot be used anymore to produce biomass from agriculture for energy use. Therefore, it is the requirement to plan and construct buildings in the most energy efficient way, in order to keep energy consumption during utilisation as low as possible, and at the same time to use the building shell for energy production in an optimal way.
Currently there is neither a widely accepted definition of terms nor are there basic principles and strategies for the optimised planning and construction of plus-energy buildings. In Austria, a plus-energy building is usually understood as a passive house with a photovoltaic system.
Contents and goals
The following questions and their answers are content of the project:
- Is a plus-energy building is automatically defined by solar electricity production or is it also appropriate to take into account solar thermal energy surplus production?
- For example, is it possible to refer to a multi residential building with more than 100% coverage from solar thermal energy as a plus-energy building? Could it even be the most efficient solution to use all available area of the building envelope for solar thermal energy production instead of implementing photovoltaic panels?
Methods of treatment
- energetic and building technique analysis and assessment of the usability and the possibility to integrate solar energy sources to urban multi storey residential buildings.
- energetic analysis of urban ancillary conditions (shading analysis, building envelope availability, seasonal solar coverage, etc.)
- targeted preparation of planning aids for the early planning phase of Zero-Carbon-Emission Buildings or plus energy buildings focussing on new construction and refurbishment of multi storey residential buildings.
- analysis of life cycle costs and income in relation to CO2-emissions and primary energy input.
The project builds on a strong interdisciplinary partnership of experts in architecture, construction business, economical and energy analysis, in order to approach the research task in a comprehensive way and to meet sustainability requirements.
Expected results / conclusions
- Basic principles for design to plan zero-carbon-emission buildings and plus-energy buildings, respectively, in the field of new construction and renovation of multi residential buildings
- Analysis of life cycle costs and revenue from surplus energy production in relation to CO2-emissions und primary energy consumption
- Input for further development of social housing subsidy schemes based on CO2-balances and CO2-indicators respectively
- Suggestion how to revise the Austrian Standard ÖNORM B 1801 "Kosten im Hoch- und Tiefbau" (costs in structural and civil engineering)
- Suggestion how to standardise the terms zero-carbon-emission building and plus-energy building
- Input for the technical development of products to be integrated into the building shell in order to reduce life cycle costs and to improve the primary energy balance and the CO2-balance of buildings
Project partners
Project management
DI Maria Amtmann
Österreichische Energieagentur - Austrian Energy Agency
Project or cooperation partner
- AIT - Austrian Institute of Technology
- Technische Universität Graz - Institut für Wärmetechnik
- Technische Universität Graz - Institut für Gebäudelehre
- Dr. Ronald Mischek ZT GmbH
Contact address
Österreichische Energieagentur - Austrian Energy Agency
DI Maria Amtmann
Mariahilfer Straße 136, A-1150 Wien
Tel.: +43 (1) 5861524-193
Fax: +43 (1) 5861524-340
E-Mail: maria.amtmann@energyagency.at
