Hedebygadekarréen - Statens Byggeforskningsinstitut

Summery
The renovation of the Hedebygade Block
has now come to an end. From the
beginning of 1994, when residents formed
an ecology group in order to put focus on
the block, and to the finalisation of the
ecological demonstration and experimental
project, ten years were to pass. In the
spring of 2003 the renovation of the
courtyard was completed with the physical
renewal of the block. However, the project
was not finalised before the last automatic
reading of heating, electricity and water
consumption of the 150 flats of the block
was received at the beginning of 2004.
With this the hitherto largest ecological
and environmentally sound project in
Denmark was finalised.The total cost was
50 million euro. Of special interest, however,
was the governmental funding of 5 million
euro dedicated to the execution of the
Hedebygade Block as an ecological
demonstration and experiment project.
This report attempts to answer the questions
whether the experiment succeeded
and whether the demonstration value
achieved was commensurate with the 5
million euro invested.The answers are
subdivided into six answers that refer to
six different aspects of the overall project.
In this way it is assessed if the project has
been a success concerning:
1. Coherence between vision and
technical results
2. Environmental achievements and
resource gains
3. Architecture and urban esthetical
adjustment
4. Total economy
5. Residents support
6. Commercial perspective
Vision and result
Many different technical solutions were
tested, among these several innovative
ones.The facade solutions were the most
convincing: The sun walls with solar cells
(photovoltaics) and heat exchanger, and
the energy saving facades demonstrated in
the subprojects 5, 6, 7 and 8. Subprojects
6, 8 and 11 are examples of the successful
integration of photovoltaics into the facade.
Solar cells make a visionary impression,
although photovoltaic panels of that size
and of that location provided only a small
supplement to the total electricity
consumption.A prism with light-shaft effect
in Subproject 1 had from the very beginning
been the most visionary and hightech and
attained high demonstration value as well.
However, its price must be lower if this
kind of daylight utilization is to become
widespread.
61