282
P. Heck
energy demand of 3700 MWh are completely supplied by renewable energies. With
a new 99 kWp solar carport, a 100 kWh battery storage system, and five charging
points for ten IfaS-owned electric cars, the campus is also progressively tackling the
transport issue, which is still largely based on fossil energy (ECB 2019).
In the repurposed (and refurbished) buildings, a computer-controlled building
automation system controls the natural lighting—maximised by daylight guidance
systems and skylights—and the artificial lighting as well as the ventilation, heating
and cooling of the buildings by employing motion detectors, luminosity sensors and
CO 2 sensors. New buildings, such as the ones for student housing and the communications centre, have been built according to passive-house and/or energy-plus standards. The combination of the highest insulation and airtightness standards together
with a roof-mounted PV system ensures that these buildings produce more energy
than they consume. Heat exchangers for the recovery of waste heat in the used air
coupled with geothermal preheating and cooling systems complete ECB’s innovative
HVAC system.
8
The overall rational use of energy has been extended to other emerging areas
such as street and building lighting. While various LED-based street illumination
prototypes had already been in use and researched for many years, recently an entire
street was retrofitted with state-of-the-art, highly efficient LED street lights, including
a demonstration and performance control unit.
Aside from showcasing CE land use by converting an abandoned military complex
into a high-tech university site, ECB also demonstrates aspects of the CE through
sustainable landscape management strategies by developing biotopes based on separately collected rainwater. The ZE concept of ECB is extended to biotopes and biodiversity management, creating and maintaining protected areas and greened rooftops.
Rainwater is collected on retention surfaces and redirected into natural water bodies
or allowed to be channelled towards the aquifer. Part of the rainwater is collected,
after mechanical purification, in two tanks and used for various greywater applications such as toilet flushing, irrigation and even as a coolant for an adsorption cooling
system. The present system already avoids the discharge of rainwater into the sewer
system. Nevertheless, modernisation of the wastewater infrastructure is currently
underway, including water use minimisation strategies by installing vacuum toilets.
The reduction of wastewater by separation of urine and brown water in one student
dormitory is ongoing but not yet finished. In case of successful implementation,
this system will be implemented to all dormitories on campus. With the complete
installation of waterless urinals, the first step towards efficient water and nutrient
management has already been taken.
8 https://wissenszentrum-energie.ludwigsburg.de/,Lde/start/Bauen_Sanieren/gebaeudeenergiesta
ndards.html, https://www.umwelt-campus.de/fileadmin/Umwelt-Campus/Oeffentlichkeit-sarbeit/
Tech-Broschuere/2016_05_04_Broschuere-GrueneTechnologien-am-Campus_klein.pdf.
P. Heck
energy demand of 3700 MWh are completely supplied by renewable energies. With
a new 99 kWp solar carport, a 100 kWh battery storage system, and five charging
points for ten IfaS-owned electric cars, the campus is also progressively tackling the
transport issue, which is still largely based on fossil energy (ECB 2019).
In the repurposed (and refurbished) buildings, a computer-controlled building
automation system controls the natural lighting—maximised by daylight guidance
systems and skylights—and the artificial lighting as well as the ventilation, heating
and cooling of the buildings by employing motion detectors, luminosity sensors and
CO 2 sensors. New buildings, such as the ones for student housing and the communications centre, have been built according to passive-house and/or energy-plus standards. The combination of the highest insulation and airtightness standards together
with a roof-mounted PV system ensures that these buildings produce more energy
than they consume. Heat exchangers for the recovery of waste heat in the used air
coupled with geothermal preheating and cooling systems complete ECB’s innovative
HVAC system.
8
The overall rational use of energy has been extended to other emerging areas
such as street and building lighting. While various LED-based street illumination
prototypes had already been in use and researched for many years, recently an entire
street was retrofitted with state-of-the-art, highly efficient LED street lights, including
a demonstration and performance control unit.
Aside from showcasing CE land use by converting an abandoned military complex
into a high-tech university site, ECB also demonstrates aspects of the CE through
sustainable landscape management strategies by developing biotopes based on separately collected rainwater. The ZE concept of ECB is extended to biotopes and biodiversity management, creating and maintaining protected areas and greened rooftops.
Rainwater is collected on retention surfaces and redirected into natural water bodies
or allowed to be channelled towards the aquifer. Part of the rainwater is collected,
after mechanical purification, in two tanks and used for various greywater applications such as toilet flushing, irrigation and even as a coolant for an adsorption cooling
system. The present system already avoids the discharge of rainwater into the sewer
system. Nevertheless, modernisation of the wastewater infrastructure is currently
underway, including water use minimisation strategies by installing vacuum toilets.
The reduction of wastewater by separation of urine and brown water in one student
dormitory is ongoing but not yet finished. In case of successful implementation,
this system will be implemented to all dormitories on campus. With the complete
installation of waterless urinals, the first step towards efficient water and nutrient
management has already been taken.
8 https://wissenszentrum-energie.ludwigsburg.de/,Lde/start/Bauen_Sanieren/gebaeudeenergiesta
ndards.html, https://www.umwelt-campus.de/fileadmin/Umwelt-Campus/Oeffentlichkeit-sarbeit/
Tech-Broschuere/2016_05_04_Broschuere-GrueneTechnologien-am-Campus_klein.pdf.