Black Beauty on the roof:
The building envelope is staggered in three levels, with the top level designed as
a "photovoltaic crystal". Elegant black solar modules have been integrated into the
façade and roof. It is thus a BIPV ("Building Integrated PV") project, designed
from the ground up as such.
PV and storage:
The architectural firm dieplanerei.at from Thalgau designed this special building.
The aim was to integrate the solar modules into the façade and roof as efficiently
as possible in order to generate as much electricity as possible. The PV energy
satisfies both the electricity and heating needs in the building. Electric vehicles
also charge the kilowatt-hours into their batteries. Balancing electricity
generation and consumption takes place through a large lithium-ion storage system.
421 Square meter black moduls:
The building concept was developed and erected in cooperation with MOON POWER. The
solar modules integrated into the facade and roof have a total output of 47.69 kWp.
The black modules from Ertex Solar are located on the entire roof and around the
entire top facade - including the northern facade areas. The solar modules occupy
an area of around 421 m².
Colored blind modules at the corners:
Blind modules of the same color were installed on the corner elements to ensure the
overall appearance of a "photovoltaic crystal". The conversion of direct current
and three-phase current is performed by two 17 kVA inverters from Solaredge. This
allows the building owner to monitor generation at the module level. The annual
electricity generation in the planning was around 40,000 kWh.
Almost 94% self-consumption:
Due to the location in the foothills of the Alps, an electricity generation of just
under 36,600 kWh was achieved in the first year. This results in a specific
electricity yield of 767 kWh per kWp - across all areas. The self-consumption quota
is 93.7% and the autarky quota achieves a value of 69.4%. The high value is
achieved by a storage system from VARTA. The storage system is 75 kWh in size and
has a charging and discharging capacity of 36 kW.
The PV system is part of an overall energy concept for this new
building:
- PV system Ertex/SolarEdge: 47.69 kWp
- Storage system Varta including emergency power supply: 36 kW / 75 kWh
- Heat pump deep drilling Hoval
- Heating rod Hoval heating: 7,5 kW
- Heating rod Hoval hot water: 8,5 kW
- 2x AC wallboxes: 22 kW (1x Tesla & 1x MOON POWER Wallbox Connect)
- Energy and load management system ASKI with integration of all above mentioned
consumers and generators.
The system is perfectly adjusted for high self-consumption use and energy
efficiency.
The entire system is modular, which ensures the recyclability and repairability of
the system. The substructure is made of steel and aluminum. All components are
bolted together. Nothing is welded or glued (no sandwich structures), which makes
everything dismountable.
We will be happy to advise you if you are also looking for an overall
energy concept!
