Black Beauty on the roof:
The building envelope is staggered across 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. There is enough
power to charge the batteries of electric vehicles too. A large lithium-ion storage
system balances electricity generation and consumption.
421 Square meter black modules:
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 cover 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 dummy modules at the corners:
Dummy 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
anticipated annual electricity generation 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
lies at 93.7% and the self-sufficiency achieved is 69.4%. The high value
is achieved thanks to 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
- Bore hole heat pump - 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)
- ASKI energy and load management system 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 are happy to advise you if you are also looking for an overall
energy concept!
