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Solar Energy
Installers & Partners


2016-09-30 / Austria
Efficient energy management leads to free mobility


Size of installation
5 kWp
Purpose, system type
Roof-top installation
Storage unit
1 Fronius Solar Battery 7.5
1 Fronius Symo Hybrid 5.0-3-S
Initial installation: July 2013
Upgrade with the Fronius Energy Package: January 2015
Annual yield 4,600 kWh
Special feature
Loxone Home Automation System.
One electric moped and one electric motorbike are powered with PV electricity

More information

“Not having to pay a Cent when I go to the petrol station is certainly rather handy,” says the 16 year old daughter of system owner Manfred Wittmann. “Putting petrol into their mopeds takes up a large part of my friends‘ pocket money. Not only can I fuel up for free, but my moped doesn‘t generate any harmful emissions.” Anja uses the power generated by the roof-mounted PV system to keep her electric moped fully charged. 

“We have had a 5 kWp PV system since July 2013. Now we have added a storage solution to make more efficient use of the PV electricity we generate. In doing so we have increased our self-consumption rate from a yearly average of 30% to 70%. A good proportion of the energy generated is used to power our electric bikes, which run almost exclusively on solar power.” explains Manfred Wittmann.

The energy management processes are controlled by a Loxone Miniserver. In combination with the PV system, several consumers in the household are intelligently managed and the level of self-consumption is maximised. During summer the family can cover up to 90% of their electricity needs from their own PV system.

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