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  • 7/28/2019 FIS Pressemeldung E

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    Press Contact Investor Relations Contact Solutronic AG

    Stefanie Hempel Markus Laue Kferstrae 18

    T: +49 (0) 174 30 105 30 T: +49 (0) 7024 96 128 99 73257 Kngen, Germany

    [email protected] [email protected] www.solutronic.de

    SOLPLUS FEED-IN Solution

    Grid feed-in control dependent on in-house consumption

    Control of a photovoltaic installation's power output

    Grid feed-in dependent on in-house power requirements and base load

    Power output adjustment in line with legislation

    Kngen, 21 June 2012

    The specialist solar trade fair, Intersolar, which closed its doors last week, saw Solutronic AG

    launch its latest innovation, the SOLPLUS FEED-IN Solution (FIS). FIS controls the inverters'

    power output depending on the level of local (in-house) consumption and the grid load. It is

    installed in-between the SOLPLUS inverter(s) and the grid connection and regulates the

    amount of energy that is fed into the grid in line with the specifications.

    FIS is capable of feeding in a predefined maximum quantity of electricity while taking into

    account appliances in use in the building.

    This means, for instance, if 70% of the maximum DC output of the PV system is allowed to

    be fed into the grid and a refrigerator, lights and the cooker in the house are all on, the

    amount of electricity required by these appliances is drawn from the electricity generated

    the rest is fed into the grid. If no appliances are running, the 70% maximum permitted is fed

    in.

    If no power is allowed to be fed into the grid, FIS can limit the amount of energy generated to

    the maximum level of electricity consumed in-house. By doing so, FIS guarantees

    compliance with the legally limited infeed level at all times, but dependent on the localappliances. FIS measures and controls in 3-phase mode if PV inverters are connected to all

    3 phases. In this case, each of the phases is controlled and limited individually.

    FIS also allows the utility company to reduce the power infeed level remotely by means of

    ripple-control signals.

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    Press Contact Investor Relations Contact Solutronic AG

    Stefanie Hempel Markus Laue Kferstrae 18

    T: +49 (0) 174 30 105 30 T: +49 (0) 7024 96 128 99 73257 Kngen, Germany

    [email protected] [email protected] www.solutronic.de

    The thinking behind the development of FIS takes account of the growing number of

    photovoltaic installations being built and the strain this is putting on the existing power grids.

    This is leading governments to introduce legislation prescribing the integration of an infeed

    management functionality in new PV systems and promoting the retrofitting of such a

    functionality in existing systems. In some countries even, the power supply system is so

    overloaded that the operators of new installations are no longer allowed to feed the electricity

    they generate into the national grid.

    With SOLPLUS FIS, it's now possible to use photovoltaics solely to cover one's own basic

    power requirements without having to obtain the permission of the local utility company. This

    also means the PV installation doesn't have to be approved or licensed for grid connection.

    The advantage here is that the cheap and easily calculable solar power can be used to cover

    one's basic power requirements. Above all, this system is particularly interesting for larger

    buildings with medium-range power requirements, such as hotels. And as the price of

    modules falls even further, it will also become more and more interesting for family homes

    and for customers who want to reduce their dependency on the power utilities.

    More information can be found at www.solutronic.de

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