Photovoltaic island system

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Example: parking ticket machine

Photovoltaic island systems are a form of grid-independent island systems as photovoltaic systems . They are then used where a power grid connection is not appropriate or not possible, i.e. if the costs for a power connection would be comparatively uneconomical or a grid connection would not be feasible.

A distinction is made between mobile and stationary systems. Usually, a photovoltaic system is supplemented with a power storage device, such as an accumulator , in order to be able to bridge times without sunshine or possibly a capacitor circuit for voltage stabilization . In order to be able to guarantee a sufficient supply at all times, the systems must be dimensioned after the winter month with the least amount of solar radiation. Sunless times of 3 to 6 days should be taken into account.

In so-called hybrid systems, they are combined with at least one other type of energy supply, such as in connection with a diesel generator. With hybrid systems, seasonal or weather-related fluctuations can be more easily compensated.

Examples of application areas
  • Stationary, off-grid systems
    • in areas without a power grid, such as mountain huts
    • Measuring stations
    • Parking ticket machines
    • Emergency telephones
  • Mobile systems
    • Satellites
    • Boats
    • calculator
    • solar wristwatches
  • mobile and at times with mains connection
    • RVs
    • Solar mobiles

literature

  • Island system (operation). In: H. Weik: Expert Praxislexikon: Solar energy and solar technologies , 2nd revised edition from 2006, expert Verlag, ISBN 978-3-8169-2538-5 , p. 143
  • P. Brückmann: Autonome Stromversorgungen , Ökobuch, 4th improved edition from 2015, ISBN 978-3-936896-28-2
  • Chapter 5 Dimensioning of stand-alone PV systems. In: Photovoltaik Engineering: Handbook for planning, development and application , VDI book, Springer-Vieweg, 4th edition from 2015, ISBN 978-3-662-48639-9 , pp. 133–176
  • Chapter 5.3. Design of island systems. In: V. Wesslak, S. Voswinckel: Photovoltaics: How the sun becomes electricity , ISBN 978-3-662-48905-5 , pp. 97-103
  • Chapter 6.2.3. Off-grid systems. In: Kaltschmitt, Streicher, Wiese (ed.): Renewable energies: System technology, economic efficiency, environmental aspects , Springer-Vieweg, 5th edition from 2014 (corrected reprint), ISBN 978-3-642-03248-6 , p. 417– 423
  • Chapter 8.3. Dimensioning of stand-alone PV systems with batteries. In: H. Häberlein: Photovoltaics: Electricity from sunlight for integrated networks and stand-alone systems, electrosuisse and VDE-Verlag, pp. 530–547
  • Chapter 8.5. Island systems. In: Photovoltaics: Textbook on Basics, Technology and Practice , 3rd revised edition, Munich 2015, ISBN 978-3-446-44232-0 , pp. 254-262

Web links

Individual evidence

  1. ↑ Chapter 4.4.4. Photovoltaic island systems. In: Viktor Wesselak , Thomas Schabbach , Thomas Link, Joachim Fischer: Handbuch Regenerative Energietechnik , 3rd updated and expanded edition, Berlin / Heidelberg 2017, ISBN 978-3-662-53072-6
  2. ↑ a b V. Wesslak, S. Voswinckel: Photovoltaics: How the sun becomes electricity , ISBN 978-3-662-48905-5 , p. 98