Solar current for the grid © Siemens Stiftung 2018 CC BY-SA 4.0 international

Solar current for the grid

Bild

Schematic diagram:
Direct current from photovoltaic plants must be converted into alternating current for feeding into the grid. The steps for adapting electric power from a private plant and from a solar power plant (“solar park") are compared here.

Englisch, Spanisch, Deutsch
Bild (182,1 kByte)
26.10.2018
The diagram compares two possible ways of generating power for the grid by means of photovoltaics: decentralized use in private households and centralized use in a solar park. In both cases the electric current must be converted into alternating current for feeding into the public grid by using a power inverter. Thanks to modern high-power electronics is it also possible to carry out almost loss-free conversion into medium and high voltages for the 36- and 110-kV network in large solar parks as well.
Incidentally: A solar panel has a power output of 30 – 350 Wp (Watt-peak = output with optimum solar irradiation).
Illustration
Technology
Grade 7 to 9; Grade 10 to 13
Middle/high school; Vocational training
Chart; Ecology; Energy; Energy supply; Environment (general); Environmental protection; Power generation; Power plant; Renewable energy; Solar energy; Solar technology
Siemens Stiftung Media Portal
MediaHouse GmbH using material from: Russell Neches - http://www.flickr.com/photos/rneches/2541181118/, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=28001643 (Power inverter; license: CC BY-SA 2.0), edited by Siemens Stiftung
© Siemens Stiftung 2018
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