Nominal power (photovoltaic)
Nominal power is the
The peak power is generally not reached under actual radiation conditions. In practice, actual conditions will allow for approximately 15-20% lower generation due to the considerable heating of the solar cells.[2] Moreover, in installations where electricity is converted to
Standard test conditions
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The nominal power of PV devices is measured under standard test conditions (STC), specified in standards such as IEC 61215, IEC 61646 and UL 1703. Specifically, the light intensity is 1000 W/m2, with a spectrum similar to
Units
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In the context of domestic PV installations, the
Conversion from DC to AC
Solar power need to be converted from
Most countries refer to installed nominal
In order to clarify whether the nominal power output (watt-peak, Wp) is in fact DC or already converted into AC, it is sometimes explicitly denoted as MWDC and MWAC or kWDC and kWAC. The converted WAC is also often written as "MW (AC)", "MWac" or "MWAC". Just as for Wp, these units are non
Power output in real conditions
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The output of
References
- ^ Die Verwirrung um das Watt-Peak, The confusion around watt-peak, 14 August 2009.
- ^ "What does kilowatt peak (kWp) actually mean?". Archived from the original on 12 June 2015. Retrieved 11 June 2015.
- ^ "What does kilowatt peak (kWp) actually mean?". solar-is-future.com. 2011. Archived from the original on 12 June 2015. Retrieved 11 June 2015.
- ISBN 92-822-2213-6, archived(PDF) from the original on 2021-06-04, retrieved 2021-12-16
- ^ "Global Market Outlook for Photovoltaics 2014-2018" (PDF). epia.org. EPIA - European Photovoltaic Industry Association. p. 15. Archived from the original (PDF) on 25 June 2014. Retrieved 12 June 2014.
- ^ "Snapshot of Global PV 1992-2014" (PDF). iea-pvps.org/index.php?id=32. International Energy Agency — Photovoltaic Power Systems Programme. 30 March 2015. p. 11. Archived from the original on 7 April 2015.
- ^ Gipe, Paul (20 November 2009). "Solar PV DC Conversion Factor for AC kW". Wind Works. Archived from the original on 15 September 2013. Retrieved 23 January 2020.