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NC-2009 EAc2:On-Site Renewable Energy

Probability distribution of annual PV production.

Hi, a solar PV consultant gave me an output of their simulation, in which show probability distribution diagram of Solar PV production. The peak is 79 MWh/year with Probability of 50 - P50 (we would have it 1 year out of every 2 year). P75 is 75 MWh, P90 is 73 MWh. Now, I don't know which production should I take for this credit. Can I use the peak production 79 MWh with P50. I highly appreciate any advice and comment.

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Tue, 11/17/2015 - 14:23

The projected production is typically based on an average weather file. Not sure how that would translate to probability as I have never seen this kind of projection. In general being more conservative is more easily accepted by the reviewer.

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