efficiency | Page 3

efficiency

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  1. SolarCity

    Differences in panels

    Can anybody please help me out with regards to the differences between panels and their potential yield. PV Sol does a great job of giving you figures based on which panel you use but I can't work out why some 180w panels give out one return and another 180w panel gives another figure. I...
  2. S

    yield and efficiency calcs

    Hi all I need a book or something online to help me spec my first system which i want to use for my MCS registration job. The installation will probably be on my own house. i'm looking at the Schott poly 220 modules and i'm confused whether i should be using the electrical data at STC or...
  3. S

    Luminous Efficiency

    Hi all - Very new to this site, wondering if someone could help me! "All lamps must have a luminous efficiency greater than 40 lumens per circuit" Can anyone help/explain the above statement? Thanks Adam

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