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Panels

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    #21
    I've got some lovely wooden ones in the hall way.
    Make Mercia Great Again!

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      #22
      that sounds delightful

      Milan.

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        #23
        Originally posted by milanbenes View Post
        you are indeed correct, the expected total output is about 10kw

        :-)

        Milan.
        Which in reality in the UK will work out at about 1kW over the year (10% of name plate capacity at our latitude)

        (Time to post after a long hiatus, as about to hit the bench )

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          #24
          Originally posted by secwombat View Post

          Which in reality in the UK will work out at about 1kW over the year (10% of name plate capacity at our latitude)

          (Time to post after a long hiatus, as about to hit the bench )

          so in the uk you have to have ten times as many panels as everyone on the mainland ?

          good luck with the contract hunting

          Milan.

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            #25
            Originally posted by secwombat View Post

            Which in reality in the UK will work out at about 1kW over the year (10% of name plate capacity at our latitude)

            (Time to post after a long hiatus, as about to hit the bench )
            My array is rated at 3.6kW and I've had up to 3.8kW / year and that's in North Yorkshire.

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              #26
              I think you must have double the panels you think you have (at the very least)

              Half of the day is dark, when you definitely won't be getting any power !

              Comment


                #27
                Originally posted by secwombat View Post
                I think you must have double the panels you think you have (at the very least)

                Half of the day is dark, when you definitely won't be getting any power !
                Can you tell us your source for your figures of 1/10th, etc, because it's not indicative of the results of those who have panels.

                Although, I notice that you went from 10% to 50% in the space of 2 posts, so maybe you'll be closer to the mark in a few posts time.

                Just been checking... a panel rated 400W will produce about 340kWh per year in the UK. Which would mean 10 panels would produce enough electricity for the average house in the UK, if you have a means to store it for night time use, etc.
                …Maybe we ain’t that young anymore

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                  #28
                  Solar power in the United Kingdom - Wikipedia is a start, although if you prefer official figures PV_Live – Sheffield Solar, which monitors the real output across the country. All time peak - in the middle of summer, of 18GW of theorectical output, had a max output of 12GW. December / January are minimal.

                  Another source UK: load factor of solar PV 2023 | Statista

                  The 50% figure I quoted was simply that tazdevil was quoting 3.8kW (kWh in reality) as a yearly average from a 3.6kW array - I don't actually understand that figure - unless it's actually 3.8MWh ?

                  Taking the 400W example, generating 340kWh per year, that is also approaching 10%, if you consider that 400W = 9.6kWh per day - 3,504kWh per year.

                  Personal calculations for installation have given questionable returns on investment - if you are eco minded, it's likely better to have an eco-friendly power tariff.

                  (edit - to correct my maths)
                  Last edited by secwombat; 29 March 2025, 12:59.

                  Comment


                    #29
                    Originally posted by secwombat View Post
                    Solar power in the United Kingdom - Wikipedia is a start, although if you prefer official figures PV_Live – Sheffield Solar, which monitors the real output across the country. All time peak - in the middle of summer, of 18GW of theorectical output, had a max output of 12GW. December / January are minimal.

                    Another source UK: load factor of solar PV 2023 | Statista

                    The 50% figure I quoted was simply that tazdevil was quoting 3.8kW (kWh in reality) as a yearly average from a 3.6kW array - I don't actually understand that figure - unless it's actually 3.8MWh ?

                    Taking the 400W example, generating 340kWh per year, that is also approaching 10%, if you consider that 400W = 9.6kWh per day - 3,504kWh per year.

                    Personal calculations for installation have given questionable returns on investment - if you are eco minded, it's likely better to have an eco-friendly power tariff.

                    (edit - to correct my maths)
                    So what you’re saying is, you calculate based on 24 hours of generation per day, when most users are happy knowing that 10 panels is enough to power your house.

                    You provide links to UK solar generation, when this is about domestic.
                    You say the peak UK output is theoretically 18GW but the maximum recorded was 12GW. Now I’m no mathematical genius like you, but 12 is not one tenth of 18.

                    It’s like you’re arguing that you have numbers that “prove” nothing solar would ever work, and then you get them wrong.
                    …Maybe we ain’t that young anymore

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                      #30
                      maybe he gets his info from the daily fail?

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