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20 panel commercial use payback
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<blockquote data-quote="Paul2129" data-source="post: 450564" data-attributes="member: 29107"><p>Well, we have a lot of roof space, half of the panels are on the East facing pitched roof, and roughly half are on the flat roof. I think (I do have the report somewhere) that the shade was quoted or calculated at 25% for the flat roof or perhaps the panels quoted at 80% of their potential ?. I have the report but it's a little complicated. This flat roof is pretty huge, but surrounded on east, west, and worstly south sides with pitched roofs from the sun. At 09:30 on the day of the quote, the entire roof was sat in the shade... the electrician (who would appear honest) said that it would be receiving a more direct sum for the majority of the rest of the day, after the sun moves away from the east facing panels. Saying that this spreads the panels out for usage across all hours of the day..... there are t many more options here</p><p></p><p>im wondering if 'just' the east facing panels would be much cheaper / worth it / big enough to bother with ?</p><p></p><p>there were options to have two more panels on each of the flat and pitched roofs, so if I were to not bother with the flat roof, I could at least at two extra panels to the side ?</p><p></p><p>edit : just checked, this original quote has 12 panels on the East facing pitched roof, and 8 panels on the flat roof</p><p></p><p>.edit : quote says PV modules are 270w</p></blockquote><p></p>
[QUOTE="Paul2129, post: 450564, member: 29107"] Well, we have a lot of roof space, half of the panels are on the East facing pitched roof, and roughly half are on the flat roof. I think (I do have the report somewhere) that the shade was quoted or calculated at 25% for the flat roof or perhaps the panels quoted at 80% of their potential ?. I have the report but it's a little complicated. This flat roof is pretty huge, but surrounded on east, west, and worstly south sides with pitched roofs from the sun. At 09:30 on the day of the quote, the entire roof was sat in the shade... the electrician (who would appear honest) said that it would be receiving a more direct sum for the majority of the rest of the day, after the sun moves away from the east facing panels. Saying that this spreads the panels out for usage across all hours of the day..... there are t many more options here im wondering if 'just' the east facing panels would be much cheaper / worth it / big enough to bother with ? there were options to have two more panels on each of the flat and pitched roofs, so if I were to not bother with the flat roof, I could at least at two extra panels to the side ? edit : just checked, this original quote has 12 panels on the East facing pitched roof, and 8 panels on the flat roof .edit : quote says PV modules are 270w [/QUOTE]
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