Gravelrash
New Member
Hi everyone
So, I am straight in with my first dumb question. I am having roofing works carried out right now, and so I have ordered 18 x Longi Solar 410w panels and mounting kit, which will be delivered today, and which my roofer has agreed to fit for me
UK based, and I am undecided what exactly I will do with the panels, whether to go for an off-grid setup, or do the DNO G99 thing properly. I figure have time to research and plan that out. I'm leaning towards the "kind-of off grid" layout discussed in this thread https://diysolarforum.com/threads/kind-of-off-grid-help-uk.72594/
However, whatever I do eventually, I do need to make a quick decision right now as to the wiring layout of my solar string(s). Once they are wired up, with tails leading in to accessible spaces inside the house, then I can worry about the details later
I think I am planning to go for a 9s 2p configuration. This will provide two strings, each operating at around 260v – 335v, up to 13amps per string
I have tried to illustrate my roof with panel layout below, showing my two intended in-series strings wiring in red
Are there any fundamental issues with this wiring layout? Is there a way to do it better? I am aware that there will be some fairly long cable runs to deal with, but given the 13+ meter length of my roof, I think that will be the case whatever I do at this stage
Thanks in advance
So, I am straight in with my first dumb question. I am having roofing works carried out right now, and so I have ordered 18 x Longi Solar 410w panels and mounting kit, which will be delivered today, and which my roofer has agreed to fit for me
UK based, and I am undecided what exactly I will do with the panels, whether to go for an off-grid setup, or do the DNO G99 thing properly. I figure have time to research and plan that out. I'm leaning towards the "kind-of off grid" layout discussed in this thread https://diysolarforum.com/threads/kind-of-off-grid-help-uk.72594/
However, whatever I do eventually, I do need to make a quick decision right now as to the wiring layout of my solar string(s). Once they are wired up, with tails leading in to accessible spaces inside the house, then I can worry about the details later
I think I am planning to go for a 9s 2p configuration. This will provide two strings, each operating at around 260v – 335v, up to 13amps per string
I have tried to illustrate my roof with panel layout below, showing my two intended in-series strings wiring in red
Are there any fundamental issues with this wiring layout? Is there a way to do it better? I am aware that there will be some fairly long cable runs to deal with, but given the 13+ meter length of my roof, I think that will be the case whatever I do at this stage
Thanks in advance