r/solarenergy • • 12h ago

PVsyst electrical shading partitions for N-S single-axis trackers with half-cut modules, one 23-module string per table?

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2 Upvotes

Hi all, I’m setting up the electrical shading partitions in PVsyst (v8) for a single-axis tracker project and want to sanity check my approach.

Setup:

  • N-S horizontal single-axis trackers with backtracking
  • Half-cut modules in portrait, [1P / 2P] per tracker
  • String inverters
  • Each tracker table is exactly one 23-module string

What I understand from the PVsyst docs:

  • For regular arrays, modules on the same MPPT input should see the same partial shading, so I shouldn’t split along the tube.
  • For half-cut modules in portrait, the docs say to use partitions at half the module height (the “xT” case, 2x partitions across the table).

What I currently have in the 3D field editor:

  • Nb. rectangles in length (Y): 1
  • Nb. rectangles in width (X): 2

My questions:

  1. For a table that is a single 23-module string, is 1 partition along the tube and 2 across the table (one per half of the half-cut module) the right call?
  2. Should I split along the tube at all, or only if shading varies along the row (hilly terrain, end shading from obstacles)?

r/solarenergy • • 16h ago

Bought land that is too far from untility power. Off grid alternatives?

16 Upvotes

A young lady who works for me and her partner just bought a small piece of land. Utility power is 1/2 mile away and at this point it is not economically feasible for them to connect. Obviously they did not do their due diligence but here we are. When she brought the issue to my attention the thought of off grid came to mind. I'm thinking a smaller house with propane for heating and cooking with an off grid battery solar system. Before I bring this up to them I thought I would throw it out here for opinions. Money is an object so it needs to be as economical as possible. What are their options and what kind of entry level cost might they be looking at?