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Manual panel allocation

Manually allocating panels is slightly different depending on whether the panels are optimised or not. All panels connected to an input must be within a certain pitch and orientation threshold and panels incompatible with the selected string will not be selectable. In this case the panels may need to be optimised. 

Manual panel allocation

Without optimisers 

  1. Select inverter input and the roof you'd like to allocate from the lists on the left.
  2. Click or drag over panels to allocate them to an inverter input. 
  3. Go to the next inverter input and repeat. 
  4. Once all inverter inputs have the correct number of panels, all inputs will be in green and a tick will show at the top. Below all your inverters and roofs, you can then click next to continue with the performance task.

With optimised systems 

When you come to allocating the panels the steps are largely similar to non-optimised systems: 

  1. Select inverter input and the roof you'd like to allocate from the lists on the left.
  2. Use the Add group + option to sub-divide the input into shading groups and then select the roof you want to allocate panels to. 
  3. Click or drag over panels to allocate them to an inverter input or shading group.
  4. Go to the next inverter input or shading group and repeat. 
  5. Once all inverter inputs have the correct number of panels, all inputs will be in green and a tick will show at the top. Below all your inverters and roofs, you can then click next to continue with the performance task.

Tip: You do not need to put each individual panel into a shading group. To best model the output of the system, group panels that will get similar levels of shade. Easy PV will also require that you use shading groups for panels that are on different facing roofs but on the same string. 

❓ Why has the generation not changed after adding optimisers?

Adding optimisers in the inverter task will not automatically change the generation. The generation is a product of the kWp of the inverter, the kk value (which itself is based on the pitch, orientation and location of the panels) and the shading factor.

If panels remain grouped the same, their shading factors and kk value will not change. With optimisers, you can put panels in separate shading groups. This allows Easy PV to factor in differences in the kk value and shading factor for the panels in each group on a single string. Without shading groups the generation will not change because the kk value and shading factor will be the same on the whole string, as it would be without optimsers. 

Other options

  • Use the Screenshot from 2025-02-11 11-29-13.png icon to reset the allocation on the inverter or individual inverter inputs. 

  • Below where it says Next, you also have the option to use auto-stringing. This will not work for systems that require shading groups. 

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