# Other Modelling Adjustment

This adjustment (denoted \(\Delta_{\text{other,mtype}}\) ) can be entered by the user as a "catch-all" adjustment to the power produced by a specific type of module for reasons not covered by other more specific effects, and can be entered by the user for each type of module included in the SolarFarmer workbook.

As \(\Delta_{\text{other,mtype}}\) is constant, the instantaneous and time-averaged values of this effect are all simply equal to \(\Delta_{\text{other,mtype}}\), unless the array consists of a mixture of module types with different adjustments, and the proportion of the total energy generated by modules of each type vary with time.

Assuming the plant array is composed entirely of a single type of module, plant array power after the adjustment is simply:

$$P_{Parray,npmc,other}\left( array,t \right) = \left( 1 + \frac{\Delta_{other,mtype}}{100%} \right) \bullet P_{Parray,npmc,lid}(array,t)$$

For plant arrays consisting of a mixture of module types with differing module quality effects:

$$P_{Parray,\ npmc,other}\left( t \right) = \sum_{j = 1}^{N_{\text{submodules}}}{P_{submod,npmc,other}\left( t \right)}$$

Where

$$P_{submod,npmc,other}\left( t \right) = \left( 1 + \frac{\Delta_{other,mtype}}{100%} \right) \bullet P_{submod,npmc,lid}\left( t \right)$$

The combined adjustment at time *t* is then:

$$\Delta_{\text{other}}\left( t \right) = \left( \frac{P_{Parray,npmc,other}\left( t \right)}{P_{Parray,npmc,lid}\left( t \right)} - 1 \right) \bullet 100%$$

Powers can be averaged over desired periods to get monthly or annual adjustments. As for other effects, it will be necessary to de-season if the input data is not a single complete year.

To consider this adjustment alongside other conversion effects in the mismatch calculation, an adjustment to the current from each submodule is calculated as:

$$\eta_{submod,other} = \left( 1 + \frac{\Delta_{other,mtype}}{100%} \right)$$