How WegoWise Handles Solar and Electric Data
Solar is treated differently than other fuels in WegoWise. In most cases, it will appear as expected, such as in the dropdown menus throughout the application.
However, it is treated differently for the summary benchmarks and CO2 emissions graph. For these, solar production is added into the net electric usage from utility bill data.
If you are not tracking your solar production yet, you will still see a summary benchmark (assuming you have enough electric data for that) and the CO2 emissions graph. The information displayed in those spots will reflect only the net electric usage of your building. Since it's missing the portion of your electric usage that was generated by your solar panels and used on site, it will cause your building to look artificially more efficient than it is.
Once you add your solar data to Wego, the electric benchmark will be based off your net usage plus your production data. This generates a complete picture of how much electricity your building actually consumed and provides better insight into the efficiency of your structure.
In this example building, before adding the solar production data the building looked very efficient. Once the solar production data was added to the building, the true (in)efficiency could be seen. This allows the building owner to see that while they've cut operating expenses by generating some of their power with PV, there is still ample opportunity for savings.
CO2 emissions and solar
When calculating the CO2 emissions, WegoWise does not assign any CO2 emissions to energy produced by the solar panels. CO2 emissions are only calculated for the net electric usage and any other fuels used on site. Looking at the same example building we used above, you can see where the solar panels were installed and the CO2 emissions of the building dropped.
It's interesting to note that even though the building is not very efficient, its CO2 emissions are often lower than both similar and efficient buildings. This is due to the fact that a sizable portion of its electricity is generated by the PV.