Here is an explanation of the different bars in the
Consumption vs. Production graph:
Generated & Consumed
This is the amount of electrical energy that was generated by the renewable energy installation (photovoltaic or wind) and used to operate the facility.
Generated & Sold
This is the amount of electrical energy that was generated but not used, and was sold to the local electric utility grid.
Note: Technically, the excess energy is not actually sold. The dollar value of the excess energy is credited to the DNR facility's account. When the monthly electric bill is calculated, the amount due is reduced by the credited amount.
This is the energy that is purchased by the facility from the local electric grid when not enough energy is generated on-site. There may be days or weeks when there is no need to purchase energy, but over time most facilities do not generate all the energy they need.