39 Miss. Code. R. 4-II-3-105
In each Billing Period, energy supplied to the DGIC from the EU as recorded on the EU's bi-directional meter or smart meter will be billed using appropriate commission-approved rate and rider schedules. This provision means that energy self-supplied by the DGIC, up to the amount supplied from the EU to the DGIC (e.g., through the recording of meter Channel 1) will be credited to the DGIC at the full retail rate (i.e., effectively displacing energy supplied from the EU). During that same Billing Period, any excess energy supplied from the DGIC to the EU and recorded on the EU's bidirectional net meter in kWh (e.g., through meter Channel 2) will be credited on the DGIC's bill at the applicable Total Value of Distributed Generation expressed in cents per kWh and shall be accounted for through the EU's fuel adjustment clause. The customer's monthly bill will be the total of billing for any usage (i.e., as recorded on meter Channel 1) subject to any customer charge and/or minimum bill provisions in the EU's rate and rider schedules less any credit due to the customer from excess energy exported to the EU (i.e., as recorded on meter Channel 2). If the sum total of the monthly bill is negative, any such amount will be carried over to the next Billing Period and applied to any charges arising during the subsequent Billing Period.
39 Miss. Code. R. 4-II-3-105