Dual Billing Process Flows Document # 09-6C Dual Billing Process Flows (Model Business Practices 2.2.3) Customer pays Customer pays Customer receives Supplier Customer receives Distribution Company Customer bill for energy for energy bill for distribution for distribution charges charges charges charges (2.2.1.2) (2.2.1.2) Invoice Customer Customer Supplier Payment Payment prepares and Supplier receives and processes Customer payment Supplier renders bill for energy (2.2.1.1) Distribution Distribution Company receives and processes Customer payment Company prepares Distr. Company Invoice and renders bill for distribution (2.2.1.1) Entity u sage Usage Rdg Meter reading entity sends usage . Mtr

Dual Billing Process Flows Meter Usage Cancellation and Restatement Process (Model Business Practices 2.2.3) Customer receives Customer receives adjusted Supplier Customer adjusted Distribution charges Company charges adjusted invoice Supplier Supplier adjusted initiates invoice re - bill process Distribution Distr. Company Company initiates re - bill process restated cancelled cancelled restated Entity usage usage usage usage Rdg Meter reading entity determines initial usage was . incorrect; sends cancel usage notice and restated usage Mtr

Bill Ready Process Flows Consolidated Billing - Bill Ready Process Flows (Model Business Practices 2.4.3) Customer receives bill Customer Delay caused by Billing Party? Billing Party Billing Party Billing Party receives usage calculates its prepares & renders data charges bill with all available charges No Yes Yes No Billing Party performs cancel and rebill (unless other action specified in BSA) (2.4.1.8) Process NBP transactions Billing Party NBP Yes file O.K. for processing? Yes Transaction NBP charges O.K.? in time for bill? No Hold for next bill? Yes No As specified in BSA (2.4.1.7) Billing Party receives Non - Send rejection Send acknow - Send rejection Hold Billing Party notification ledgement notification transaction for charges (2.4.1.3) (2.4.1.2) (2.4.1.6) Send rejection notification next bill Meter reading entity sends usage Receive Receive rejection acknow - Receive rejection NBP resends Billing Party ledgement for next bill Non - Billing Party Time to - Non - Billing calculates its Yes Time to Party receives charges and fix & No No fix & Non usage data sends them to re - submit? re - submit? Billing Party Hold transaction(s) for next bill Yes

Bill Ready Process Flows Consolidated Billing - Bill Ready Process Flows Meter Usage Cancellation and Re - bill Process (Model Business Practices 2.4.3) Customer receives bill Customer Billing Party Billing Party Delay caused by Billing Party? Billing Party receives calculates its prepares & renders restated charges bill with all available usage data Transactions held from prior periods charges Yes Yes No Billing Party performs cancel and rebill (unless other action specified in BSA) (2.4.1.8) Process NBP transactions Billing Party NBP file O.K. for processing? Yes Yes No Transaction NBP charges O.K.? in time for Yes for bill? No Hold for next bill? Yes No No As specified in BSA (2.4.1.7) Billing Party receives Non - Send rejection Send acknow - Send rejection Billing Party notification ledgement Hold notification Meter reading entity transaction for determines initial usage charges (2.4.1.3) (2.4.1.2) (2.4.1.6) Send rejection notification next bill was incorrect; sends cancel usage notice and corrected Receive Receive acknow - Receive rejection rejection NBP resends Billing Party ledgement for next bill Non - Billing Non - Billing Party - Party receives calculates its Yes Time to No No Time to restated charges and fix & fix & Non usage data sends them to re - submit? re - submit? Billing Party Hold transaction(s) for Yes Transactions held from prior periods next bill

Rate Ready Process Flows Consolidated Billing - Rate Ready Process Flows (Model Business Practices 2.5.3) Customer receives Customer Consolidated Bill Billing Party Billing Party calculates prepares and Billing Party renders charges Consolidated Bill Input Billing Party Rate Codes and prices in Billing Party Billing Party billing system receives Billing Party calculates sends notice of (2.5.1.1 & usage data Non - Billing Party Non - Billing 2.5.1.2) charges using Party charges effective Rate Codes (2.5.1.3) Billing Party Provides Rate Codes Non - Billing and prices Party receives - (2.5.1.1 & 2.5.1.2) billing data Non Entity Meter reading entity Rdg sends usage . Mtr

Rate Ready Process Flows Consolidated Billing - Rate Ready Process Flows Meter Usage Cancellation and Re - bill Process (Model Business Practices 2.5.3) Customer receives Customer adjusted Consolidated Bill Billing Party Billing Party re - bills the re - calculates Customer using Billing Party restated usage charges (2.5.1.5) Billing Party Billing Party receives restated Billing Party usage data sends notice of Billing Party credit/debit or re - calculates net amount to Non - Billing Party Non - Billing Part charges (2.5.1.5) Non - Billing Party Billing Party receives notice and re - states customer Accounts Receivable (2.5.1.5) - Non Entity Restated Cancelled usage usage Meter reading entity determines initial usage was incorrect; sends cancel usage notice and restated usage Rdg . Mtr

Single Retail Supplier Billing Central Registration Agent Single Retail Supplier Billing (Model Business Practices 2.6.3) Receives Usage Send/Resend Invoice Distribution Accept ? (N) (Y) Receive/Send Usage Rejection Notice Correct Usage Send Usage Rejection Does monthly usage match invoice? Meter Reading Entity Send/ Resend Usage Info. Meter Reading Entity Calculate Dist. Customer Supplier Customer Receives Bill (Energy& Distribution charges) Distribution Co * Calculate Supplier charges (including Dist. Co related charges), produces and sends Send Usage Customer bill Rejection Notice Receive Rejection Notice charges and/or adjustments Receive rejection notice Dashed line denotes process if model includes a Central Registration Agent who also performs market settlement

Payment Processing Assumption of Receivables Process Flow Consolidated Billing – Payment Processing Assumption of Receivables Process Flow (Model Business Practices 2.8.3) Customer disputes NBP bill Customer Customer receives bill Yes No Has BP made payment to the NBP Billing Party will Billing Party withhold payment receives notification for disputed NBP No of Customer dispute charges (2.7.1) (2.8.1.9) Billing Party Yes Billing Party Billing Party Billing Party Billing Party renders bill Proceed with sends remittance remits funds reverses payment Customer dispute notification to the to the Non - Billing made for disputed NBP charges process as specified Non - Billing Party Party ’ s financial (2.7.1.2) (2.8.1.3) institution (2.8.1.4) (2.8.1.9) Billing Party Non - Billing Party receives payment Non - Billing Party - receives notification Non

Payment Process Pay As You Get Paid Process Flows Consolidated Billing – Payment Process Pay As You Get Paid Process Flows (Model Business Practices 2.9.3) Customer makes payment Customer Billing Party receives payment (2.9.1.1) Payment adjusted (2.9.1.5) Payment posted in accordance with payment posting order (2.9.1.2) Billing Party Billing Party sends remittance remits funds Billing Party notification to the to the Non - Billing Billing Party Non - Billing Party Party ’ s financial Billing Party settles the (2.9.1.3) institution (2.9.1.4) sends remittance financial obligation notification to the with the Non - Billing Party NBP ’ s financial (2.9.1.5) institution (2.9.1.5) Billing Party Non - Billing Party Non - Billing Party Non - Billing Party Non - Billing Party - receives notification receives payment receives notification receives financial Non settlement

Single Retail Supplier Billing - Remittance from Supplier and Payment from Bank (Model Business Practices 2.10.3) Customer Supplier Bank Distribution Co * Co Bank Send payment Send Remittance authorization Detail Central Registration Agent Receives Receive Funds Remittance Detail Deposited Information Receives Payment Sends Payment Authorization Authorization only Receives Payment Deposits funds Authorization