1. Dual Billing Process Flows (Model Business Practices 2.2.3) Distr. Company Supplier Customer Mtr. Rdg Entity Distribution Company prepares and renders bill for distribution (2.2.1.1) Customer receives bill for energy charges Customer receives bill for distribution charges Supplier prepares and renders bill for energy (2.2.1.1) Customer pays Supplier for energy charges (2.2.1.2) Usage Customer pays Distribution Company for distribution charges (2.2.1.2) Invoice Customer Payment Customer Payment u sage Meter reading entity sends usage Supplier receives and processes Customer payment Distribution Company receives and processes Customer payment Document # 09-3A

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

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

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

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

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

7. charges and/or adjustments Send Usage Rejection Notice Receive rejection notice Receive Rejection Notice Calculate Supplier charges (including Dist. Co related charges), produces and sends Customer bill Dashed line denotes process if model includes a Central Registration Agent who also performs market settlement

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

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

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