1 Communication Plan for Change in DG Registration Threshold DG Registration Threshold > 1 MW –ERCOT Market Participant –Non-modeled RARF Aggregated unregistered DG < 50 kW and <= 1 MW is tracked and reported Protocol Section 16.5, Registration of a Resource Entity, Paragraph (5) –If aggregated unregistered DG exceeds 10 MW in any Load Zone, ERCOT shall issue a Market Notice that states a lower DG registration threshold to reduce the total installed capacity of DG greater than 50 kW to no more than 7 MW in any Load Zone –To become effective 9 months after Market Notice

2 Communication Plan for Change in DG Registration Threshold CSWG Special Meeting held Assumptions: Existing Protocol Language –No Grandfathering for existing DG –Not a one time event –The communication will provide the necessary information and not address enforcement Follow-up items for May 26 CSWG meeting: –ERCOT staff will verify that CBCI cannot be used to provide DG Facility Owner contact information –ERCOT staff will create a straw man communication document for CSWG review –CSWG will review the DG Resource Webpage on ERCOT.com for possible improvements

3 Communication Plan for Change in DG Registration Threshold TRIGGER: Unregistered DG reaches 10 MW in any one Load Zone ERCOT: Determine new DG Registration Threshold ERCOT: Issue Market Notice (Includes an to Authorized Representatives of all Distribution Companies) ERCOT: Meet with appropriate TAC Subcommittees to announce new DG Registration Threshold ERCOT: Contact NOIEs and TDSPs of specific DG Facilities impacted by the new Threshold ERCOT: Work with TDSPs and NOIEs to obtain information needed to contact the DG Facility Owners ERCOT: Send notice to impacted LSEs’ Authorized Representatives (This is just a heads up) ERCOT: Contact impacted DG Facility Owners - Include ‘Who is ERCOT’ and step by step instructions on how to become a Market Participant and how to register a DG Resource