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ONCOR INTERCONNECTIONAPPLICATION AND PROCESS FORDISTRIBUTED RESOURCES2016 Commercial and Residential Solar Programs Kickoff MeetingNovember 11-12, 2015Ken BrunkenhoeferOncor Asset Planning

OVERVIEW1. GENERAL INFORMATION2. TARIFF APPLICATION AND INTERCONNECTIONAGREEMENT STEPS & TIMELINES3. “What happened to the energy I generated?”211/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

1. GENERAL INFORMATION2. TARIFF APPLICATION AND INTERCONNECTION AGREEMENT STEPS & TIMELINES3. “What happened to the energy I generated?”311/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

GENERAL INFORMATIONWhat has changed since last year?123411/05/2015 Oncor introduced eTRACK Increase of applications submitted Decrease in overall process timePresented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

GENERAL INFORMATIONWhat has changed since last year?123511/05/2015 Oncor introduced Increase of applications submitted Decrease in overall process timePresented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

General Information1 Oncor introducedWhat it means for Installers Allows Installers to have administrative control ofprojects Know the status of the project in real time Receive email notification, as the project movesthrough the workflow Check the meter and profile status Download agreements and permission to operateletters as soon as the documents become available Documents for the projects are all ways available ineTRACK611/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

GENERAL INFORMATION711/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

General Information1 Oncor introducedWhat it means for Oncor Decreases the amount of time for processingapplications and agreements Files stored in a centralized location Improves data sharing among departments and withinstallers Track the growth of parallel operation interconnectedwith the Oncor grid Improves accuracy of reporting Provide better overall service to our customers811/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

General InformationWhat has changed since last year?123911/05/2015 Oncor introduced eTRACK Increase of applications submitted Decrease in overall process timePresented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

General Information2 Increase of applications submittedClasses of Systems 0 – 500 kW Generally classified as small 501- 10,000 kW Generally Classified as large Larger systems normally require Impact Study Fees (See ImpactStudy Fee schedule in tariff application) Network Systems are downtown grid connected systems(Downtown Dallas and Fort Worth; see Impact Study Feeschedule in tariff application)1011/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

GENERAL INFORMATION Increase of applications submitted2DG FACILITIES INTERCONNECTED WITH hronousTotalSeptember 28, 201511C&IkW11/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

General Information2 Increase of applications submittedSolar Interconnection Updatesas of September 20151211/05/2015SolarNumber ofFacilitieskW of FacilitiesFacilities 20092702,499Facilities in 20104694,807Facilities in 20113417,895Facilities in 20123036,328Facilities in 20139209,419Facilities in 20141,57217,094Total YTD 20151,26610,2305,14158,272Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

General d by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

General d by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

General InformationWhat has changed since last year?1231511/05/2015 Oncor introduced eTRACK Increase of applications submitted Decrease in overall process timePresented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

General Information3 Decrease in overall process timeWhat it means for Installers Overall average application time was up to 6weeks Application initial review time has decreased toapproximately 10 days Average processing time for Oncor finalizingAgreement and issuing PTO is now up to 5 days1611/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

1. GENERAL INFORMATION2. TARIFF APPLICATION ANDINTERCONNECTION PROCESS FORDISTRIBUTED RESOURCES3. “What happened to the energy I generated?”1711/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

ONCOR INTERCONNECTION STEPS FORDISTRIBUTED RESOURCES1. Customer Application2. Oncor Initial Screening3. Oncor System Impact Assessment4. Interconnection Agreement (IA)5. Customer Signed IA6. Construction, Commissioning, and Metering7. Executed IA & Permission to Operate (PTO)8. ERCOT Profile Changes1811/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

1. CUSTOMER APPLICATIONCustomer Submits Tariff Application (TA) to Oncor Tariff Application available at www.oncor.com/dg Applications submitted through eTRACK https://oncor.anbetrack.com bythird party installers signed up by sending email to dg@oncor.comConsiderations Submitted by customer or customer’s installer Application requirements for small and large systems: Customer informationEquipment dataCommunication contactOne-line diagramLayout sketch Relay functional diagramSequence of operationBreaker failure schemePreliminary relay settingsStudy feeTiming Oncor – customer starts the process Customer – possible delays due to incomplete applications1911/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

2. ONCOR INITIAL SCREENING (smaller systems)Oncor Reviews Application Advising Customer of the Process Application reviewed for completeness, customer provides site location,desired in-service date, connected capacity and equipment details eTRACK email notification whether the application is approved or returnedback to the customer for additional detailsConsiderations (smaller systems review) Review of ownership and legal name for Interconnection Agreement (IA) Review of equipment certification Review of contact information Review of one-line sketch Review of layout sketch Review of placard specificationsTiming Oncor – majority of applications reviewed within 10 days Customer – mutual urgency for transparent exchange of information2011/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

3. ONCOR SYSTEM IMPACT ASSESSMENTAssessment of System Impacts and Upgrades for Reliable Interconnection Service study is performed by Oncor Review site specific information to determine potential systems impacts Metering, feeders, substation, and system protectionConsiderations Small projects (generally 5 kW or less) are approved and the system impactassessment is done in aggregate All other projects are studied on a case-by-case basis considering thecapability of Oncor facilities and desired DG capacityTiming Oncor – small projects within 5 days, others as schedule with customers Customer – decision to proceed if upgrades are necessary2111/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

4. INTERCONNECTION AGREEMENT (IA)Oncor Prepares an Interconnection Agreement Interconnection Agreement language is approved by the PUC, continuesto be evaluated, and generally non-negotiable IA provisions for private or federal governmental entitiesConsiderations IA prepared with direct customer input including all customer information,equipment data, one-line diagram and layout sketch For small systems, eTRACK forwards the IA electronically to the customer(or customer’s third party installer) for customer approval and signature Oncor utilizes electronic signatures through eTRACK or can accommodatethe entire process manually for individual customers as neededTiming Oncor – IA prepared within 3 days Customer – dependent on customer approval and signature2211/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

5. CUSTOMER SIGNED IACustomer Returns Signed Interconnection Agreement (IA) An interconnection agreement is required for all distributed resources thatoperate in parallel with the Oncor delivery system Distributed resources that never connect electrically in parallel do not haveany interconnection requirements by OncorConsiderations Signed IA uploaded into eTRACK by customer or customer’s agent If the agreement is not signed and returned (generally within 90 days) it willbe cancelled and deleted from eTRACKTiming Oncor – project on hold awaiting customer signature Customer – dependent on customer approval and signature2311/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

6. CONSTRUCTION, COMMISSIONING, AND METERINGOncor Proceeds with Construction, Commissioning and Metering Oncor orders equipment and schedules resources following the fullyexecuted IA and payment for system upgrades Peak demands greater than 700 kW or distributed resources greater than1,000 kW require Interval Data Recorder (IDR) metering ERCOT Polled Settlement (EPS) metering is optional unless the distributedresource capacity exceeds 10 MW then it is requiredConsiderations Majority of distributed resources (small certified systems) use AMS meteringand do not require system upgrades or commissioning AMS meters are currently field programmed to enable an out-flow channel soboth in-flow and out-flow of energy are reportedTiming Oncor – most within 10 days after the IA is signed Customer – dependent on customer commissioning of equipment2411/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting

METERINGObtaining Energy DataTestENERGY CONSUMEDToday's reading minus previous readingand result (encourage charting history)Demand Not Usedfor ResidentialENERGY SENT TO THE GRIDOncor FAQ – From WebsiteCan I get a list of common questions relating to metering?How do I read my DRG Meter?11/05/2015Presented by Ken Brunkenhoefer at the2016 Commercial and Residential SolarPrograms Kickoff Meeting2525

7. EXECUTED IA AND PERMISSION TO OPERATE (PTO)Oncor Approves IA and Sends Permission to Operate Final signature approval and date by Oncor fully executes the IA and withthe PTO, the customer may operate their distributed resource Credits from the out-flow of energy to the grid will not be reported to ERCOTuntil the first full monthly billing cycle following either the date of theexecuted IA or the meter reprogram dateConsiderations Permission to Operate (PTO) notification is sent automatically from eTRACKby email following the fully executed IA The electronic communication from eTRACK is directed by customer input totheir designated contactsTiming Oncor – within 5 days for most projects and eTRACK sends the PTO sameday following the fully executed IA Customer – dependent on when customer chooses to operate2611/05/2015Presented by Ken Brunkenhoefer at the 2016 Commercial and Residential Solar Programs Kickoff Meeting