CenterPoint Energy Houston Electric, LLC 1111 LOUISIANA P. O. BOX 1700 .

TARIFF FOR RETAIL DELIVERY SERVICECenterPoint Energy Houston Electric, LLC1111 LOUISIANAP. O. BOX 1700HOUSTON, TEXAS 772511

Table of ContentsSheet No. TOC-1Page 1 of 7CenterPoint Energy Houston Electric, LLCApplicable: Entire Service AreaCNP 8008TABLE OF CONTENTSCHAPTER 1: DEFINITIONS .9CHAPTER 2: DESCRIPTIONS OF COMPANY’S CERTIFIED SERVICE AREA .19CHAPTER 3: GENERAL SERVICE RULES & REGULATIONS .223.1APPLICABILITY . 223.2GENERAL . 223.3DESCRIPTION OF SERVICE . 223.4CHARGES ASSOCIATED WITH DELIVERY SERVICE . 233.5AVAILABILITY OF TARIFF . 233.6CHANGES TO TARIFF. 233.7NON-DISCRIMINATION . 243.8FORM AND TIMING OF NOTICE . 243.9DESIGNATION OF COMPANY CONTACT PERSONS FOR MATTERS RELATING TODELIVERY SERVICE . 243.10INVOICING TO STATE AGENCIES . 253.11GOVERNING LAWS AND REGULATIONS . 253.12GOOD-FAITH OBLIGATION. 253.13QUALITY OF DELIVERY SERVICE . 253.14COOPERATION IN EMERGENCIES. 263.15SUCCESSORS AND ASSIGNS . 263.16EXERCISE OF RIGHT TO CONSENT . 263.17WAIVERS . 263.18NON-BUSINESS DAY DESIGNATIONS . 263.19PUBLIC SERVICE NOTICE . 273.20HEADINGS . 27CHAPTER 4: SERVICE RULES AND REGULATIONS RELATING TO ACCESS TORevision Number: 24thEffective: 10/31/152

Table of ContentsSheet No. TOC-1Page 2 of 7CenterPoint Energy Houston Electric, LLCApplicable: Entire Service AreaCNP 8008DELIVERY SYSTEM OF COMPANY BY COMPETITIVE RETAILERS .284.1GENERAL SERVICE RULES AND REGULATIONS . 284.1.1APPLICABILITY OF CHAPTER . 284.1.2REQUIRED NOTICE. 284.2LIMITS ON LIABILITY . 284.2.1LIABILITY BETWEEN COMPANY AND COMPETITIVE RETAILERS . 284.2.2LIMITATION OF DUTY AND LIABILITY OF COMPETITIVE RETAILER . 294.2.3DUTY TO AVOID OR MITIGATE DAMAGES . 294.2.4FORCE MAJEURE . 294.2.5EMERGENCIES AND NECESSARY INTERRUPTIONS . 294.2.6LIMITATION OF WARRANTIES BY COMPANY . 304.3SERVICE . 304.3.1ELIGIBILITY . 304.3.2INITIATION OF DELIVERY SYSTEM SERVICE (SERVICE CONNECTION) . 314.3.2.1 INITIATION OF DELIVERY SYSTEM SERVICE WHERE CONSTRUCTION SERVICESARE NOT REQUIRED . 314.3.2.2 INITIATION OF DELIVERY SYSTEM SERVICE WHERE CONSTRUCTION SERVICESARE REQUIRED . 31REQUESTS FOR DISCRETIONARY SERVICES INCLUDING CONSTRUCTION4.3.3SERVICES . 324.3.4CHANGING OF DESIGNATED COMPETITIVE RETAILER . 324.3.5SWITCHING FEE . 334.3.6IDENTIFICATION OF THE PREMISES AND SELECTION OF RATE SCHEDULES . 334.3.7PROVISION OF DATA BY COMPETITIVE RETAILER TO COMPANY . 344.3.8SUSPENSION OF DELIVERY SERVICE . 354.3.9CRITICAL CARE, CHRONIC CONDITION, CRITICAL LOAD CUSTOMERDESIGNATION . 354.3.9.1 CRITICAL CARE RESIDENTIAL CUSTOMER OR CHRONIC CONDITIONRESIDENTIAL CUSTOMER STATUS . 354.3.9.2 CRITICAL LOAD INDUSTRIAL CUSTOMER OR CRITICAL LOAD PUBLIC SAFETY. 354.3.9.3 OTHER COMPANY RESPONSIBILITIES . 364.3.10NOTICED SUSPENSION NOT RELATED TO EMERGENCIES OR NECESSARYINTERRUPTIONS . 364.3.11RESTORATION OF DELIVERY SERVICE . 374.3.12DISCONNECTION OF SERVICE TO RETAIL CUSTOMER’S FACILITIES AT THEREQUEST OF COMPETITIVE RETAILER . 374.3.12.1 MOVE OUT REQUEST . 374.3.12.2 DISCONNECTION DUE TO NON-PAYMENT OF COMPETITIVE RETAILERCHARGES; RECONNECTION AFTER DISCONNECTION . 374.3.12.3 COORDINATED DISCONNECTION . 38CUSTOMER REQUESTED CLEARANCE . 384.3.13EXTREME WEATHER . 384.3.144.4BILLING AND REMITTANCE . 384.4.1CALCULATION AND TRANSMITTAL OF DELIVERY SERVICE INVOICES. 384.4.2CALCULATION AND TRANSMITTAL OF CONSTRUCTION SERVICE CHARGES . 394.4.3INVOICE CORRECTIONS . 394.4.4BILLING CYCLE . 404.4.5REMITTANCE OF INVOICED CHARGES . 40Revision Number: 24thEffective: 10/31/153

Table of ContentsSheet No. TOC-1Page 3 of 7CenterPoint Energy Houston Electric, LLCApplicable: Entire Service Area4.4.64.4.74.4.84.4.9CNP 8008DELINQUENT PAYMENTS. 41PARTIAL PAYMENTS . 41INVOICE DISPUTES. 41SUCCESSOR COMPETITIVE RETAILER . 424.5SECURITY DEPOSITS AND CREDITWORTHINESS . 424.5.1SECURITY RELATED TO TRANSITION CHARGES . 424.5.2SECURITY RELATED TO OTHER DELIVERY CHARGES . 434.5.2.1 DEPOSIT REQUIREMENTS . 434.5.2.2 SIZE OF DEPOSIT . 434.5.2.3 FORM OF DEPOSIT. 434.5.2.4 INTEREST . 444.5.2.5 HISTORICAL DEPOSIT INFORMATION . 444.5.2.6 REFUND OF DEPOSIT . 444.6DEFAULT AND REMEDIES ON DEFAULT . 444.6.1COMPETITIVE RETAILER DEFAULT . 444.6.2REMEDIES ON DEFAULT . 454.6.2.1 DEFAULT RELATED TO FAILURE TO REMIT PAYMENT OR MAINTAIN REQUIREDSECURITY . 454.6.2.2 DEFAULT RELATED TO FAILURE TO SATISFY OBLIGATIONS UNDER TARIFF. 464.6.2.3 DEFAULT RELATED TO DE-CERTIFICATION . 46CURE OF DEFAULT . 464.6.34.7MEASUREMENT AND METERING OF SERVICE . 464.7.1MEASUREMENT . 464.7.2METER READING . 474.7.2.1 DENIAL OF ACCESS BY RETAIL CUSTOMER . 474.7.2.2 ESTIMATES FOR REASONS OTHER THAN FOR DENIAL OF ACCESS BY RETAILCUSTOMER. 484.7.2.3 STANDARD METER DATA . 49REPORTING MEASUREMENT DATA . 494.7.34.7.4METER TESTING . 494.7.5INVOICE ADJUSTMENT DUE TO METER INACCURACY, METER TAMPERING ORTHEFT . 504.8DATA EXCHANGE . 504.8.1DATA FROM METER READING . 504.8.1.1 DATA RELATED TO INTERVAL METERS . 514.8.1.2 DATA REPORTED BY VOLUMETRIC (KWH) METERS . 524.8.1.3 METER READING FOR THE PURPOSE OF A SELF-SELECTED SWITCH OR TOVERIFY ACCURACY OF METER READING . 524.8.1.4 ESTIMATED USAGE . 524.8.1.5 METER/BILLING DETERMINANT CHANGES . 534.8.1.6 NOTICE OF PLANNED AND UNPLANNED INTERRUPTIONS TO MARKETCOMMUNICATIONS AND DATA EXCHANGE . 53DATA FOR UNMETERED LOADS . 544.8.24.8.3ADJUSTMENTS TO PREVIOUSLY TRANSMITTED DATA . 544.8.4DATA EXCHANGE PROTOCOLS. 554.9DISPUTE RESOLUTION PROCEDURES . 554.9.1COMPLAINT PROCEDURES . 55Revision Number: 24thEffective: 10/31/154

Table of ContentsSheet No. TOC-1Page 4 of 7CenterPoint Energy Houston Electric, LLCApplicable: Entire Service Area4.9.2CNP 8008COMPLAINT WITH REGULATORY AUTHORITY . 564.10SERVICE INQUIRIES . 564.11OUTAGE AND SERVICE REQUEST REPORTING . 574.11.1NOTIFICATION OF INTERRUPTIONS, IRREGULARITIES, AND SERVICE REQUESTS . 574.11.2RESPONSE TO REPORTS OF INTERRUPTIONS AND REPAIR REQUESTS . 58CHAPTER 5: SERVICE RULES AND REGULATIONS RELATING TO THEPROVISION OF DELIVERY SERVICE TO RETAIL CUSTOMERS .595.1GENERAL . 595.1.1APPLICABILITY OF CHAPTER . 595.1.2COMPANY CONTACT INFORMATION . 595.2LIMITS ON LIABILITY . 595.2.1LIABILITY BETWEEN COMPANY AND RETAIL CUSTOMERS . 595.2.2LIMITATION OF DUTY AND LIABILITY OF COMPETITIVE RETAILER . 605.2.3DUTY TO AVOID OR MITIGATE DAMAGES . 605.2.4FORCE MAJEURE . 605.2.5EMERGENCIES AND NECESSARY INTERRUPTIONS . 615.2.6LIMITATION OF WARRANTIES BY COMPANY . 615.3SERVICE . 615.3.1INITIATION OF DELIVERY SYSTEM SERVICE (SERVICE CONNECTION) . 625.3.1.1 INITIATION OF DELIVERY SYSTEM SERVICE WHERE CONSTRUCTION SERVICESARE NOT REQUIRED . 625.3.1.2 INITIATION OF DELIVERY SYSTEM SERVICE WHERE CONSTRUCTION SERVICESARE REQUIRED . 62REQUESTS FOR CONSTRUCTION SERVICES. 635.3.25.3.3CHANGING OF DESIGNATED COMPETITIVE RETAILER . 635.3.4SWITCHING FEES AND SWITCHOVERS . 635.3.5IDENTIFICATION OF THE PREMISES AND SELECTION OF RATE SCHEDULES . 635.3.6CHANGES IN RATE SCHEDULES. 645.3.7SUSPENSION OF SERVICE . 655.3.7.1 SUSPENSIONS WITHOUT PRIOR NOTICE . 655.3.7.2 NOTICED SUSPENSION NOT RELATED TO EMERGENCIES OR NECESSARYINTERRUPTIONS . 655.3.7.3 RESTORATION OF SERVICE . 665.3.7.4 PROHIBITED SUSPENSION OR DISCONNECTION . 66DISCONNECTION AND RECONNECTION OF SERVICE TO RETAIL CUSTOMER’S5.3.8FACILITIES . 675.4ELECTRICAL INSTALLATION AND RESPONSIBILITIES . 675.4.1RETAIL CUSTOMER’S ELECTRICAL INSTALLATION AND ACCESS . 675.4.2INSPECTION AND APPROVAL OF RETAIL CUSTOMER’S ELECTRICALINSTALLATION . 685.4.3LOCATION OF POINT OF DELIVERY AND RETAIL CUSTOMER’S ELECTRICINSTALLATION . 685.4.4CONNECTION OF RETAIL CUSTOMER’S ELECTRICAL INSTALLATION TOCOMPANY FACILITIES . 695.4.5PROVISIONS FOR COMPANY FACILITIES AND EQUIPMENT AND THE METER . 69Revision Number: 24thEffective: 10/31/155

Table of ContentsSheet No. TOC-1Page 5 of 7CenterPoint Energy Houston Electric, LLCApplicable: Entire Service Area5.4.65.4.75.4.8CNP 8008RETAIL CUSTOMER’S DUTY REGARDING COMPANY’S FACILITIES ON RETAILCUSTOMER’S PREMISES . 69UNAUTHORIZED USE OF DELIVERY SYSTEM. 70ACCESS TO RETAIL CUSTOMER’S PREMISES . 705.5RETAIL CUSTOMER’S ELECTRICAL LOAD . 715.5.1LOAD BALANCE. 715.5.2INTERMITTENT ELECTRICAL LOADS AND LIMITATIONS ON ADVERSE EFFECTS . 715.5.3EQUIPMENT SENSITIVE TO VOLTAGE AND WAVE FORMS . 715.5.4CHANGE IN RETAIL CUSTOMER’S ELECTRICAL LOAD . 715.5.5POWER FACTOR . 725.5.6TESTING OF RETAIL CUSTOMER EQUIPMENT . 735.6LIMITATIONS ON USE OF DISTRIBUTION SERVICE . 735.6.1INTRASTATE RETAIL DELIVERY SERVICE LIMITATIONS (FOR ERCOT UTILITIES) . 735.6.2PARALLEL OPERATION. 735.7FACILITIES EXTENSION POLICY . 745.7.1GENERAL. 745.7.2CONTRACTUAL ARRANGEMENTS . 745.7.3PROCESSING OF REQUESTS FOR CONSTRUCTION OF DELIVERY SYSTEM . 755.7.4ALLOWANCE FOR FACILITIES. 755.7.5NON-STANDARD FACILITIES . 755.7.6CUSTOMER REQUESTED FACILITY UPGRADES . 765.7.7TEMPORARY DELIVERY SYSTEM. 765.7.8REMOVAL AND RELOCATION OF COMPANY’S FACILITIES AND METERS . 765.7.9DISMANTLING OF COMPANY’S FACILITIES. 765.8BILLING AND REMITTANCE . 775.8.1BILLING OF DELIVERY CHARGES . 775.8.2BILLING TO RETAIL CUSTOMER BY COMPANY . 775.9DEFAULT AND REMEDIES ON DEFAULT . 775.9.1COMPANY REMEDIES ON DEFAULT BY COMPETITIVE RETAILER . 775.10METER . 785.10.1METERING PRACTICES . 785.10.2RETAIL CUSTOMER RESPONSIBILITY AND RIGHTS. 785.10.2.1 REQUIREMENTS. 78METERING OF RETAIL CUSTOMER’S INSTALLATION IN5.10.3MULTI-METERED BUILDINGS . 795.10.4LOCATION OF METER . 795.10.5NON-COMPANY OWNED METERS . 805.11RETAIL CUSTOMER INQUIRIES . 815.11.1SERVICE INQUIRIES . 815.11.2COMPLAINTS . 825.11.3BILLING INQUIRIES . 825.12OUTAGE REPORTING . 825.12.1NOTIFICATION OF INTERRUPTIONS, IRREGULARITIES, AND SERVICE REPAIRREQUESTS . 825.12.2RESPONSE TO REPORTS OF INTERRUPTIONS AND REPAIR REQUESTS . 82Revision Number: 24thEffective: 10/31/156

Table of ContentsSheet No. TOC-1Page 6 of 7CenterPoint Energy Houston Electric, LLCApplicable: Entire Service AreaCNP 8008CHAPTER 6: COMPANY SPECIFIC ITEMS .836.1RATE SCHEDULES. 836.1.1DELIVERY SYSTEM CHARGES . 836.1.1.1 CHARGES FOR TRANSMISSION AND DISTRIBUTION SYSTEM SERVICE . 836.1.1.1.1 RESIDENTIAL SERVICE . 836.1.1.1.2 SECONDARY SERVICE LESS THAN OR EQUAL TO 10 KVA. 856.1.1.1.3 SECONDARY SERVICE GREATER THAN 10 KVA . 876.1.1.1.4 PRIMARY SERVICE . 916.1.1.1.5 TRANSMISSION SERVICE . 956.1.1.1.6 LIGHTING SERVICES . 996.1.1.2 SCHEDULE TC . 1086.1.1.2.1 SCHEDULE TC – TRANSITION CHARGES . 1086.1.1.2.2 SCHEDULE TC2- TRANSITION CHARGES . 1376.1.1.2.3 SCHEDULE TC3- TRANSITION CHARGES . 1676.1.1.2.4 SCHEDULE SRC- SYSTEM RESTORATION CHARGES . 1966.1.1.2.5 SCHEDULE TC5 – TRANSITION CHARGES . 2136.1.1.3 CTC . 2426.1.1.3.1 RIDER CTC – COMPETITION TRANSITION CHARGES. 2426.1.1.4 CHARGES FOR SBF . 2436.1.1.4.1 RIDER SBF – SYSTEM BENEFIT FUND . 2436.1.1.5CHARGES FOR NUCLEAR DECOMMISSIONING. 2446.1.1.5.1 RIDER NDC- NUCLEAR DECOMMISSIONING CHARGES . 2446.1.1.6OTHER CHARGES . 2456.1.1.6.3 RIDER TCRF - TRANSMISSION COST RECOVERY FACTOR . 2456.1.1.6.4 RATE ESS - RETAIL ELECTRIC SERVICE SWITCHOVERS . 2486.1.1.6.5 RIDER CMC - COMPETITIVE METERING CREDIT . 2496.1.1.6.6 RIDER RCE - RATE CASE EXPENSES SURCHARGE . 2506.1.1.6.8 RIDER AMS - ADVANCED METERING SYSTEM SURCHARGE . 2516.1.1.6.9 RIDER EECRF – ENERGY EFFICIENCY COST RECOVERY FACTOR . 2526.1.1.6.10 RIDER ADFITC – ACCUMULATED DEFERRED FEDERAL INCOME TAXCREDIT . 2536.1.1.6.11 RIDER TC REFUND – REFUND OF TRANSITION CHARGES. 2556.1.1.6.12 RIDER REMAND — REMAND OF EECRF SURCHARGE .

CenterPoint Energy Houston Electric, LLC 1111 LOUISIANA P. O. BOX 1700 HOUSTON, TEXAS 77251 1. Table of Contents Sheet No. TOC-1 Page 1 of 7 CenterPoint Energy Houston Electric, LLC Applicable: Entire Service Area CNP 8008 Revision Number: 24th Effective: 10/31/15 TABLE OF CONTENTS .