dgmanual - Distributed Generation Interconnection Manual...

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Distributed Generation Interconnection Manual Public Utility Commission of Texas Prepared by: Distributed Utility Associates Endecon Engineering 1062 Concannon Blvd. 347 Norris Court Livermore, CA 94550 San Ramon, CA 94583 925-447-0604 925-552-1330 dua@ix.netcom.com www.endecon.com May 1, 2002 U.S. Department of Energy Office of Energy Efficiency and Renewable Energy
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PUCT DG Interconnection Manual 05/01/02 ii TABLE OF CONTENTS 1. Introduction . .................................................................................................. 1-1 2. Safety Requirements. .................................................................................... 2-1 2.1. PUCT Rules . ............................................................................................. 2-1 2.2. TNRCC Rules . .......................................................................................... 2-1 2.3. Local Codes and Standards. ..................................................................... 2-2 2.4. National Codes and Standards . ................................................................ 2-2 2.4.1. National Fire Protection Association. ...................................................... 2-2 2.4.2. Institute of Electrical and Electronics Engineers (IEEE) . ........................ 2-3 2.4.3. Underwriters Laboratories . ..................................................................... 2-4 3. Technical Summary. ...................................................................................... 3-1 3.1. General . .................................................................................................... 3-1 3.2. Prevention of Interference. ........................................................................ 3-1 3.3. Requirements. ........................................................................................... 3-2 4. TDU Analyses of DG Interconnections. ......................................................... 4-1 4.1. Utility Processing of DG Applications . ....................................................... 4-1 4.2. DG Interconnection Requirements Review . .............................................. 4-7 4.2.1. DG Application Review. .......................................................................... 4-7 4.2.2. Distribution System Type Review. .......................................................... 4-7 4.2.3. Network Secondary Review. ................................................................... 4-8 4.2.4. Non-Network Review. ........................................................................... 4-11 4.2.5. Issues That May Require Additional Review . ....................................... 4-13 4.3. Cost/Benefit Impacts of DG. .................................................................... 4-14 4.3.1. TDU Benefits and Costs. ...................................................................... 4-14 4.3.2. Customer Benefits and Costs. .............................................................. 4-19 4.3.3. Other Benefits and Costs . .................................................................... 4-24 4.4. Operational Protocols. ............................................................................. 4-27 5. DG Applicant information . ............................................................................. 5-1 5.1. DG Applicant Rights and Responsibilities . ................................................ 5-1 5.2. TDU Rights and Responsibilities. .............................................................. 5-2 5.3. Interconnection Process. ........................................................................... 5-3 5.4. Frequently Asked Questions (FAQs) About DG Interconnections. ............ 5-4 6. Energy Efficiency and Customer-Owned Resources . ................................... 6-1 7. Pre-certification Process . .............................................................................. 7-1 8. Interconnection Disputes. .............................................................................. 8-1 Appendix A1: Definitions . ................................................................................ A1-1 Appendix A2: Copy of PUCT’s Rules, Forms and PURA 99 Excerpts . ........... A2-1 Appendix A3: Summary of DG Technologies. ................................................. A3-1 Appendix A4: Texas Utility Contacts . .............................................................. A4-1 Appendix A5: Internet Links . ........................................................................... A5-1 Links for Electric Distribution Companies in Texas . ........................................ A5-2 Appendix A6: Additional Safety and Performance References . ...................... A6-1 Appendix A7: Pre-Certification Requirements. ............................................... A7-1 Revisions to the Manual. ............................................................................... A7-10
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PUCT DG Interconnection Manual 05/01/02 1-1 1. INTRODUCTION The Public Utility Commission of Texas (PUCT) has prepared this manual to guide the inclusion of distributed generation into the Texas electric system. It is intended for use by utility engineers processing distributed generation interconnection applications, as well as those persons considering or proposing the interconnection of distributed generation with a transmission and distribution utility (TDU). While every possible eventuality or circumstance cannot be anticipated, the procedures in this manual should cover most important issues or problems, including a process for prompt dispute resolution. Texas’ Public Utility Regulatory Act (PURA) of 1999 included in the list of customer rights and safeguards that “A customer is entitled to have access… to on-site distributed generation…” [§39.101(b)(3)]. This provision led the PUCT in October 1999 to adopt Substantive Rules §25.211 and §25.212 addressing the technical and
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dgmanual - Distributed Generation Interconnection Manual...

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