Slide 1: Distributed Generation Technical Interconnection Requirements: Amendments Part 1
DISTRIBUTED GENERATION TECHNICAL INTERCONNECTION REQUIREMENTS: AMENDMENTS PART 1
Slide 2: Agenda
Agenda • Introduction • Amendment Proposals – NEW: Section 2.1.6, Page 30 – Time Delay for Automatic Reconnection of DGIT: Section 2.4.7, Page 118 – Metering Requirements: Section 2.7, Page 132 – SCADA Requirements for Embedded DG’s (LDC’s): Section 1.0, 1.1, Pages 7,8 – Control and Telecommunicatio
Slide 3: Introduction
Introduction • Distributed Generation Technical Interconnection Requirements (TIR) • First published November 2009 • Revision 1 published February 2010 • Further amendments will be presented today based on Industry standards, experiences and interaction with generation proponents 3
Slide 4: NEW: Section 2.1.6, Page 30
NEW: Section 2.1.6, Page 30 • Background – Based on recent experiences and reliability concerns – Higher reliability risk with larger collector systems or more connected equipment. – Fault in collector system should not cause operation of Hydro One protection equipment. – Proposed revision further a
Slide 5: Amendments Proposal
Amendments Proposal • Existing Requirement - A large collector system is ≥200m in length • Proposed Requirement - A large collector system is ≥ 200m in length or has multiple interface transformers. • Multiple interface transformers normally require collector lines totalling 200m or more in length.
Slide 6: 2.1.6 New Line
hyd rg 2.1.6 NEW LINE i) An automatic isolation device for a new line owned by the DG Owner that is 20.2 km shall be required at the PCC to disconnect the DG Owner's line from HONI's Distribution System for faults in the DG Owner's line. The DG Owner shall be responsible for the installation, operat
Slide 7: Time Delay for Automatic Reconnection of DGIT: Section 2.4.7
Time Delay for Automatic Reconnection of DGIT: Section 2.4.7, Page 118 • Background - Based on recent experiences with Distributed Generator voltage dip following feeder tripping - Magnitude of voltage dip severity increases with Interface Transformation Capacity - Voltage dip may be objectionable t
Slide 8: Amendment Proposal
Amendment Proposal • This amendment is proposed to avoid load customer complaints about the voltage dip associated with DG Interconnection Transformer energization. • Voltage dip which occurs within a short time of feeder restoration are more likely associated with the feeder disturbance. • Load cus
Slide 9: Changes in the TIR
Changes in the TIR • Section 2.4.7: Automatic Reconnection of Generation and HV Ground Sources - Step 1: Automatic DGIT Reconnection (HVI reclosing) (iii) The DGIT may be automatically re-energized using a HVI automatic reclosing scheme providing: (d) The Distribution System voltages are stable with
Slide 10: Metering Requirements TIR: Section 2.7
Metering Requirements TIR: Section 2.7, Page 132 • Amendments Proposal – NOP41 is a separate document and it has its own needs of thorough stakeholdering – Presently NOP41 is embedded in TIR – Changes to NOP41 require TIR updates as well – Proposed that NOP41 be separated from TIR, by providing a hy
Slide 11: Changes to be Made in TIR Document
hyd roF one Changes to be made in TIR Document 2.7 METERING REQUIREMENTS Metering requirements vary with the type and intent of the generation facility. Please consult the IESO Market Rules and the Distribution System Code Section 5 for details. Hydro One Networks Inc. has published a Metering polic
Slide 12: SCADA Requirements for Embedded DG's (LDC's)
SCADA Requirements for Embedded DG’s (LDC’s): Section 1.0, 1.1, Pages 7,8 • Background - For embedded DG’s, there has been some challenges in identifying the requirements for the Local Distribution Company (LDC) to provide Supervisory Control and Data Acquisition (SCADA) data to HONI - Section 1 sta
Slide 13: Amendments Proposal
Amendments Proposal • Add clarity to the requirements for DG project telemetry and control in another LDC’s service territory • The requirement for telemetry and control was previously publically stakeholdered • Ensuring consistency within the document 13
Slide 14: Introduction
hyd rg 1 INTRODUCTION This document, “Distributed Generation Technical Interconnection Requirements: Interconnections at Voltages 50kV and Below” outlines the technical requirements for the installation or modification of Distributed Generation (DG) projects connecting to Hydro One Networks Inc. (“H
Slide 15: 1.1 Scope
hyd rg 1.1 SCOPE This document applies to the following DG Facilities interconnecting to HONI's Distribution System (50kK¥ and below): |. Single-phase installations with an aggregate capacity > 10 kV and 2. Three-phase installations with an aggregate capacity > 30 kVV The document is intended to be
Slide 16: Control and Telecommunications Requirements TIR: Section 2.5
Control and Telecommunications Requirements TIR: Section 2.5, Pages 122-124 • Background - Existing TIR: Telecommunications Requirements are specified only for Control purposes under section 2.5 Control and Telecommunications Requirement - Relationship between Telecommunication and control is not cl
Slide 17: Amendments Proposal
Amendments Proposal • Move telecommunications requirements from section 2.5 to a new section 2.6 • Add clarity to the interface protection and alarm monitoring requirements for Class 2 generators • References to Telecommunications will be updated to reference the new section 2.6 • Remaining subsecti
Slide 18: Changes to be Made in the TIR Document
Changes to be Made in the TIR Document • Change 1: 2.5 Control and Monitoring Requirements • Change 2: 2.5.1 General (i) Control and monitoring facilities shall be required at DG Facilities connected to the Hydro One Networks Inc. Transmission and Distribution system for provision of real time opera
Slide 19: Changes to be Made in the TIR Document – Cont'd
Changes to be Made in the TIR Document – Cont’d • Change 4: 2.5.4.2 becomes 2.5.3.2 Class 2 Generators (b) Device Statuses: (1) Consolidated Connection Status at the PCC (HVI/LVI) (2) Status of individual DG units (3) All generation rejection selections • Change 5: (c) Alarms: (1) Where facilities e
Slide 20: SCADA Requirements DGs < 250 kW: Section 2.5.4
SCADA Requirements DGs’< 250 kW: Section 2.5.4, Page 125 • Amendments Proposal - Class 1 DG: SCADA link and modem not required as of today - May be requested by Hydro One at a later date - In order to support potential monitoring at a later date, a SCADA link and modem would be required at that time
Slide 21: 2.5.4.1 Class 1 Generators
hyd roF one 2.5.4.1 CLASS 1 GENERATORS i) DG Facilties wth a capacity of less than 250 KW shall have the provision for monitoring the disconnecting device at the PCC, li) Provisions for other quantities may be required and shall be determined by HONI, li) The actual implementation to install the SCA
Slide 22: Telecommunications Requirements: NEW Section 2.6
Telecommunications Requirements: NEW Section 2.6 • Background - Why add a new section on “Telecommunications Requirements”? Telecommunication facilities are critical for protection, control and real-time monitoring required for DG Connections In the current TIR document, telecommunications requi
Slide 23: Amendments Proposal
Amendments Proposal • New Section: 2.6 Telecommunications Requirements 2.6.1 General i. Telecommunication infrastructure is required by Distributed Generators connected to HONI’s Distribution system for provision of protection and real time operating data. ii.Telecommunication infrastructure shall b
Slide 24: Amendments Proposal
Amendments Proposal • New Section: 2.6 Telecommunications Requirements 2.6.1 General – Cont’d iii. HONI will indicate the viable alternative technologies that may be used for Telecommunications, which may include licensed/unlicensed microwave radio, optical fiber or Carrier- based leased circuits. i
Slide 25: Amendments Proposal
Amendments Proposal • New Section: 2.6 Telecommunications Requirements 2.6.1 General – Cont’d v. DG owner's shall provide the GPS coordinates of the DG Facility to assist in the evaluation of wireless communication alternatives. 25
Slide 26: Amendments Proposal
Amendments Proposal • New Sub-Section: 2.6.2 Telecommunications Facilities for Teleprotection i. A robust Telecommunication infrastructure will support the stringent reliability and latency requirements for Teleprotection. ii. The purpose of Teleprotection is to transmit critical information about t
Slide 27: Amendments Proposal
Amendments Proposal • New Sub-Section: 2.6.2 Telecommunications Facilities for Teleprotection iii.The proposed Telecommunication infrastructure for Teleprotection shall meet the requirements for Transfer Trip (TT) and DGEO as per section 2.3. iv. Telecommunication infrastructure for Teleprotection w
Slide 28: Amendments Proposal
Amendments Proposal • New Sub-Section: 2.5.3 becomes 2.6.3 Telecommunications Facilities for Real-Time Control and Monitoring i. The DG owner shall provide real time operating information to HONI as specified in section 2.5 either directly from the station(s),as described in item (ii), or from the D
Slide 29: Amendments Proposal
Amendments Proposal • 2.6.3 Telecommunications Facilities for Real- Time Control and Monitoring – Cont’d ii. Real time operating information provided to HONI may be from an Intelligent Electronic Device (IED) at the DG Facility‘s station to HONI‘s control centre using Distributed Network Protocol (D
Slide 30: Amendments Proposal
Amendments Proposal • 2.6.3 Telecommunications Facilities for Real- Time Control and Monitoring – Cont’d (b) where Item (ii) (a) above is not feasible, through a common carrier connection to one of HONI’s Control Centers, with the demarcation point being the Central Office nearest to DG facility’s s
Slide 31: Amendments Proposal
Amendments Proposal • 2.6.3 Telecommunications Facilities for Real- Time Control and Monitoring – Cont’d iii. Real time operating information provided to HONI may be from a SCADA master through HONI‘s SCADA master using Inter-Control Center Communications Protocol (ICCP). iv. Where modems will be us
Slide 32: Amendments Proposal
Amendments Proposal • 2.6.4 Reliability Requirements: 2.5.3.1 becomes 2.6.4.1 Teleprotection The Telecommunication infrastructure shall comply with the following: a) Provide at least an annual average availability of 99.65%. b) Meet the Teleprotection dependability requirement defined as the probabi
Slide 33: Amendments Proposal
Amendments Proposal • 2.6.4.2 Real-Time Control and Monitoring i. The delivery of the real time data at the communication demarcation point shall have a: a. MTBF (Mean Time between Failure) of four (4) years; and b. MTTR (Mean Time to Repair) of seven (7) days. ii. The DG owner may be required to di
Slide 34: Amendments Proposal
Amendments Proposal 2.6.4.2 Real-Time Control and Monitoring – Cont’d iii. If the DG Facility is involved in a Special Protection System (SPS) or automated dispatch, the Telecommunication Mean Time to Repair (MTTR) requirement shall be 24 hours. iv. Upon loss of Telecommunications, the DG owner is r
Slide 35: Summary
Amendments Summary TIR: Section 2.1.6, Page 30 New Line Amendments Proposal Add clarity to the 200 meters length threshold, by adding an additional statement that a Distributed Generator with more than 1 interface transformer shall ALSO require an Automatic Isolation Device TIR: Section 2.4.7, Page
Slide 36: Summary – Cont'd
Amendments Summary – Cont’d TIR: Section 2.7, Page 132 Metering Requirements Amendments Proposal 1. The proposed amendment is to publish the NOP 41 Metering policy on a separate, publically available web address, and to include a URL within the TIR for this policy. TIR :Section 1.0, 1.1, Pages 7,8 S
Slide 37: Summary – Cont'd
Amendments Summary – Cont’d TIR: Section 2.5, Pages 122-124 Control and Telecommunications Requirements Amendments Proposal 1. Move telecommunications requirements from section 2.5 to a new section 2.6 2. Add clarity to the interface protection and alarm monitoring requirements for Class 2 generator
Slide 38: Summary – Cont'd
Amendments Summary – Cont’d TIR: Section 2.5.4, Page 125 SCADA Requirements DGs’< 250kW Amendments Proposal 1. Class 1 DG: SCADA link and modem not required as of today May be requested by Hydro One at a later date 2. In order to support potential monitoring at a later date, a SCADA link and modem w
Slide 39: Feedback Process
Feedback Process • Additional questions and/or feedback regarding the TIR Amendments will be accepted for a period of one week • Please use the following e-mail address to communicate your comments DGConnectionReq@HydroOne.com 39
Slide 40: Next Webinar on Amendments
Next Webinar on Amendments • Hydro One will hold one more webinar on the TIR amendments • Topics for next webinar will include six more Protection amendment items 40
Slide 41: Questions?
Questions? We will answer questions only on today’s Webinar - TIR Amendments For questions outside of the scope of the Webinar, please contact your local Hydro One Account Executive or email your question(s) to DGConnectionReq@HydroOne.com 41