Brewster Division April 2018 Municipal Officials Meeting www.nyseg.com 1
Table of Contents Topic Slide System Overview 3 NYSEG Reliability Targets 4 Major Contributing Causes 5-6 Vegetation Management 7-8 5 Year Trim Cycle 9-10 Worst Performing Circuits 11 Routine Maintenance Programs 12-17 2018 Automation Planned Work 18 2018 Resiliency Plan 19 Capital Improvements 20-24 Future Initiatives 25 www.nyseg.com 2
System Overview New York State Electric & Gas serves 890,000 electric and 264,000 natural gas customers across New York State Brewster Region is 531 square miles and serves approximately 86,379 electric customers The electrical system is comprised of; 32 substations; 15 Transmission lines; 95 distribution circuits - 2,399 circuit miles, (1,630 overhead miles, 769 underground miles) www.nyseg.com 3
NYSEG Reliability Targets 2017 Customer Average Interruption Duration Index (CAIDI) target CAIDI is the average outage duration that a customer would experience. CAIDI is calculated by taking the sum of all customer interruption durations and dividing it by the total number of customer interruptions. Brewster Division had a goal of 2.25 and ended the year at 1.86 2017 System Average Interruption Frequency Index (SAIFI) target SAIFI is the average number of sustained interruptions per consumer during the year. SAIFI is calculated by taking the total number of customer interruptions and dividing it by the total number of customers served. Brewster Division had a goal of 1.70 and ended the year at 1.80 www.nyseg.com 4
Major Contributing Causes - Motor Vehicle Accidents A major contributing cause of outages in 2017 is Motor Vehicle Accidents (3 rd Party) 23.1 % of all interruptions www.nyseg.com 5
Vegetation Management Trees are one of the leading causes of power interruptions and power quality issues. NYSEG routinely prunes and removes trees under and adjacent to power lines for both safety and reliability. www.nyseg.com 6
Vegetation Management Brewster Division is on a 5 year trim cycle, and trees remain a leading cause of outages 49.1% Trees - 38% Out ROW / 11% In ROW Continued focus on specification enforcement and individual customer outreach Develop new partnership strategies with the communities to strengthen the Right Tree Right Place philosophy 45,000 40,000 35,000 30,000 25,000 20,000 15,000 10,000 5,000 0 450 400 350 300 250 200 150 100 50 0 Customers Served Westchester Putnam Dutchess Total Refusal Customers Per County Westchester Putnam Dutchess Customers Served Total Refusal Customers www.nyseg.com 7
Vegetation Management Why are trees the top cause of outages and interruptions if we re on cycle? One refusal has an impact on numerous customers and potentially causing impact to several towns at the same time Improper clearance leads to vegetative growth contact prior to the next scheduled maintenance year Overly mature tree population coupled with granite bedrock leads to more tree failure and uprooting Emerald Ash Borer is here and will continue to have a significant impact on safety and reliability in years to come. Refusal to trim or cut trees affects customers impacted: 49.1% of outages are caused by trees Right Tree Right Place philosophy sharing Tree planting guidance and awareness NYDEC- Cost Share Grants for New Plantings: http://www.dec.ny.gov/lands/49 57.html USDA Natural Resources Conservation Service Tree City USA www.nyseg.com 8
5 Year Trim Cycle Substation, Circuits 2016 2017 2018 2019 2020 Total Trim Mileage=1630 271.02 277.7 364.5 369.5 347.54 Adams Corners 411 Cantitoe 282 Amenia 153 Adams Corner 412 Amawalk 449/451/454 Adams Corners 413 CHU-Long MT Rd Bedford Hills 462 Amenia 154 Bedford Hills 227 Amawalk 453 CHU-Pleasant Ridge Rd Crafts 424 Bedford Hills 225 Cantitoe 283 Cantitoe 497 CHU-Separate Rd Cross River 469 Bedford Hills 463 Cantitoe 498 Carmel 501 CHU-White Pond Rd Cross River 470 Dingle Ridge 277 CHU-Chapman Rd Carmel 502 Crafts 422 Goldens Bridge 417 Goldens Bridge 418 CHU-Long Hill Rd Carmel 503 Crafts 423 Goldens Bridge 420 Haviland Hollow 426 CHU-Sylvan Beach Rd CHU-RT 301 Croton Falls 446 Goldens Bridge 421 Mohansic 404 CHU-Tower Hill Rd Croton Falls 514 Dover Plains 494 Kent 176 Mohansic 405 Cross River 468 Pawling 166 Pawling 509 Kent 526 Mohansic 406 Croton Falls 515/516 Pawling 508 Pound Ridge 456 Peach Lake 249 Peach Lake 250 Dingle Ridge 278 Pound Ridge 457 Putnam Lake 485 Putnam Lake 486 Sylvan Lake 478 Golden Bridge 414 Tilly Foster 439 Tilly Foster 437 Sylvan Lake 481 Sylvan Lake 480 Harlem Valley 105 Tilly Foster 438 Teakettle Spout 489 Ten Mile River 443 Haviland Hollow 427 Tilly Foster 441 Union Valley 431 Ten Mile River 444 Katonah 448/450/452 Tilly Foster 442 Union Valley 432 West Patterson 474 Kent 175 Union Valley 433 Kent Cliffs 291/292 West Patterson 475 Monhansic 403 Pawling 165 Pound Ridge 455/458 Putnam Lake 484 Streetlight_11 STI Teakettle Spout 490/491 www.nyseg.com 9
5 Year Trim Cycle County, Town 2016 2017 2018 2019 2020 Dutchess County Dover Dover Amenia Amenia Beekman Pawling Pawling Beekman Beekman Dover Dover Dover Pawling Putnam County Brewster Brewster Carmel Brewster Kent Carmel Carmel Kent Patterson Mahopac Mahopac Mahopac Mahopac Putnam Valley Patterson Putnam Valley Putnam Valley Patterson Southeast Putnam Valley Southeast Westchester County Bedford Bedford Bedford Bedford Bedford North Salem Somers Lewisboro North Salem Lewisboro Pound Ridge North Salem Yorktown North Salem Somers Pound Ridge Pound Ridge Somers Somers Yorktown www.nyseg.com 10
Worst performing circuits 2016 and 2017 2016 Substation - Circuit Major Cause(s) Solution Cantitoe 497 Tree Outside of ROW, Tree Inside of ROW Trimmed late 2016 Carmel 501 MVA's/ Carmel substation fire Breakers replaced post fire Crafts 423 Tree Outside of ROW, Tree Inside of ROW Trimmed late 2017 Pound Ridge 455 Tree Outside of ROW, Tree Inside of ROW Extensive trim post storm Riley/Quinn Union Valley 433 Operational Errors Review relay settings and implement upgrades 2017 Substation - Circuit Major Cause(s) Solution Adams Corners 411 Crafts 423 Crafts 424 Tree Outside ROW, Equipment Failure (substation breaker failure) Tree Outside ROW, Tree Inside of ROW Tree Outside ROW, Tree Inside of ROW Station Breaker replaced 2017, 4 new reclosers to be installed, 3 communication upgrades to reclosers 2018 Trimmed late 2017 with invasive vine focus, 2 new reclosers to be installed, 1 communication upgrade to reclosers, settings changes to reclosers 2018 New fusing to truncate outage zone in tree prone area 2017, 2 new reclosers to be installed, 2 communication upgrades to reclosers 2018 Goldens Bridge 414 MVA's/ Tree Outside ROW 2 new reclosers to be installed 2018 Sylvan Lake 478 Tree Outside ROW, Lightning Substation Breaker replacement (new communication) 2018, 7 new reclosers to be installed 2018 www.nyseg.com 11
Routine Maintenance Programs Distribution and Transmission Inspection Programs: Transmission Wood Pole and Above Ground Inspections on a 10 yr cycle based on industry best practice for this type of wood pole maintenance. Distribution and Transmission line inspections on equipment are on a 5 yr cycle based on industry best practice Distribution Infrared Program Stray Voltage Transmission Infrared Inspection via Helicopter Year/Units # Circuits (% of Total Circuits) Units # Circuits (% of Total Lines) 2016 50 (53%) 21,888 15 (100%) 2017 50 (53%) 16,995 15 (100%) 2018 50 (53%) 19,625 15 (100%) Distribution and Transmission Substation Programs (Annually): Substation Battery Maintenance Transformer Oil Analysis Infrared Substation Equipment Testing Comprehensive Substation Inspection (bi-monthly) Vegetation Abatement Additional Substation Programs (Doble Testing) Distribution Type Transformers on a 12 year cycle based on industry best practice- 2 this year Substation Circuit Breakers on a 6 year cycle based on industry best practice - 27 this year Transmission Type Transformers on a 6 year cycle based on industry best practice 6 this year www.nyseg.com 12
Routine Maintenance Programs and Immediate Impact 2017 Brewster Avoided Outages www.nyseg.com 13
2018 Transmission Maintenance Work - Replacements Towns Crossarms Insulators Poles Amenia 12 16 Bedford 40 Carmel 13 10 20 Dover 10 6 Kent 2 Lewisboro 58 3 North Salem 20 1 9 813L South Rd. Pawling Patterson 20 9 2 Pawling 9 16 1 Pound Ridge 27 2 Putnam Valley 4 Somers 2 Southeast 17 2 13 Total 232 40 72 803L Magnetic Mine Rd. Southeast www.nyseg.com 14
2018 Distribution Maintenance Work Repair/Replace TOWNS CONDUCTOR CUT OUT GROUNDS GUY WIRE HAND HOLE INSULATOR LA POLE PRI RISER SECONDARY /SERVICE TRANSFORMER XARM BEDFORD 3 2 1 5 8 1 BEEKMAN 1 CARMEL 2 5 6 1 25 51 1 2 5 6 DOVER 40 4 1 7 1 1 2 5 KENT 3 6 11 8 36 3 5 LEWISBORO 8 3 11 21 6 2 19 15 1 3 6 6 NORTH SALEM 1 2 3 6 2 1 2 PATTERSON 3 3 3 1 2 2 PAWLING 2 1 49 16 2 15 1 1 1 POUNDRIDGE 2 12 10 1 22 10 2 2 3 3 PUTNAM VALLLEY 1 9 2 21 2 SOMERS 1 4 4 1 4 22 2 6 4 SOUTHEAST 1 4 3 3 YORKTOWN 1 7 7 4 26 3 9 Total 22 9 142 99 6 13 117 198 7 13 24 46 www.nyseg.com 15
2018 Substation Distribution Maintenance Work Substation Automation We are performing upgrades in the automation system of the following substations. These upgrades will provide more visibility of the stations to the SCADA system. The following substation upgrades will be completed in 2018. a.kent Cliffs b.putnam Lake c.cantitoe d.amawalk Breaker Replacement The followings breakers in the table to the right are scheduled to be replaced in the Brewster division. Amenia - substation rebuild 1. Install a new substation transformer 2. Low-side medium voltage GIS 3. Low-side capacitor bank and accompanying equipment 4. Convert 10 miles of 4.8kV circuits 153 & 154 to 13.2kV. Substation Name Carmel Croton Falls Croton Falls Croton Falls Croton Falls Croton Falls Croton Falls Croton Falls Croton Falls Croton Falls Croton Falls Croton Falls Croton Falls Golden Bridge Golden Bridge Golden Bridge Golden Bridge Golden Bridge Golden Bridge Golden Bridge Golden Bridge Golden Bridge Kent Cliffs Kent Cliffs Sylvan Lake Sylvan Lake Sylvan Lake Circuit Breaker CARMEL-99202 CROTON FALLS-2B-52 CROTON FALLS-44652 CROTON FALLS-51452 CROTON FALLS-51552 CROTON FALLS-51652 CROTON FALLS-80252 CROTON FALLS-80352 CROTON FALLS-81052 CROTON FALLS-81252 CROTON FALLS-81352 CROTON FALLS-T5-52 CROTON FALLS-T6-52 GOLDEN BRIDGE-1B-42 GOLDEN BRIDGE-2B-42 GOLDEN BRIDGE-41642 GOLDEN BRIDGE-41742 GOLDEN BRIDGE-41842 GOLDEN BRIDGE-41942 GOLDEN BRIDGE-42042 GOLDEN BRIDGE-42142 GOLDEN BRIDGE-T2-42 KENT CLIFFS-29182 KENT CLIFFS-29282 SYLVAN LAKE-47812 SYLVAN LAKE-48012 SYLVAN LAKE-48112 www.nyseg.com 16
2018 Transmission Substation Maintenance Work Pawling 115 kv Capacitor Bank Installation Dover 46 kv Capacitor Bank Installation Croton Falls - Oil Breaker Replacement of all 46 kv and one 115 kv Carmel 115 kv Oil Breaker Replacement Carmel Finish the transmission line 807 Project Upgrade from 46 kv to 115 kv Ten Mille River New breakers installation for MTA www.nyseg.com 17
2018 Automation Planned Work Towns Capacitors Regulators Reclosers Amenia 4 Bedford 1 4 Beekman 1 11 Brewster Village Carmel 12 Dover 1 2 Katonah 1 Kent 2 3 Lewisboro 2 4 North Salem 3 5 Patterson 6 Pawling 2 7 Poundridge 7 Putnam Valley 3 14 Somers 7 Southeast 3 Yorktown 3 1 1 TOTAL 8 15 87 Automation of capacitors and regulators provide better voltage regulation. Automation of reclosers provide reduced outage durations, through remote switching capabilities. www.nyseg.com 18
2018 Resiliency Plan Distribution System: Four areas of Focus Poles - Install class 3 poles Conductor Install Poly Coated Conductor/ Spacer Cable/Aerial Bundled Cable Hardware Install 3/8 guy wire, Vise top insulators System protection - Install fuses or cutouts on all transformer installations Note: Poles, Conductor and System Protection focus areas have been implemented in the Brewster division for several years. Poly coated wire and 3/8 guy wire has been used for years. www.nyseg.com 19
Underground Capital Improvements 2018 2019 2020 2021 2022 Replace 30 Junction cabinets Replace 2 Junction cabinets Replace 8 Single Phase Transformers Replace.5 Miles of primary underground on Golden Bridge 420 Replace 1.7 Miles of primary underground on Croton Falls 516 Replace 20 Single Phase Transformers Replace 20 Single Phase Transformers Inject.75 Miles of 3 Phase Primary on the Teakettle 490 Replace.6 Miles of primary underground on Croton Falls 514 Replace 2 Switch Gears Replace 1 Mile of primary underground on Golden Bridge 420 Subdivisions with Underground Improvement Plan Heritage Hills Wild Oaks Dalton Farms Oakridge The Willows Chelsea Cove Greenbriar Primrose Farms Fox Run Indian Hill Replace 1 Mile of primary underground on Croton Falls 514 www.nyseg.com 20
Capital 5 Year Plan NYSEG Project Title: Line of Business: Responsible Group: Investment Classification: Project Sponsor: Dingle Ridge 2 nd Bank and 13.2kV Conversion Electric Projects System Capacity Distribution Planning Total Project Cost: $12,712,918 2013 2014 2015 2016 2017 $0 $37,710 $157,876 $273,408 $569,812 2018 2019 2020 2021 2022 $1,311,963 $10,362,149 $0 $0 $0 Project Description: Dingle Ridge Upgrade the current 5MVA bank substation to a new Greenfield substation with 2 transformer banks. Convert 9.6 miles of 4.8KV circuits 277 and 278 to 13.2kV. www.nyseg.com 21
Capital 5 Year Plan NYSEG Project Title: Line of Business: Responsible Group: Investment Classification: Project Sponsor: Line 807 115kV Conversion Project Electric Projects Reliability Risk System Planning Total Project Cost: $22,605,775 2013 2014 2015 2016 2017 $6,760,174 $2,646,423 $4,413,869 $1,845,198 $2,903,847 2018 2019 2020 2021 2022 $3,571,721 $464,543 $0 $0 $0 Project Description: Convert the existing Carmel to Wood Street to Katonah Line #807 from 46kV to 115kV operation. This line is already constructed to 115kV standards; therefore, the project is primarily substation modifications. A new 115kV line terminal and two new 115kV breakers will be added at Carmel Substation, two new 115kV line terminals will be added at Wood Street Substation, and a new 115kV line terminal and three new 115kV breakers will be added at Katonah Substation. www.nyseg.com 22
Capital 5 Year Plan NYSEG Project Title: Line of Business: Responsible Group: Investment Classification: Project Sponsor: North Brewster Reinforcement Electric Projects Mandatory Business Development Total Project Cost: $18,575,007 2013 2014 2015 2016 2017 $0 $0 $0 $44,107 $2,505,050 2018 2019 2020 2021 2022 $11,440,658 $4,585,191 $0 $0 $0 Project Description: At Amenia Substation, the project will install 1 46/13.2kV, transformer & accompanying equipment and convert 10 miles of the existing 4.8 kv circuits 153 and 154 to 13.2 kv. At Dover Plains Substation, the project will install 2 46kV capacitor banks and accompanying equipment. At Pawling Substation, the project will install 2 115kV capacitor banks and accompanying equipment. www.nyseg.com 23
Capital 5 Year Plan NYSEG Project Title: Line of Business: Responsible Group: Investment Classification: Project Sponsor: Pawling-Ten Mile River New 115kV Line (Line 825 Rebuild) Electric Projects Reliability Risk System Planning Total Project Cost: $31,605,000 2013 2014 2015 2016 2017 $0 $0 $0 $0 $0 2018 2019 2020 2021 2022 Beyond 2022 $0 $0 $3,160,500 $3,160,500 $6,321,000 $18,963,000 Project Description: Build a 115kV line from Pawling to the vicinity of Ten Mile River Sub. www.nyseg.com 24
Future Initiatives LED Street lighting Municipalities have been notified of the PSC approval of our tariffs for implementation of converting cobra head style streetlights to LEDs NYSEG filed specific LED street lights for approval by the PSC. Approval expected 7/2018 Pending PSC approval of specific LEDs, lights will be ordered and conversions will be scheduled with participating municipalities. Municipalities are being scheduled based upon when they committed to the conversion and geographical considerations. Installation of lights will start in 7/2018 4 responses from the Brewster area: Lewisboro, Southeast, Patterson and North Salem. NY Advanced Metering Infrastructure (AMI) (Smart Meters) Maine (100%) CT (64%) NY (Pending approval from NYPSC) NYSEG & RG&E submitted a filing with the NYPSC for AMI deployment in 2018-2022 of 1.8 million electric and gas meter installations in NY ~$500M investment www.nyseg.com 25
Questions? www.nyseg.com 26