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Load Profiling & Settlement Maine

Load Profiling & Settlement Maine. Maine Specific Requirements - Chapter 321. Load Profiling prior to 5/1/2013 100% AMI Load Settlement 5/1/2013 Differences between CMP & BHE Telemetering Load Estimation Information Access. Chapter 321 - Load Profiling Prior to 5/1/2013.

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Load Profiling & Settlement Maine

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  1. Load Profiling & SettlementMaine LP&S

  2. Maine Specific Requirements - Chapter 321 • Load Profiling prior to 5/1/2013 • 100% AMI Load Settlement 5/1/2013 • Differences between CMP & BHE • Telemetering • Load Estimation • Information Access LP&S

  3. Chapter 321 - Load ProfilingPrior to 5/1/2013 • There will be three customer profile groups: • Residential • Small Non-Residential • Medium Non-Residential • Deemed profiles are allowed but not required LP&S

  4. Chapter 321 - Load Profiling (con’t) • Each T&D utility will sample customers in each profile group • Samples must achieve 90/10 accuracy • T&D utilities shall re-sample no less frequently than every 2 years • Re-sampling requirement may be waived if the current sample maintains reasonable accuracy LP&S

  5. Profiling Methodology Selected • Static Profiles for three profile groups • 12 months, 2 day-types (weekday & weekend) • holidays estimated using weekend profile • Will review profiling accuracy to ensure static profiles are still valid • Deemed profiles will be used for unmetered loads LP&S

  6. 100% AMI Load Settlement Effective 5/1/2013 (CMP Only) • AMI Meters Installed – all customer class • Hourly metered values obtained from MDM • Metered values used for hourly load settlement • Estimates only used when hourly interval data is missing • During resettlement – estimated or missing data is obtained from MDM. LP&S

  7. Chapter 321 - Load Estimation • Actual load will be used for telemetered interval customers • Estimates based on load profiles will be used for all other customers • Class average profiles will be adjusted for individual customers based on a usage factor that reflects the customer’s most current monthly meter readings LP&S

  8. Monday 5 am 6 pm 11 pm Daily Load Profile - ExampleSmall Commercial Customers Day’s Usage: A: 1000 kWh B: 800 kWh C: 500 kWh LP&S

  9. Chapter 321 - Load Estimation (con’t) • Line losses within the T&D local network applied to load based on season & voltage level • The sum of load adjusted for losses and will be compared to actual system load. • Differences are applied to customers in Secondary and Primary voltage level rate classes (CMP Only) (BHE differences applied to profiled accounts.) • All hourly load will be allocated to CEPs LP&S

  10. Chapter 321 - Load Estimation (con’t) • After each calendar month, T&D utilities will re-estimate the hourly load responsibilities of each CEP (CMP Service Territory AMI meter data updated for missing or estimated readings during original settlement period), (BHE Service Territory based on updated meter readings). • Re-estimated hourly energy will be reported to ISO-NE and CEPs LP&S

  11. Initial Daily Settlement LP&S

  12. Reconciled Daily Settlement LP&S

  13. Chapter 321 - Information Access • Each T&D utility will provide to ISO-NE an estimate of each CEP’s hourly load within 37 hours of the end of the day. • The T&D will provide the information to the CEPs no later than two business days after providing to ISO-NE. • Upon request, the T&D will provide to a CEP its customers hourly loads for any day within the previous 12 months. LP&S

  14. Chapter 321 - Information Access (con’t) • Revised hourly energy will be reported to ISO-NE within 85 days after the end of the month. • The T&D will provide the information to the CEPs no later than two business days after providing to ISO-NE. • Load Profiles of each customer profile group shall be made public. LP&S

  15. ISO-NE Requirements • Will follow Market Rules, Manuals & Procedures MRP 18 & Manual 20, 28 & 29 in reporting load • Supplier loads allocated by Load Asset ID • Only valid Load Asset IDs will be used LP&S

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