Documentation - Initial
Compile and Complete “Initial” Metering Package 180 Days Before
Initial Synchronization.
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Metering Scheme Overview
Metering One-line Diagram with Point of Receipt (POR)
Metering System 3-line Diagram
Site Location on a Map or Directions
Page 1
Metering Documentation
Metering Packet:
• Metering Scheme Overview
– Allows engineers to validate meter setup and
site layout per the IFC drawings.
• Site Location / Directions (Map)
– List GPS coordinates, site address, driving
directions, and map to each site
Page 2
Metering Documentation
Metering Packet:
(Use IFC drawings instead)
• Metering 1-Line Drawing with POR (See Direct Telemetry BPM
Section 18 for required information to determine POR)
– Used to determine loss compensation for meters
• Metering Communication Drawing
– Provides overview of the network topology
– RIG Communication Block Diagram is acceptable
• IFC Drawings with CAISO revenue meter location(s) will be the
only acceptable drawings after DB59.
Page 3
Meter Installation
Installation of CAISO Revenue Metering:
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Must be an CAISO Approved Meter and the Initial Metering
package submittal must be approved. Approval shall come
from the CAISO Meter Engineering.
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Meter installation may be performed by a qualified electrical
contractor or one of the approved turnkey metering
companies listed on CAISO.com:
http://www.caiso.com/Documents/CompaniesDoingTurnkeyIS
OMeterInstallations.pdf
Page 4
Revenue Metering
Site Equipment:
– Revenue Meter
– Current Transformer
– Voltage Transformer
– Router
– Communication Circuit
Page 5
Revenue Metering – Roles & Responsibilities
Who installs CAISO Revenue Meters?
– CAISO Metering Inspector or a qualified electrical contractor may
install the Revenue Meter socket and supporting equipment.
– CAISO Metering Inspector must program, test, and document
CAISO Metering Facilities.
– Resource owners shall contract a Meter Services company to
provide all aspects of CAISO metering test and maintenance.
– CAISO Approved Meter Services companies found at:
http://www.caiso.com/docs/2000/09/13/200009131136396933.pdf
Page 6
Metering – Roles & Responsibilities
Resource Owner will:
– Own the CAISO Metering Facilities
– Maintain the CAISO Metering Facilities
– Ensure the accuracy of the meter data
– Submit the original prints and CAISO Metering Certification Form to
CAISO for review and approval
– Contract a CAISO Authorized Inspector to verify Metering Facilities
and submit Site Verification Forms to CAISO
Page 7
Pre-Validation
Test Meter(s) and perform Site Inspection by an CAISO Certified
Inspector.
The certification must be performed by a CAISO approved
company from the following list:
http://www.caiso.com/Documents/ApprovedISOMeterInspectionCo
mpanies.pdf
Page 8
Final Documentation
Compile and Submit “Final” Metering Package
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Includes all documentation required within the “Initial” Metering
Package plus
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CAISO Metering Verification
Site Verification Forms
Meter(s) Program(s)
Meter Calculation Worksheet
Metering Communications Drawing
Compensation Calculation to POR
Meter Service Agreement Schedules 1, 2, and 3
Must be completed and received by CAISO 30 days prior to initial
synchronization to the grid
Metering certificate shall be final or the meter will not be validated
Page 9
Metering Documentation
Metering Packet:
• Metering Calculation Worksheet
– Shows methodology for
calculating loss compensation
for meters
• Compensation Calculation to
POR
Page 10
Metering Documentation
• CAISO Metering
Certification Form
– Needed to
configure MV90 for
collection and
processing of
Revenue Quality
Meter Data (RQMD)
Page 11
New Site
CAISO Metering Certification Form
• Triggers the start of the process
• Contains necessary setup
information to interrogate and
validate meter data
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Device ID
Meter Type (Manufacture)
Communication Information
Multipliers
Page 12
Certification Form – 12 Key Fields
1
3
2
5
4
6
7
8
9
10
11
12
*Missing or inaccurate information will create incorrect
values and/or processing delays in settlements
Page 13
Certification Form: Resource & Meter
1
2
1. Effective Date
– MDAS works with Model & Contacts Group to establish when the
unit officially “Sync” to the Grid (Start Date)
2. CAISO Device ID
– Unique 7 Digit Number issued by Meter Engineering BEFORE
programming and/or installation
Page 14
Certification Form: Facility & Market
3
4
3. Site name and Address
– Name of Facility and Physical Address
4. CAISO Resource ID
– Market Resource assigned by CAISO
Page 15
Certification Form: Billing (Load)
5
5. Load/Standby Provider
– Company that bills for load, or provides standby power
– If blank, CAISO will submit load to Settlements on behalf of
ISOME
Page 16
Certification Form: Facility
6
6. Point of Delivery MW
– This is now known as the Point of Receipt (POR) in the Metering
BPM
– Metering uses this information to set high limits in MV90 to
prevent erroneous data being sent to settlements
Page 17
Certification Form: Communication
7
7. Meter Manufacturer
Provides information related to the proper Transfer Interface Module
(TIM) needed for meter interrogation
Page 18
Certification Form: Displays
8
8. Display Constant
– Meter multiplier
– Use to support “Meter” Data Validation based on Start and Stop
Reads
* * * * * * * * * METER DATA * * * * * * * * * *
CHAN METER # UOM
START
STOP
NET
MULTIPLIER
TOTAL
1 88651
KWH
405.40
414.25 8.85
1000.000
2 88651
KVARH
484.59
494.37 9.78
1000.000
3 88651
KVARH
1007.50
1007.50
.00
1000.000
4 88651
KWH 200264.63 200264.63
.00
1000.000
8850.0
9780.0
.0
.0
Page 19
Certification Form: Communication
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9. Type (Meter model number)
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Provides information related to the proper Transfer Interface
Module(TIM) needed for meter interrogation
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TIMs are considered the language of that given meter
Page 20
Certification Form: Communication
10
Polling Address/Port
– IP Address and Port number assigned to meter
– Most common section which create delays the collection and
processing of meter data
– The IP Address and Port Number are required to be completed
on the certification form at -5B of the External Cutoff Date.
– Resource will be moved to the next FNM build if the IP Address
and Port Number is not given by the deadline.
Page 21
Interval Data Information
11
11. Primary Ke
– Recorder Pulse Multiplier
– Use to support “Meter” Data Validation based on Recorder Data
CHAN
1
2
3
4
* * * * * * * * * RECORDER DATA * * * * * * * * *
DIFF
%DIFF TOLTYPE PULSES MULTIPLIER
-7.1
.08
D
12133
.730000
-3.5
.04
D
13402
.730000
.0
.00
D
0
.730000
.0
.00
D
0
.730000
TOTAL
8857.1
9783.5
.0
.0
Page 22
Interval Data Information
12
12. MV-90 Sequence (Encoder)
– Retrieves data from designated Displays
– Mapping of Information (Start & Stop Reads) related to the given
“Sequence”
– Needed for Validation
Page 23
Certification Form: Communication
CAISO Metering Certification Form
• Missing, Inaccurate information, or
communication problems will “stop” the
process needed to validate the data.
• It is up to the “owner” to resolve all issues in
order to resume progress and to contact
CAISO meter engineering to verify that all
required data has been received.
Page 24
Example of Metering Packet Check-off List
• Final Metering Package –
which contain “Initial” and
“Verification and Validation”
sections are due 30 days
prior to synchronization to
the grid