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1For Training Use Only

New York ISODMNC Reporting

NYISO KCC Conference CenterMarch 31, 2008

Presented by the NYISO Market Training Group


ObjectivesObjectivesParticipants will be able to:

Distinguish between DMNC and PMPCUnderstand the purpose of the DMNC dataIdentify the requirements for DMNC testsDescribe the DMNC data submittal processIdentify noncompliance associated with DMNC submittalIdentify NYISO reference documents


DMNC and PMPCDMNC and PMPC

Dependable Maximum Net Capability (DMNC)

Market Administration and Control Area Service Tariff (MST) Defined Term 2.40

The sustained maximum net output of a Generator, as demonstrated by the performance of a test or through actual operation, averaged over a continuous time period as defined in the ISO Procedures.


DMNC and PMPCDMNC and PMPC

Proven Maximum Production Capability (PMPC)

Not a defined term • referenced in ICAP Manual Attachment D and ICAP

User’s Guide

Maximum production capability of a generator

Used in energy market

DMNC is default PMPC if PMPC not submitted


NYISO Use of DMNCNYISO Use of DMNC’’ss

DMNC RatingIs the ICAP (Installed Capacity) value of a ResourceUsed to determine UCAP (Unforced Capacity) value

• UCAP = DMNC X (1 – EFORD)

Used in Interconnection and Long Term Resource StudiesUsed by Market Monitoring Used by Transmission OwnersUsed for Outage Scheduling


NYISO Use of DMNCNYISO Use of DMNC’’ss

PMPC Rating

Limits Generator energy offers

• Market Information System (MIS)


CheckupCheckup

Select the letter that has a correct statement:

a. DMNC is the Digital Maximum Net Capacity for a generator

b. DMNC is the Dependable Maximum Net Capability for a load serving entity.

c. DMNC is used to determine the amount of generator capacity for the ICAP market

d. DMNC values are NOT used to determine the amount of generator capacity for the ICAP market


CheckupCheckup

Select the letter that has a correct statement:

a. PMPC is used to determine capacity to offer in the ICAP Market

b. DMNC is used to determine capacity to offer in the ICAP Market

c. PMPC and DMNC are used to determine capacity to offer in the ICAP Market

d. None of the above is correct


DMNC Data RequirementsDMNC Data Requirements

Perform DMNC Tests or submit data from actual operation or Resources

Applied to next like capability period


DMNC Test RequirementsDMNC Test Requirements

Operating configuration

Same operating configuration and fuel mix that would be used during peak load conditions for summer and winter


DMNC Test RequirementsDMNC Test Requirements

Data submittals

Submit data in accordance with Installed Capacity Manual Section 4.2

• Attachment D (E-mail preferred. Fax, mail, and courier makes extra work for all, but is allowed.)

• Electronically: ICAP Automated Market SystemICAP Automated Market User’s Guide Sect. 11

No more than 60 days after DMNC Test Period


CheckupCheckup

Select the correct statement from the list below. May a generator use data from a February 20, 2007 DMNC test in

lieu of performing a DMNC test to sell UCAP in the 2008 Summer Capability Period?

a. No, previous test data may never be used in lieu of a testb. No, the February 20, 2007 test was a winter capability test that can

not be used for the summer period c. Yes, the test data is good for one year in either capability period.d. Yes, the test data is from a like period and is less than one year

old.

OctSepAugJulyJuneMayAprMarFebJanDecNov

Winter Capability Period Summer Capability Period


CheckupCheckupSelect the letter that has the correct answer to the question.A generator is being converted from a coal to a biomass unit. Is the

DMNC test performed while on coal valid for the unit after the conversion to biomass?

a. Yes, the plant heat rate while on coal or biomass would be the same, therefore, the unit output will not change for the conversion.

b. Yes, the plant configuration and fuel mix will remain the same except during the peak for the season.

c. No, another test is required because of the change in fuel from the previous test.

d. No, another test is required because a drought has impacted the biomass futures market


Submittal FrequencySubmittal FrequencySubmit DMNC data during each DMNC Test Period

• Summer 6/1 to 9/15• Winter 11/1 to 4/15

A generator may perform additional tests during the DMNC Test Period

Validated and Approved DMNC Rating is Valid for • Balance of current period (If requested and validated by NYISO)• Subsequent like Capability Period


DMNC Time LineDMNC Time Line



Winter DMNC Test Period Summer DMNCTest Period

11/14Summer Test Submittal

Deadline(60 days after end of

test period)

6/14 Winter test submittal deadline

(60 days after end of test period)


Out-of-Period DMNC’s



Winter DMNC Test Period Summer Test Period

Out-of-Period DMNC for Summer

Capability Period

Out-of-Period DMNC for

Winter Capability

Period

Out-of-Period DMNC data

•To begin next Capability Period

•Summer—DMNC data from after 3/1 and prior to 6/1 •Winter--- DMNC data from after 9/1 and prior to 11/1

•Must be verified by a DMNC test within the next DMNC Test Period or penalties will apply


ExampleExample

11/2/07Winter618.59/17/074

5/1/06Summer632.007/22/053

5/1/08Summer621.56/2/20072

5/1/07Summer615.506/1/061

Effective DateSeasonDMNCResults

TestDate

Test

Identify the letter that lists the DMNC test that would be valid for the 2008 Summer Capability Period.A. Test #1 C. Test #3B. Test #2 D. Test #4

OctSepAugJulyJuneMayAprMarFebJanDecNovWinter Capability Period

Winter DMNC Test Period

Summer Capability Period

Summer Test Period


TestsTestsNet of any station service load – for all facilities (ICAP Manual Section 4.2.3)

Resource Specific Requirements (ICAP Manual Section 4.2.2)

Fossil, Nuclear, Hydro

Sustained maximum net output for 4 consecutive hours (top-of-hour to top-of-hour)

• Integrated hourly average


TestsTestsCombustion Turbine

Sustained maximum net output for 1 hour (top-of-hour to top-of-hour) integrated hourly average

Corrected for temperature• Average ambient temperature at time of

Transmission district’s peak load during previous 4 like capability periods

• Posted in NYISO Web Site• Temperature Data

• From approved weather station or recorded auditable device at the generator site


Transmission District PeaksTransmission District Peaks

Transmission District’s seasonal peak during the previous four like-Capability Seasons


TestsTestsCombined Cycle

Sustained maximum net output for 4 consecutive hours• Integrated hourly average at top of each hour

Corrected for temperature• Average ambient temperature at time of Transmission

district’s peak during previous 4 like capability periods• Posted in NYISO WEB Site

• Temperature Data• From approved weather station or recorded auditable

device at the generator site


TestsTests

Intermittent Power (Wind Farms and Solar Arrays)

Nameplate capacity----aggregated in groups


TestsTestsSpecial Case Resources

If distributed generator• Demonstration test of generator output for 1 hour

• Net of auxiliary and station service loads

If not, confirmation of UCAP value sent to Responsible Interface Party (RIP) with registration

• See ICAP Automated Market User’s Guide Section 11.1.2.1 for entering DMNC data


CheckupCheckup

Which of the following facilities requires DMNC data of four sustained consecutive hours:

a. Fossil, Combustion Turbine, Hydrob. Fossil, Hydro, Nuclearc. Combustion Turbine, Hydro, Nucleard. Hydro, Fossil, Gas Turbine


CheckupCheckup

Which of the following facilities requires temperature correction to DMNC data:

a. Combustion Turbine, Combined Cycleb. Fossil, Hydro, Nuclearc. Combustion Turbine, Combined Cycle, Hydrod. Hydro, Fossil


Test Scheduling (TB 029)Test Scheduling (TB 029)

• If >100 MW• Required to notify NYISO Scheduling and

Transmission Owner (TO)• At least 5 days in advance

• Must bid hours for test in DAM• If cancelling—notify NYISO and TO by 1400

hours day before

• If > 25 MW and <99 MW• Required to notify NYISO Scheduling and TO

• At least 2 days in advance

• If < 25 MW• No advanced notification requirement


Test SchedulingTest Scheduling

Generator may request Out of Merit to perform tests

Reference NYISO Tech Bulletins 45 and 29

Energy provided by Generator during testIf scheduled in DAM

• Covered by Bid Production Cost Guarantee

If NOT scheduled in DAM• Paid at Real Time LBMP


Day of TestDay of Test

Day of test—all generators

• Ensure RT hours are scheduled

• Adjust RT bid to allow RT Dispatch (RTD) to schedule Generator to DMNC rating

• Request permission to start test from NYISO through Transmission Owner (TO)

• 3 hours before test starts

• Notify NYISO, through TO, test has • Started and completed


Reporting DMNC DataReporting DMNC Data

Submit DMNC data into the ICAP Market System on the NYISO Web Site

Can enter, maintain or view data onlineICAP Manual Section 4.2 for requirementsICAP User Guide Section 11

Submit ICAP Manual Attachment D formsBy email (preferred), courier, mail or fax


To enter data select “Maintain DMNC/PMPC Results”

Test MP Org

Select season based on the “Date of Test”,not the “Effective Date”

Submitting Test Data

Note: ICAP System was updated to Add a Mitigation Tab


PTID Type:AllInternalExternalSCR

Test Type:AllDMNCPMPC

Generation Types:AllCombined CycleCombustionEnergy LimitedFossil FuelHydroIntermittentNuclear SteamOther

AllYesNo


Use the filter above to access a list of relevant units.


PTID Name:Drop down list of all PTIDs associated with Supplier

Effective Date – select first day of month the test is to be effective using calendar icon.•Can not be same day as test date•Cannot be for month spot market has already run•Must be >the system date

Test Type:DMNCPMPC Date of Test

Begin Hour

4 yr. Avg Amb temp for peak day & hr of like season for TO where Gen resides (Combustion & Combined cycle only)

Previous post test rating•Auto defaulted value

Test Temp at top of hr at start of test at gen site (Combustion & Combined Cycle only)

MW output to grid•Integrated hourly average starting at top of each required hour

Rating determined using manufacturer’s temp adjust (Combustion & Combined cycle only)•Temp adjust hourly readings then average them

Remarks

Actual DMNC rating•If> pre-test----red•If out of period----blue


“Add DMNC/PMPC” allows input of DMNC data.


Submitting Attachment DSubmitting Attachment D

Enter into ICAP System same data as entered/shown in Attachment D

Additionally enter:Test A, B, C---only Fossil and Nuclear Generators

A—Over pressureB—Top Feed Water Heater O/SC---Exceptions to Procedures Explained in Remarks section

Submit by email (preferred), fax, mail, courier or fax to NYISO Auxiliary Market Operations. See Attachment D Instructions page in the file.


Submitting Attachment D FormsSubmitting Attachment D FormsFormsForms


FormsFormsSubmitting Attachment D FormsSubmitting Attachment D Forms


NYISO Verifies Data NYISO Verifies Data

NYISO Market Monitoring and Performance (MMP) reviews submitted DMNC data for completeness

• Determined within 10 days

NYISO MMP “validates” data30 day validation period

• If submitted >45 days prior to deadline• If< 45 days of deadline-----45 day review period

NYISO Auxiliary Market Operations “approves”submitted DMNC data in ICAP System

after MMP provides validation documentation


CheckupCheckup

For an ICAP System submittal, the date entered in the effective date field is the:

a. The start date of the testb. The completion date of the testc. The current test period end date d. None of the above


CheckupCheckup

For the Combined Cycle and Combustion Units, the 4 year average temperature for the peak day and hour of the like season for the TO where the generator resides would be entered into which field?

a. Avg Amb Temp (&degF)b. Pre Test Rating (MW)c. Test temp (degF) d. None of the above


ICAP System Calculations

The “Days to Expiration” field is color coded (green > 30 days; yellow between 30 and 1; red = DMNC Rating expired)

ICAP System sets the Expiration Date when the DMNC Rating is Approved.

Status•Approved by NYISO•Rejected by NYISO•Undecided—yet to be acted on

Expiration Date - Date the rating will expire, at 11:59:59 PM

Select View Monthly DMNC/PMPC Days to Expiration –Days remaining before the test will expire


DeficienciesDeficiencies

Implications of not reporting on time Penalty may apply – Market Administration and Control Area Services Tariff (MST) Article 5.12.12 and ICAP Manual Section 6.1

If in-period DMNC data does not meet or exceed out-of-period DMNC rating used to start period

Penalty may apply – MST Article 5.12.8 and 5.14.2

Exemptions from performance and regulation penalties

Reference Special Settlement Rules Tech Bulletin 155


Planned UpdatePlanned Update

Planned for Winter 09-10 Capability Period

Deliverability Limits

• Capacity Resource Interconnection Service (CRIS)


Planned UpdatePlanned Update

CRIS Adjusted DMNC Calculations:

Summer

MIN (Summer CRIS CAP X Summer DMNC)

Winter

TRUNC (Winter CRIS % X Winter DMNC)


ReferencesReferencesMST Tariff Article 5.12 - Requirements Applicable to Installed Capacity SuppliersNYISO Installed Capacity Manual

Section 4 Installed Capacity Requirements Applicable to Installed Capacity SuppliersAttachment D: DMNC Audit Forms, the Procedure to Adjust a PMPC and Weather Adjust DMNC data

ICAP User’s GuideSection 11 Maintain and View DMNC/PMPC dataSection 14.6 Data dictionary, Uploads/Downloads

NYISO ICAP Web site---ICAP market softwareTech Bulletin 029 Scheduling and Reporting Generator Dependable Maximum Net Capacity (DMNC) Tests

Describes DMNC test scheduling requirements


ReferencesReferences

NYISO Market Participants Users GuideSections 6 and 7 describe Updating Generator Physical Parameters and bidding above DMNC

TB 155 Special Settlement Rules for Generators Conducting Certain Scheduled Steady state

Describes test that exempt Generators from performance penalties

TB 045 Out of Merit GenerationRequesting Out of Merit generation for DMNC testing

TB 126 NYISO Distribution of Resource Capacity and Reactive Power Capacity data to NYCA Transmission Owners

Describes NYISO providing DMNC data to Transmission Owners


ReferencesReferences

Tech Bulletin 047 Updating Generator Physical Parameters in the Market Information System (MIS)

Describes process for updating Generator parameters


SummarySummary

DMNCPMPCPurpose of dataRequirements for submittalsData submittal processNoncompliance


The New York Independent System Operator (NYISO) is a notThe New York Independent System Operator (NYISO) is a not--forfor--profit profit corporation that began operations in 1999. The NYISO operates Necorporation that began operations in 1999. The NYISO operates New Yorkw York’’s bulk s bulk electricity grid, administers the stateelectricity grid, administers the state’’s wholesale electricity markets, and provides s wholesale electricity markets, and provides

comprehensive reliability planning for the statecomprehensive reliability planning for the state’’s bulk electricity system.s bulk electricity system.____________________________________________________________________________________________________________________

www.nyiso.comwww.nyiso.com

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