DSU Commissioning and Testing Process

DSU Joint Grid Code Working Group2nd September 2014

Content

Review DSU feedback

DSU Capacity Certified

DSU signals and testing process

Purpose of Grid Code Testing

Roles of the DSU & TSO

Tests, scheduling & witness requirements

Operational Certificate

Known Issues

DSU Commissioning and Testing Process – Feedback from industry

• DSU said– It took time to get up to speed with the process. Going forward it should

be easier– Templates beneficial– Site witness isn’t an issue so long as there isn’t a significant lead time

scheduling– Needs to be more flexibility allowing additional sites to be added to live

application• Propose cut-off point

– Scaling of IDS to be considered within the process i.e. sites <100kW to be considered differently

– Will this process be adopted for larger scale roll out of DSM?(long term)

DSU Commissioning and Testing Process – Feedback from industry

• TSO response– Use of existing process’ and systems within TSO for DSU application– TSO flexibility to work with new entrants to address comments or queries– TSO transparent in relation to testing requirements and timelines. DSU to make

decisions on application based on TSO requirements– Testing should be scheduled on the basis that an EirGrid witness will be onsite

which will be confirmed D-1– On site TSO witness experience has benefited feedback to Grid Code

Modification proposals as applicable– TSO decision making process highlighted should applications be revised, the

process begins for which the timelines reapply. DSU’s to be more decisive at application stage

– Existing process including scalability factor applied can be reviewed again in the future

DSU Capacity Certified

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DSU Capacity Certified

Certified (MW) No of DSU's

DSU Market Participants (by capacity)

Manufacturing

Mining/Quarry

Food/Storage

Pharmaceutical

Hospital/Education

Services Agri Water

~80 IDS

DSU Connection Process

Status Update1-2 slides

DSU Connection ProcessE

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Complete?

Customer Application

Applciation Review

Signal List

No – Revert to customer

Yes

EirGrid & Customer Signoff

Accept Offer?

No – Update Proposal

RTU Invoice Payment

Yes – Finance issue invoice

EDIL Pack

RTU Installation

Test Procedures

Send signal list to ESB Telecomsvia EMS team

Grid Code Testing

Commercial Operation

Test Requirements

Yes – Issue Op Cert

Grid Code Compliant?

RTU Proposal

EMS and EDIL set up

No – Repeat Tests

Signals and Testing Process

Status Update1-2 slides

Purpose of Grid Code Testing

Ensure SAFE, SECURE and ECONOMIC operation of the Power System

Demonstrate COMPLIANCE with the Grid Code– Issue Operations Certificate.

Test TRUE capabilities of the unit at Commissioning stage and throughout lifetime of unit

– Contract for future Ancillary Services.– Address non-compliance via remedy and/or

derogation.

Assess the level of IMPACT on other users and the PERFORMANCE of the Power System

Role of a DSU (1)

1. Submit complete application form1. New DSU connections.

2. New Individual Demand Sites (IDS) being included within an existing DSU.

3. Changes in operating characteristics of any IDS or DSU.

4. IDS switching DSU. (Switchover form to be submitted in addition).

5. Each application is built on the last Operational Certificate issued.

6. One application processed at a time.

2. Notify the DSO of application and testing agenda

3. Complete Market Registration (60 BD)

4. For new connections, the DSU will propose location of TSO RTU. Arrange with OSP site survey and installation (allow 10 weeks)

Role of a DSU (2)

5. For new connections, DSU control centre will install and organise training for EDIL. (allow 6 weeks)

6. Complete signalling requirements and submit relevant RTU Cert (wiring / pre-grid code check)

7. Submit test procedures and agree with TSO at least 10 BD in advance of testing

8. Organise Grid Code Testing

9. Completion of Test Reports with Test data

DSU Information Requirements

1. All connection application information

2. Operational and Registered Data based on tested values

3. IDS with Generators synchronised to system1. Data Sheet.

2. Picture of Name Plate Rating of Generator.

3. Statement from OEM regarding frequency capability.

4. Specification of method of aggregation of SCADA for each IDS addressing CC.12.6 of Grid Code

5. Signal Completion Certs (wiring / pre grid code checks)

6. Signed Test Procedures & SCADA data for tests (1BD)

7. Test reports (10BD)

8. Submit derogations as appropriate (10BD)

9. Obtain Operational Certificate.

Role of EirGrid OSP team

1. Assess DSU application

2. Develop Signal Lists requirements

3. Arrange RTU Installation, EDIL Registration and Training, EMS Database setup

4. Co-ordination of Grid Code Compliance testing.

5. Agree Test Procedures

6. Approve Test reports

7. Recommend for Operational Certificate

8. Handover to Performance Monitoring and Customer Relations

Signal List Template available at http://www.eirgrid.com/media/DSU_SignalListTemplate.xlsx

Site TestsIDS communications check to NCC

– Typically 15 minute test– Real values used for signal check end to end from IDS-DSU-RTU-NCC– Communications issues are addressed in advance of aggregate test– EirGrid Witness attends site

Aggregate MW capacity Test– Existing Certified IDS are not included within this test– Carried out when all IDS are tested and proved back to NCC– IDS should test to max capability– Completed for IDS changing Operating Characteristics – Demand 1 hour in advance of test and during test will account for IDS MW response

values– Total IDS MW response values are added to get DSU MW response values– Minimum MW sustained during Max Down time ≥120mins to be demonstrated – Minimum off time (≤120mins), and Minimum down time (≤30mins) are demonstrated

after ≥ 120min test– Ramping (≥ 1.67% DSU cap) demonstrated during this test

Test Procedure Templates available at:http://www.eirgrid.com/media/Signals_CommunicationsCheckToNCC_IndividualDemandSite.docxhttp://www.eirgrid.com/media/DSU_TestProcedure_AggregateMW_Capacity.docx

Test Scheduling Calendar used to schedule testing (Mon-Fri 9am-5pm)

– First come first served with one DSU/unit test per day.– IDS scheduled regionally to allow travel between sites (can be done over

series of days).– Aggregate test after all IDS tests are carried out. – Possible to complete over 2 week period.

Grid Code Tests conducted with normal site settings applied

Compliance must be demonstrated while operating within EPA licence and operating limits

Test Timelines

• DSU submits Test profiles 10 BD in advance of the proposed test date and notifies DSO as appropriate

• DSU submits Signed test procedures and test data files 1BD after the test

• DSU submits Test report 10BD after the test• EirGrid receive MRSO data 11BD after test• EirGrid review MRSO data and test report (10BD) • EirGrid coordinate effective date for market, EDIL changes

and TOD validation• Should there be no further issues after GCCT has been

successfully carried out, an Operational Certificate will be issued

Test Profile Template: http://www.eirgrid.com/media/DSUTestProfileTemplate.xlsx

Witness Requirements

Status Update1-2 slides

Reserve the right to attend site on any day of testing • Site audit to verify application information.• Analyse any time delays.• Communication with NCC as required.

One witness will travel between sites on the day of the test

• IDS testing are grouped regionally to allow travel between sites.• It is possible to travel to all IDS sites and carry out aggregate test

within 2 weeks.

The Witness may not attend all sites • No impact to schedule or testing. • DSU representative is on site to complete the IDS site test.

Operational Certificate

• Issued on successful completion of Grid Code Compliance testing

• Statement on tests completed successfully• Table of the DSU Technical Offer Data• Effective date of DSU Registered Capacity• Derogations to address known non-compliances• Statement regarding Performance Monitoring• Conditions for revoking of Ops Cert• Appendix of Operating Characteristics for DSU and IDS

• For DSU changing operating characteristics i.e. IDS increasing DSU capacity – DSU to submit application form and complete Aggregate MW capacity test.

Known Issues• DSU market and TSO process in effect since 2012

– Amount of new Market entrants increasing in 2014.

• Quality of DSU applications and provision of information– ~70% of applications are submitted to EirGrid speculatively and are incomplete.

• Indecision of DSU at application stage• DSU to drive the process respecting TSO timelines • Application process and form to change in near future

– Level of information from DSU to reduce.– DSO assessment and feedback to be considered.– Milestones for RTU, signal lists and testing to be considered.

• Performance Monitoring and dispatch instructions

Known Issues• Frequency requirements of IDS with Generators synchronised to

system – Confirmation of G10 settings or setting changes as applicable. – Confirmation from Generator OEM on frequency thresholds.– ROCOF changed from 0.5Hz/s to 1Hz/s.

• Issues identified through testing– DSU to rectify issues in advance of Op Cert i.e. DSU decides to remove an IDS from

application.– IDS not being informed of DSU testing or application issues and requesting update

directly from EirGrid.

• RTU and signal changes– Timeframe for signal changes.– ICCP project being trialled.

• Appreciation of TSOs role to test multiple units in parallel– Increasing level of connections expected in near future.

Contacts

Generator_testing@eirgrid.com Or

connections@soni.ltd.uk

Reference Material

Signal ListGrid Code RequirementsGrid Code TestsOperating Characteristics

Signal List

Status Update1-2 slides

Signal list includes information on the signal requirements for the RTU and the completion certificates to be submitted as part of this process. • Wiring Completion Cert – DSU• Pre Grid Code Check Cert – DSU, ESBTS

and EMS

After successful application, the signal list is amended and circulated to all parties for comment.

Other information on process including testing requirements also included.

All parties to work from Major versions only.

Template available at http://www.eirgrid.com/media/DSU_SignalListTemplate.xlsx

Grid Code Requirements

Status Update1-2 slides

Graph subject to approval of Grid Code Review Panel and CER - http://www.eirgrid.com/media/DSU_Frequency_Requirements_ForWebsite.pdf

Grid Code Tests

Status Update1-2 slides

 Test No. Grid Code Testing Requirements  Grid Code

Reference

1 DSU Specification of Aggregation CC.12.6

2 Demonstration of Signals as defined in the EirGrid Signal List including specification of aggregation

CC.12.2, CC.12.6

3 Demonstration of capability to provide Demand Side Unit MW Response from 0MW to the Demand Side Unit MW Capacity CC.7.4 (a)

4

Demonstration of capability to ramp up and down between defined load points with a rate of not less than 1.67% of Demand Side Unit MW Capacity per minute. The DSU should demonstrate stable operation for some period following ramp up

CC.7.4 (b, c)

Grid Code Tests

Status Update1-2 slides

 Test No. Grid Code Testing Requirements  Grid Code Reference

5 Minimum Down-Time being not greater than 30 minutes CC.7.4 (d)

6 Maximum down-time being not less than 2 hours CC.7.4 (e)

7 Minimum Off time not greater than 2 hours CC.7.4 (f)

8 Demand Side Unit MW response time of not greater than 1 hour CC.7.4 (g)

9

Demonstration of operation of plant on house load at high frequency and low frequency limits of operation for 60 minutes(statement from the OEM required)ROCOF Grid Code Modification - changing the requirement from 0.5Hz/s to 1Hz/s

CC.7.4 (h, I, j, k)

10 Demonstration of amber, red and blue alerts OC.9

11 Demand Side Unit Control Centre Audit OC.7

Operating Characteristics (1)

Status Update1-2 slides

Individual Demand Site Name/Number DSUIndividual demand

site no. 1MPRNBulk Supply Point or Connection Point Special Operating Limits or Network Limitations

EastingsNorthing

Maximum Import Capacity (MIC) (MW)

Maximum Export Capacity (MEC) (MW)

Individual Demand Site Total Size (MW)

Demand Side Unit MW Capacity (MW) N/A

Demand Reduction Capability - Avoided Consumption (MW)

Demand Reduction Capability - On Site Generation (MW)

Notification Time Time (min)

Time to Maximum reduction Time (min)

Ramp up rate MW/Minute

Ramp Down Rate MW/Minute

Minimum Down Time Time (min)

Maximum Up Time Time (min)

Irish Grid Co-ordinates

Operating Characteristics (2)

Status Update1-2 slides

Individual Demand Site Name/Number DSUIndividual demand

site no. 1Low

Frequency Trip Hz

High Frequency

Trip HzROCOF

Hz/SLow

Frequency Trip Hz

High Frequency

Trip HzROCOF

Hz/SGenerator MVA MVAGeneration Capacity of Generator MWFuel TypeStandby kWMode of Operation: Continuous Parallel, Lopping mode, Shaving mode, Standby Mode

G10 Protection

Generator Capability

Mode of Operation for the Generator: http://www.eirgrid.com/media/DSU_ApplicationForWebsite.pdf