1. SMART GRID INTEROPERABILITY PANEL WINTER 2012 FACE-TO-FACE IRVING, TEXAS  DEC. 3-6, 2012 PAP 16 WIND PLANT COMMUNICATIONS BILL MONCRIEF, AL HEFNER

2. WINTER 2012 FACE-TO-FACE IRVING, TEXASAgenda PAP 16 History and Status IEC Standard 61400-25-2 update Related Activities 2

3. WINTER 2012 FACE-TO-FACE IRVING, TEXAS PAP 16 History We started in January, 2010 with a meeting, a brochure, and the beginning of a plan. There were some papers, some White Papers, and some help from NIST and others. We held an organizing meeting in March and started having bi-weekly meetings. The SGIP was growing at the same time, so we were asked to develop new things and to try new documentation and so forth We developed a list of ISO’s and others that required data from Wind Plants and compiled THE LIST! 3

4. WINTER 2012 FACE-TO-FACE IRVING, TEXAS PAP 16 History In June, 2010, we started to address the list and said we’d like to have a guidebook. We held interviews with ISO leaders We began to learn more about 61400-25 4

5. WINTER 2012 FACE-TO-FACE IRVING, TEXAS PAP 16 History In July 2010, we addressed the Wind Power Coordinating Committee to tell them what we were doing After the meeting in St. Louis in October 2010, we wrote to IEC TC88, the home of 61400-25 Our quad chart had a RED Flag on it because we were not making progress with the IEC We knew little about the IEC process There was no Maintenance team for 61400-25! By January 2011, we were stalled out We started to work on adding a member to the US team 5

6. WINTER 2012 FACE-TO-FACE IRVING, TEXAS PAP 16 History In April 2011, our member Anders Johnsson was appointed to lead the maintenance team. We nominated Stan Klein to the US TAG Team We addressed the TC 88 committee to explain what we were hoping to do. We agreed to address 61400-25-2, the modeling portion of the standard..\sg3_roadmap.pdf..\sg3_roadmap.pdf In July 2011, we developed the formal request to IEC In October 2011, we heard from the IEC that the task of including our recommendations was accepted, but that the descriptions needed work. 6

7. WINTER 2012 FACE-TO-FACE IRVING, TEXAS PAP 16 History By January 2012, An change was made in the IEC maintenance team A joint maintenance team was formed, including both TC 88 and TC 57 to address both 61400-25 and 61850, the substation communications standard. By February, a disagreement between the 61400-25 and the 61850 groups was brewing and meetings were held to smooth out the differences. PAP 16 decided to hold the application guide until the standard was complete. The Joint Maintenance team continues to work. 7

8. WINTER 2012 FACE-TO-FACE IRVING, TEXASAgenda PAP 16 History and Status IEC Standard 61400-25-2 update Related Activities 8

9. WINTER 2012 FACE-TO-FACE IRVING, TEXAS Report on JWG-25 and related efforts Stanley A. Klein Open Secure Energy Control Systems, LLC (301) 565-4025 stan@osecs.com

10. WINTER 2012 FACE-TO-FACE IRVING, TEXAS Background PAP-16 goal is to make 61400-25 suitable for supporting US practices - IEC 61400-25 is wind power extension of IEC 61850 Surveyed ISO/RTO's for requirements Developed proposed changes to data models in 61400- 25-2 and provided to IEC Maintenance Team 25 was formed within IEC TC 88 MT-25 became JWG-25 between TC 88 and TC 57 10

11. WINTER 2012 FACE-TO-FACE IRVING, TEXAS JWG-25 activities Efforts broadened beyond PAP-16 submittal include several issues of harmonization with IEC-61850  Meteorological tower  Alarm model  Statistical model  Nested Common Data Classes  Semantic definitions  Interfaces to 61400-26 (availability) and 61400-27 (simulations) 11

12. WINTER 2012 FACE-TO-FACE IRVING, TEXAS Other activities Web services for 61850 - Wind power is a requirements domain - IEC 61400-25-4 Annex A is a potential solution Weather data for production forecasting - Being addressed in PAP21 Weather 12

13. WINTER 2012 FACE-TO-FACE IRVING, TEXAS Plans Potential approaches Prepare and release CDV of 61400-25 Edition 2 as interim solution Work on harmonization with 61850 for Edition 3 Letter prepared for sending to national committees requesting comments on advisability of interim Edition 2 13

14. WINTER 2012 FACE-TO-FACE IRVING, TEXASAgenda PAP 16 History and Status IEC Standard 61400-25-2 update Related Activities 14

15. WINTER 2012 FACE-TO-FACE IRVING, TEXAS Needs for Wind Power Forecasting Forecasting of Wind Power in IEC 61400-25 ed 2 Dr. Gregor Giebel DTU Wind Energy (formerly Risø National Laboratory) Hamburg, 11. January 2012 15

16. WINTER 2012 FACE-TO-FACE IRVING, TEXAS Wind Plant Weather Data Use Cases Application of Weather Data by Wind/Solar/CHP Generator Forecasting data may be used autonomously by a single turbine or wind farm in the middle of nowhere.  Wind farm determine its own maintenance schedule, taking next few day low-wind periods into account. (cleverfarm.com) Historical data for Wind/Solar/CHP plant siting. Communication of Weather Data collected by Wind plant individual turbine and met. tower for other applications: Storage charge management and microgrid islanding. Markets, operations, outage/restoration, disturbance 16

17. WINTER 2012 FACE-TO-FACE IRVING, TEXAS Weather Data Types for Wind Forecasts Types of forecasts required for Wind Power: Basic operation: Point forecasts Operation which takes into account asymmetrical penalties on deviations from the bid: Quantile forecasts Stochastic optimization taking into account start/stop costs, heat storage, and/or ’implicit’ storage by allowing the hydro power production to be changed with wind power production: Scenarios respecting correctly calibrated quantiles and auto correlation. 17 Source: Henrik Aalborg Nielsen, ENFOR

18. WINTER 2012 FACE-TO-FACE IRVING, TEXAS Possible Gaps in Weather Standards WXXM is very sketchy with regard to representing uncertainty, as it is made to transport observations, not forecasts. Might be helpful to add info from individual turbines such as wind speed/direction at turbine altitudes (to better represent microclimate). Need better way to aggregate data over various time and spatial scales. Time and spatial scales vary widely:  Time scales vary between historical data for siting, market or restoration, rapid data exchange for disturbance analysis  Spatial scales vary between wind/solar generator or farm, building/campus, microgrid or distribution system, ISO/RTO 18

19. WINTER 2012 FACE-TO-FACE IRVING, TEXASReferences http://science.house.gov/hearing/subcommittee-energy-and- environment-hearing-rd-high-performance-renewable-energy- development http://science.house.gov/hearing/subcommittee-energy-and- environment-hearing-rd-high-performance-renewable-energy- development Forecasting of Wind Power in IEC 61400-25 ed 2, Dr. Gregor Giebel, DTU Wind Energy; http://powwow.risoe.dk/publ/GiebelGehrke- AddingForecastsToIEC61400-25.pdf cleverfarm.com http://www.dis.anl.gov/projects/windpowerforecasting.html DOE SunShot FOA on forecasting at sub-hourly, hourly, day www1.eere.energy.gov/solar/sunshot/financial_opps_detail.ht ml?sol_id=511 19

20. WINTER 2012 FACE-TO-FACE IRVING, TEXAS Concern with Wind Plant Use Cases It's important to note that there is a big difference between including wind power forecast data in the standards (such as 61400-25) and the discussion around general weather data. It is unclear if general weather observations, other than those that are part of normal wind power plants, should be within the scope of Wind Plant Weather UCs.  Normal wind plant weather data includes: nacelle instruments and the plant's permanent met tower instruments that are connected to the wind plant SCADA system 20