Welcome to Charleston

Transcription

1 POWER SYSTEMS CONFERENCE Welcome to Charleston

2 POWER SYSTEMS CONFERENCE It s A Brave New World! John S. (Sam) Holeman, III Duke Energy Vice President, Transmission System Planning & Operations

3 My Background and History Sam Holeman The Perspective of a System Operator/System Planner Obtained Electrical Engineering Degree Power System Emphasis Worked on Energy Management Systems (EMS) System Operations Support Engineer Professional Engineer in NC and SC System Operator on shift Control Center Manager System Operations Engineering and Training Leadership Obtained MBA System Planning and Operations Leadership 32 years in pretty much the same job Yes, I am a dinosaur but not extinct just yet Copyright 2018 Duke Energy Corporation. All rights reserved. 3

4 About Duke Energy One of the Largest Electric Holding Companies in the United States Electric Utility operations in North and South Carolina, Indiana, Ohio, Kentucky and Florida serving 7.5 million customers 50,000 MW of regulated generation Renewable generation of 2200 MW of Wind and 2845 MW of Solar throughout the United States and growing monthly Copyright 2018 Duke Energy Corporation. All rights reserved. 4

5 WABAC Machine - My first day of work % 48% 50% Nuclear Coal Hydro & Oil Using the system designed and built in the 1960s and 1970s Bill Lee one of the innovators End of Nuclear Expansion period Most complex machine ever built by man Eastern Interconnection of North America 5

6 Does anyone remember the WABAC machine? Top 10 Customers All textile companies All headquartered in our service territory Duke Power was formed in part to service this load System Operations Energy Management System My first job System Applications SCADA Alarming Economic Dispatch Load Forecasting peak load approx. 14,000 MWs Summer peaking Growing 4% to 5% annually Advanced applications well sort of. 6

7 Fast forward to 2018 through the Guardian of Forever. Load is low growth/flat to declining Nuclear in a standstill VC Summer in South Carolina Vogtle in Georgia Environmental concerns about carbon emissions and by-products from coal combustion Natural gas supply increases and diversifies Cost of renewable technology down, supply up 7

8 Fast forward to 2018 Live Long and Prosper. Very few textile customers left with significant load High Tech/Data Center/Bitcoin Customers Low Tolerance for interruptions/transients Desire to be good environmental stewards Energy Control Centers (ECCs) State of the art visualization and situational awareness tools Using and depending on advance power system applications daily Engineers on shift 8

9 National Perspective: Solar Irradiance 9

10 National Perspective: Solar projects 10

11 Estimated Solar Projections in Carolinas MW (AC) Copyright 2018 Duke Energy Corporation. All rights reserved. 11

12 Variability and Intermittency Copyright 2018 Duke Energy Corporation. All rights reserved. 12

13 Ramp Rates in Winter Load Shape 1900 MW/hr High risk of excess energy 1100 MW/hr High risk of deficit energy 400 MW/hr 1250 MW/hr With 2200 MW of solar, the highest ramp rate occurs at HE 10:00 at over 1900 MW/hr With 2200 MW of solar, the evening ramp rate from 14:00 16:00 more than triples to 1250 MW/hr Copyright 2018 Duke Energy Corporation. All rights reserved. 13

14 Lowest Reliability Operating Level (LROL) Management of Operational Excess Energy due to Must-take Solar Copyright 2018 Duke Energy Corporation. All rights reserved. 14

15 Supply and Demand Balance Impact on Frequency Goal stay balanced Balanced measured by ACE Area Control Error (MW) All BAs drive interconnection frequency At Interconnection level More demand than supply frequency drops More supply than demand frequency rises Copyright 2018 Duke Energy Corporation. All rights reserved. 15

16 Lynn Good current President and CEO of Duke Energy What is our purpose at Duke Energy? Why does Duke Energy Exist? Copyright 2018 Duke Energy Corporation. All rights reserved. 16

17 Lynn Good current President and CEO of Duke Energy To power the lives of our customers and the vitality of our communities! Copyright 2018 Duke Energy Corporation. All rights reserved. 17

18 My Motivation 18

19 Conclusion from a System Operator Renewables are here to stay Let s learn how to operate the system with them. Copyright 2018 Duke Energy Corporation. All rights reserved. 19

20 Q&A

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