Margarett Jolly DG Manager, Consolidated Edison Company of New York, Inc

Transcription

1 Margarett Jolly DG Manager, Consolidated Edison Company of New York, Inc

2 Con Edison s Infrastructure Delivers Energy To New York City And Westchester 3.3 million electric customers 1.1 million gas customers 1,800 steam customers 690 MW of regulated generation 36,000 miles of overhead transmission and distribution lines 94,000 miles of underground transmission and distribution lines 4,300 miles of gas mains 105 miles of steam mains and lines 2

3 Our Challenge as Load Increases! 3

4 Con Edison s has been a leader in promoting Energy Efficiency History 1971: Save A Watt program 200 MW reduction : Enlightened Energy program 740 MW reduction Current EE and DR programs Heating, Ventilation and Cooling Program Targeted Demand Side Management Program Central Air Conditioning Program Oil to Gas Conversions Small Business Direct Installation Program Various Demand Response Ongoing Energy Efficiency Portfolio Proceedings 4

5 and is becoming a leader in integration of clean and renewable Distributed Generation Initiatives in place and being developed Regional Greenhouse Gas Initiative (RGGI) New York State Net metering Renewable Portfolio Standard (RPS) New York City planyc 2030 calls for 800 MW of distributed generation resources by 2030 DOE/Solar America Initiative First Commercial Net meter customer in a Networked grid NYPA 100 MW RFP and NYC 2 MW RFP 5

6 Distributed Generation in CECONY Technology MW % Internal Combustion Engine % Combustion Turbine 82.3 Steam Turbine 43.5 Hydroelectric % 17% 1% Fuel Cell 3.5 1% The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again. Microturbine 5.0 Photovoltaic 3.0 Total 257 2% 1% 100% 6

7 Historic Distributed Generation Interconnections Emergency network support Substation Support WTC Network Emergency Backup for Critical Loads Hospitals, Water and Sewage Treatment, Prisons Typically diesel generators dedicated to critical loads Not parallel or with intricate protections schemes Large customers Familiar with ConEd specifications Interconnection requirement costs proportionally not prohibitive 7

8 Current DG Interconnections More and smaller customers nterconnecting Increase in self supply and peak shaving in addition to emergency backup Protection tailored to each interconnection Increase in smaller CHP installationss Increased inverter based solar Expanding ConEd and NYISO markets for DSR Demand response & ancillary services (reserves, VAR support, blackstart capability) Physical Assurity required for load forecasting Communications, dispatch, and M&V are Key 8

9 DG Facilitated through Continued Enhancements Helping our customers understand the playing field DG website DG technical expert and DG ombudswoman Interconnection seminars Interconnection technology advances also facilitate interconnect Current Limiting Protection (CLiP) dc Link Expanding our customer outreach efforts and stakeholder involvement DOE/EPRI projects Partnering with City, CUNY. Communications and operating protocols for DG participation Online Application Process January

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11 Electric Power Delivery Overview Transmission Distribution Generating Station (electricity generated at 13.8 to 22.0 kv) Transformers (voltage stepped up to transmission voltage) Transmission Substation Area Substation (voltage stepped down to distribution voltage) Transformers (voltage stepped down to 480, 208, or 120 V) Feeders Network Customers (residential, commercial, industrial, hospitals, schools, and street and traffic lights) Connection To Others Radial Customers 11

12 Manhattan Electric Distribution Networks 12

13 Network System 13

14 Network System 14

15 Network Grids Flow Area Substation A B C D E 13 kv Feeder 120/208 volt grid 15

16 Fault Protections and Reverse Power X Area Substation A B C D E 13 kv Feeder 120/208 volt grid 16

17 Network Protector Operation due to DG DG Area Substation A B C D E DG 13 kv Feeder 120/208 volt grid

18 Export and Islanding Concern TA1 TA2 DG Area Substation A B C TB1 TC1 TC2 D E TD1 TD2 13 kv Feeder TE2 120/208 volt grid TE1 TE2 18

19 Network Protector Network protector Transformer 19

20 Potential Impacts of DG on system Interference with the operation of protection systems Increased fault duty on company circuit breakers Islanding System restoration Power system stability Power Quality Harmonic distortion contributions Voltage flicker

21 Developing Communication and Control Technologies Expected to address existing concerns Coordination protection schemes NWP operation Fault current mitigation Power quality System restoration Dispatch and control Measurement and verification

22 Technology Trends in the Present DG Landscape. Con Edison Substation breaker upgrade program Fault current limiter technology at substation DC Link technology DOE/NYSERDA/Verizon communications & dispatch pilot project Smart grid communications backbone testing Customer side Inverter based distributed generation Fast fuse and fast switch technologies Metering, home area networks, etc. 22

23 Potential Demand Side Management Data Processing NYISO TO Con Edison RTU DRCC Building Forecast Model Retail Customer Retail Customer Retail Customer Retail Customer

24 Future Interconnection Landscape DR and DG Integral to the Con Edison Distribution system 24

25 Margarett Jolly DG Projects Manager Consolidated Edison Company of New York, Inc