Nj future redevelopment forum 2014 energy fehn

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Nj future redevelopment forum 2014 energy fehn

  1. 1. “Keeping the Lights on” Resiliency Benefits Of On-Site Generation At TCNJ Jack Fehn Energy Systems Specialist Energy and Central Utilities jfehn@tcnj.edu 1
  2. 2. The Campus • Founded in 1855 -City of Trenton • Relocated to Ewing Township in 1931 • 289 Acres • 6135 Undergraduate Enrollment • 39 major buildings • 14 Residence Halls that accommodate 3600 students 2
  3. 3. Campus Map 3 The Campus
  4. 4. On-Site Generation 4 Power Plant At Facilities Building 5MW Dual-Fuel Turbine The TCNJ Campus Gets Power From Parallel Feeds From The Utility (PSE&G) And An On-Site Generator. A 5MW Dual-Fuel Turbine Generates Electricity For Many Campus Buildings, And Is Managed By Onsite TCNJ Staff. The System Is Configured As A Combined Heat And Power Application That Provides About 2/3 Of The Campus’ Electricity, And Most Of Its Heat Load, And Mechanical Energy For Chillers.
  5. 5. Onsite Turbine 5 MW Fernwood 26 KVA Lawrence 26 KVA 15 KV Tap to front on Campus Academic Buildings PSE&G 5 Power Plant (E&CU) Feeders A-F Power Plant (E&CUCampus Buildings When the Campus load is low, the Turbine will sometimes push power to the 15 KVA Tap. This further reduces our need to purchase power from PSE&G Parallel Supply Paths
  6. 6. 6 On-Site Campus Facilities Control Room Centralized Chillers (1500 tons) Boilers – Augment CHP Heat If Needed Dual Fuel Turbine (Natural Gas, Diesel) Note: Turbine Runs On Natural Gas From PSE&G, Or Diesel Fuel Stockpiled Onsite. Note: Turbine Provide Most Heat Needed On Campus, But Can Be Augmented By Independently Fueled Boilers As Needed.
  7. 7. Benefits Of On-Site Generation 7 • Local control over all aspects of campus energy supply • Cost savings compared with utility electricity purchase • High efficiency, given CHP triple-use (electricity, heat, chillers) • Lots of redundancy built into the system  Parallel supply paths on many load points  CHP heat supply augmented by boilers  Duel fuel capability  Ability to balance utility vs. on-site supply profile • Resiliency: Ability to operate at nearly full load, even when grid is down Our CHP Capability Delivers Important Benefits Year-Round, AND Gives Us Resilient Capability During An Energy Emergency.
  8. 8. 8 Island Mode Island Mode: Ability To Separate From, And Operate Independent Of The Public Grid. We Can “Keep The Lights On” Even If “Stranded” By An Extended Grid Outage.
  9. 9. Turbine 5 MW Fernwood 26 KVA Lawrence 26 KVA 15 KV Tap to front on Campus Academic Buildings Disconnect From The Public Grid PSE&G 9 Power Plant (E&CU) Feeders A-F Power Plant (E&CUCampus Buildings Before a crises, TCNJ can isolate from the PSE&G grid Island Mode Powers 2/3 Of The Campus When Islanded 750 KW Black-Start Generator
  10. 10. • 10/27/12 The college decided to disconnected from the grid and go to island mode before the storm hits. • 10/29/12 Sandy hits New Jersey. PSG&G grid goes down. • 10/31/12 PSE&G power restored. Due to the configuration of the TCNJ Switch gear PSE&G was able to supply power to parts of Ewing that were still out because of faults in the grid. • 11/9/12 TCNJ went off Island mode and returned to a stable grid. 10 Super Storm Sandy
  11. 11. TCNJ helps Ewing Township “Keep the Lights on” after Super-Storm Sandy 11
  12. 12. Jack Fehn Energy Systems Specialist Energy and Central Utilities jfehn@tcnj.edu For more information see our web page http://powerplant.pages.tcnj.edu/ 12 “Keeping the Lights on” Resiliency Benefits Of On-Site Generation At TCNJ Thank You!

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