1 / 21

Interactive Distributed Generation for Demand Response

Interactive Distributed Generation for Demand Response. Town Meeting: July 13-14, 2009 Washington DC. Wayne Hartmann; VP, Marketing whartmann@powersecure.com www.powersecure.com 919-556-3056. Discussion Topics. What is “Interactive Distributed Generation?”

cody-poole
Télécharger la présentation

Interactive Distributed Generation for Demand Response

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Interactive Distributed Generation for Demand Response Town Meeting: July 13-14, 2009 Washington DC Wayne Hartmann; VP, Marketing whartmann@powersecure.com www.powersecure.com 919-556-3056

  2. Discussion Topics • What is “Interactive Distributed Generation?” • How can IDG be used as a DR Tool? • Why Employ IDG in the DR Tool Set? • Making IDG Happen

  3. What is IDG? • Use of a Customer’s on-site distributed generation (DG) for DR purposes • DG size typically 250-5,000kW • Employ Reciprocating Engine Technology • Single or multiple engine generators • Connected to the distribution system • Interactive (the “I” in IDG) • DG is under Utility control for a DR call • DG is monitored for reliability

  4. IDG in DR Role Without IDG With IDG

  5. IDG: Typical Installation

  6. Dispatching & Monitoring Broadband typically used as communication medium No SCADA Additions/Modifications Needed !!!

  7. IDGTurnkeyApplication

  8. IDG Retrofit Applications Aka: “Harvesting”

  9. IDG: How Used for DR • Relieves Customer load by: • Load management (peak shaving) • Complete load curtailment • IDG provides seamless operation • IDG is paralleled with Utility • Soft Customer & Utility unloading/reloading • Does not disturb Customer’s process or business • IDG also provides Standby Power

  10. Load Management

  11. CompleteLoad Curtailment

  12. Why Employ IDG for DR? Dispatchable by the Utility “Harvesting” Lowest $/kW for Firm Capacity Future: Address Distribution Constraints Intelligent Grid/MicroGrid Capability • Peak Load Management • Defer T&D Build Out • Address Distribution “Hot Spots” • Address Transmission Constraints • Utility Does Not Own the Asset • Customer Owns the Asset • No Cap & Trade Issues

  13. Sustainability & Losses: Conventional Power Delivery • Losses typically 3-7% • 5% used in this example

  14. Sustainability & Losses: IDG for DR • Heat rates (efficiency) of modern engine/gensets applied in IDG systems are as good if not better than combustion turbines (CTs) [1,2]. • IDG capacity has a heat rate of 9,800 btu/kWh saving approximately 2,200 btu/kWh of fuel input compared to the overall peak power generation portfolio published by eGrid [3]. • [1] California Energy Commission; http://www.energy.ca.gov/distgen/equipment/reciprocating_engines/reciprocating_engines.html • [2] California Energy Commission; http://www.energy.ca.gov/distgen/equipment/combustion_turbines/combustion_turbines.html • [3] http://www.epa.gov/cleanenergy/energy-resources/egrid/index.html

  15. Sustainability • The amount of demand reduction can be precisely matched with the proper amount of dispatched IDG • Maximum efficiency of each IDG is maintained • IDG can be started and fully loaded within 30 seconds • Only small amounts of fuel are consumed without realizing power output and demand/load reduction. • IDG are considered spinning reserve while stopped! • Tremendous Green House Gas Savings and Carbon Footprint Reduction • Avoids 15% Reserve Capacity Over-Build Requirement

  16. Sustainability • IDGs can operate as bi-fuel • Use mixtures of diesel and clean-burn natural gas to reduce emissions • IDGs can utilize waste methane and biodiesel • IDGs can be fitted with selective catalytic reduction (SCR) to further limit emissions in regions where emissions are restricted • This is true for new installations and retrofitting of existing engine/gensets • IDG can be applied to firm Renewables

  17. Availability, Firmness, Reliability • Many IDGs have greater reliability than a small group of CTs • A failure of one or even a few IDGs only impacts the demand reduction capability associated with those failed systems…...the others relieve load. • IDG systems have an availability of over 96.5% [1] • CTs have typically an availability rate of 90-95% [2] • Monitoring keeps availability high • IDGs can pick up load in 30 seconds • IDGs use control implementations that will pick up as much of a Customers’ load as the generation will allow • Dynamic setpoint for non-export [1] PowerSecure operating experience from >850MW of aggregated IDG [2] European Commission Research; ftp://ftp.cordis.europa.eu/pub/eesd/docs/ev260901_poster_came-gt.pdf

  18. Prebound-Rebound Effect:Signaled Passive DR

  19. No Prebound-Rebound Effects:Signaled IDG-based DR

  20. Making IDG for DR Happen • Be open to it; employ a holistic view • Have rate structures and programs that support it • Shared Savings, Lease, other • Premium Power, Emergency Power, other Programs • Train CI&I Account Managers to suggest IDG as a rate reduction tool to Customers • Approach 24/7/365 power users for Greenfield or Harvesting applications • Data centers, hospitals, waste water, institutional, mission critical manufacturing, municipal services, hotels, food stores, refrigerated warehouses • Have DG interconnection processes in place

  21. Interactive Distributed Generation for Demand Response Town Meeting: July 13-14, Washington DC Interactive Distributed Generation for Demand Response Thank You Questions?

More Related