1. Demand Response Analysis and Control System (DRACS)
High level architecture
and subcomponents
Stuart McCafferty
EnerNex Corporation

2. Demand Response Management System (DRMS)
SCADA
Business Rules Engine
Demand Response Analysis and Control System (DRACS)
Business Rules Optimization and Analysis for DR (BROADR)
Historian
Load Information
Network Status &
Load Information
Addresses of DR Devices
Total capacity of Package
Confidence Value
Market Information / Signals
(CAISO)
Visualization
Scenario Development
Scenario
Confidence
Distributed
Resource
Analysis Engine
Business Rules Analyzer
How much
<generation/shed>
do we need?
Generation Capacity
Demand Responsive Devices Database
Change Load Conditions
Grid Conditions
Are Not Normal
Commands
Attributes
and Behavior
Demand Responsive Devices and Access Paths
Aggregator
AMI
Load Curtailment
Commands

3. DRACS Components Demand Responsive Devices and behavior database
Requires import functionality for DR devices and behavior
Distributed Resource Analysis Engine
Visualization

4. DRACS Distributed Resource Analysis Engine
Description: Scenario evaluator that exercises algorithms based on historical and simulated human behavior, network status, attributes, and latencies
Inputs
Scenario(s) from BROADR
Demand Responsive Devices database
DR/customer capacities
DR/customer historical behavior
Network status and load information
Outputs
Confidence of meeting load management request

5. DRACS Demand Responsive Devices Database Component
Description: Database incorporating DR device attributes, historical human behavior, and network characteristics
Device discovery, maintain device directory
Library of available Demand-Responsive devices
Device type
Consumer
Generator
Both
Device Maximum Capacity
Access Point Address
Meter GUID
Device Address
Aggregator
Previous human behavior responses to DR events
Network characteristics

6. DRACS Visualization Component
Description: Provide visualization capability of real time data and drill down capability for demand responsive devices
Inputs:
Load parameters from SCADA historian
Network information
Devices from database
Outputs
Plots
Google Map-like representation of DR landscape

7. Backup Slides

8. Other Information to Capture and Include in DRACS model
Price Signal
Implementation Technology
Manual
PCT
Direct Load Control
Home EMS
Climate Zone
Temperature
Customer Type
Time of Day
Past History

10. Inputs DRMS Demand Response Analysis and Control System (DRACS)
SCADA
Demand Response Analysis and Control System (DRACS)
Load or
Generation
Needs
Business Rules Engine
Business Rules Optimization Analysis for DR (BROADR)
System
Loads
Analyzer
Demand Responsive Devices
Database
Analyzer
Best solution
(w/ confidence
Interval)
DR Loads
Market Info
Type, Address,
Access Point, Capacity
DR Generators
Generation
Aggregator

11. Outputs DRMS Demand Response Analysis and Control System (DRACS)
Best solution
(w/ confidence
Interval)
Demand Response Analysis and Control System (DRACS)
Business Rules Optimization Analysis for DR (BROADR)
Analyzer
DR Loads
Demand Responsive Devices
Database
Analyzer
Load or
Generation
Needs
DR Generators
Shed or Generate
Instructions
AMI
Aggregator
Shed or Generate
Commands
Load Curtailment
Shed
Commands

12. Demand Responsive Devices
DRACS Functionality
Situational Awareness
Aggregation of usage inputs
Device discovery, maintain device directory
Library of available Demand-Responsive devices
Device type
Consumer
Generator
Both
Device Maximum Capacity
Access Point Address
Meter GUID
Device Address
Aggregator
Implementation of buy/shed decisions
Real time control
Demand side load management
Device type
Consumer
Generator
Both
Device Maximum Capacity
Access Point Address
Meter GUID
Device Address
Aggregator
Demand Responsive Devices
Database

13. Business Rules Optimization Analysis for DR (BROADR) Functionality
Supply/Demand Business Analysis
Inputs: Market conditions, system load status
Interface with DRACS
Planning
Inputs: Day ahead plan from ISO, estimated demand, available power and price in 5 minute intervals (price set 24 hours ahead of time)
Perform Day Ahead Planning
Price adjustment
Price analysis
Internal Web interface
Visualization of supply price and availability, estimated demand and profit information
Execution Control
Inputs: load and demand usage in x time interval
Real time control
Load shedding
Generation increase
Internal real time Web interface ?
Customer Interfaces & Registration Programs
Web Portal
In home display
Consumer, business, industrial programs