Active Load Management and the MicroGrid
June 24, 2010
Allen M. Freifeld SVP External Affairs Viridity Energy [email protected] 443-878-7155
Peak Shaving Load Shifting
Load Shifting+ Regulation
Pre-Cooling Pre-Cooling
Capacity• Easy to Implement• Low Barriers to Entry• Primary DR Offering
Requirements Capacity Energy Efficiency
Metering Type Basic Utility Settlement Grade Revenue Grade
Settlement/Data Intervals Monthly Daily – 15 minute Real Time – 5 minute
Notification Email, Phone Real Time Real Time
Software Platform None required Advanced Advanced
Optimization None required Required Required
NOC None required Required Required
Consulting Services Optional Yes Required
Outsourced Services Optional Yes Required
Real-Time Energy• Real Time Optimization &
Control• Daily Price Settlement• Load Optimization and
Microgrid Congestion Management
• Leverages storage assets• High Barriers to Entry
Efficiency• Self-Balancing Microgrid• Co-optimizes multiple markets• Integrates Electrical Vehicles• High Barriers to Entry
Participation in the Real Time Markets Requires Advanced Operation and Software Capabilities
Smart Grid: an Integrated Solution
• A vision for the future – a self-balancing network of distributed resources driven by communication and intelligence
Source: iTeres
Energy generated at off-peak times could be stored
in batteries for later use
These can shut off in response
to frequency fluctuations
WindFarm
Offices
Smart Appliances
Central Power Plant
Storage
Industrial Plant
Processors
Execute specialprotection schemes
in microseconds
Generators
Energy from small generators and solar
panels can reduce overall demand on the grid
Isolated Microgrid
Detected fluctuations and disturbances can signal for
areas to be isolated
Sensors
Demand Management
Use can be shifted to off-peak times to save money
Houses
Disturbance in the grid
Solar Panels
Viridity: Full Spectrum of Microgrid Services
ViridityEnergy
RTOs
• Distr. Utilities• Investor Owned
Utilities• Munis/Coops
• Microgrid asset owners
• Building Automation System providers
• End-users
Utilities
• Reliability• Delayed Capital
Investments• DR, Emissions
Goals
• Virtual Power• Dispatchable Load
• Economic Value• Self-Sufficiency• Reliability• Sustainability• Targets
Customers
Strengths Opportunities
Modular in Nature Carbon regulation
Heterogeneous Power Quality Expanding renewables market
Reliable Power (even during grid outage)
Smart Grid Investment
Flexible architecture Inverter and Storage Technology Advances
Multiple ownership models Declining Cost of Curves
Diverse applications Telecommunications Advances
Integrated heating and cooling Growth in developing world
Broad global markets Plug in hybrids
Weaknesses Threats
Incentives diffuse Political power of incumbents
Unclear road map Lack of clear standards
Fragmented regulation Competing business models
Utility safety concerns
Microgrid SWOT Analysis
Active Load Management and the Microgrid
• Microgrids
• Control
• Optimization
• Control – Power Analytics
• As designed specifications and performance• Actual Real time performance
• Protective device coordination; Power flow studies; voltage; fault analysis; reliability of system components
• What is vs. what if conditions.• Collision avoidance; early warning
• Active load Management and the MicroGrid
• Optimization• Solutions based on operating and market data
• Constraints (environmental, comfort) considered
• Real time re-optimization
Integration Layer
VPower Gateway
SCADAEMSBMS
UI Engine
Displays`
Forecast Data Feeds
External Services
Mar
ket I
nter
face
s
Generation Forecast
VP Load Forecast
CBLOptimizer
Model Builder
PJM CBL Calculation
Carbon Footprint
Calculation
PORT
AL
VPowerTM – System Architecture
9
Settlement
Power Analytics
9
Optimization Example
Imported PowerImported Power
Solar Panels (2 MW)
Battery(5 MWh)Battery
(5 MWh)
Gas Fueled Gen (5 MW)
Diesel Generator (5 MW)
Diesel Generator (5 MW)
HVACHVAC
6/27/08 Case 0 Case 1 Case 2 Case 3
T Optimized √ √ √ Solar 2 MW √ √
Battery 5 MWh √ √ Gas Gen 5 MW √
Diesel Gen 5 MW √Fixed Load 7 MW √ √ √ √
GT Gen Costs $75/MWh $75/MWh $75/MWh $75/MWh $75/MWhDiesel Gen Costs $247/MWh $247/MWh $247/MWh $247/MWh $247/MWh
Retail Night $55.00 $ 55.00 $ 55.00 $ 55.00 $ 55.00 Retail Day $65.00 $ 65.00 $ 65.00 $ 65.00 $ 65.00
G + T $37.50 $ 37.50 $ 37.50 $ 37.50 $ 37.50 Import MWh 226.24 214.77 202.31 63.64
Supply Savings $ - $ 969.64 $ 1,817.59 $ 9,893.02 DR Revenue $ - $ 5,986.45 $ 8,247.70 $ 21,376.18 Fuel Costs $ - $ (12,092.02)
Net Savings $ - $ 6,956.09 $ 10,065.29 $ 19,177.18
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