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1© 2014 Electric Power Research Institute, Inc. All rights reserved.
Mark McGranaghanVice President, Power Delivery and Utilization
NYPSCMay 22, 2014
2© 2014 Electric Power Research Institute, Inc. All rights reserved.
The Vision
AnIntegrated
Grid
3© 2014 Electric Power Research Institute, Inc. All rights reserved.
Integrated Grid Research Gaps
Develop an Assessment Framework
Interconnection Technical
Requirements
Integrated Grid Planning & Operations
Enabling Policy and Regulations
4© 2014 Electric Power Research Institute, Inc. All rights reserved.
Developing the Framework
• Develop a framework for assessing the costs and benefits of the combinations of technology that lead to a more integrated grid
• Ensure consistency in comparison of options
• Build a resource library that will integrate knowledge from demonstrations
Comprehensive Framework: Consistent, Repeatable & Transparent
Scenario Development
Hosting Capacity
Assessment
Distribution Grid Impact/ Technology SolutionsTransmission
System Impact/
Technology Solutions
Cost Benefit Analysis – All Value Streams
Comparison of Scenarios
5© 2014 Electric Power Research Institute, Inc. All rights reserved.
Integration of Distributed Resources
Localized Voltage & Capacity in Long Circuits
Prevalent Overvoltage, Overcapacity &
Protection Issues
Reverse Power FlowReactive Power Balance
Voltage & Frequency Stability
Increasing Re-dispatchTransmission Constraint
Incr
easi
ng
Pen
etra
tio
n L
evel
Distribution Edge
Feeder-level
Substation
Sub-transmission
Transmission
Central Generation Generation Capacity & Ancillary Service
Voltage Support
Loss Reduction
T&D Avoided Capacity
Loss Reduction
Frequency Support
Energy, Capacity & Ancillary Services
Incr
easi
ng
Pen
etra
tio
n L
evel
6© 2014 Electric Power Research Institute, Inc. All rights reserved.
Learning from Germany
Installed Capacity (2013)
Solar
Wind
Interconnection Rules• Responding to frequency
variations• Voltage support• Ride through
Grid Infrastructure Upgrades• ~$27.5B-$42.5B upgrade
Integration with Operations • Communications• Visibility• Coordination of controls
~63GW of Installed Wind and PV – mostly connected to LV
and MV grid
Source: Fraunhofer Institute, Germany
Recent Changes in Germany to Address Concern of Grid Reliability
7© 2014 Electric Power Research Institute, Inc. All rights reserved.
The “Duck” Curve is Real
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MW - Lunedì, 30 Agosto 2010
MW - Lunedì, 29 Agosto 2011
MW - Lunedì, 27 Agosto 2012
Source: ENEL – Measured Data from Southern Italy and CAISO analysis
Increased requirement for downward ramping capability in
the morning
More upward ramping capability is required when
sun goes down
Need lower minimum generation levels to avoid over-generation
Not Just Resource Adequacy but the Adequacy of Resource of the Right Type
8© 2014 Electric Power Research Institute, Inc. All rights reserved.
Integrated Planning and Operation
Transmission/ Independent
System Operator (TSO/ISO)
Distribution System Operator (DSO)
Distributed
Energy
Resources
(DER)
Establish technical requirements for transmission-distribution interface in a distributed resource future
• Scheduling
• Real-time balancing
• Integrated markets
• Planning
• T&D operation
• Integrated System Modeling
Requires a coordinated effort among all stakeholders
9© 2014 Electric Power Research Institute, Inc. All rights reserved.
Broad Collaboration Required
Develop an Assessment Framework
Interconnection Technical
Requirements
Integrated Grid Planning & Operations
Enabling Policy and Regulations
10© 2014 Electric Power Research Institute, Inc. All rights reserved.
Thank You!10