Transcript Microgrid – A Smart Grid Alternative Service Delivery M Thomas Bialek, PhD, PE Chief Engineer SAME Luncheon – May 12, 2010 © 2006

Microgrid – A Smart Grid Alternative Service Delivery M
Thomas Bialek, PhD, PE Chief Engineer
SAME Luncheon – May 12, 2010
© 2006 San Diego Gas & Electric Company. All copyright and trademark rights reserved.
The Utility World
Today
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The Utility World
2015 +
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The Utility World
Tomorrow
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SDG&E Borrego Springs Microgrid Project
In cooperation with the US Department of Energy and the California Energy
Project
Description: Commission, SDG&E and 10 public and private sector partners will develop a
“microgrid” project - a small version of its electric grid which takes advantage of
local distributed energy resources and state-of-the-art controls to enhance grid
operations – to achieve a >15% reduction in feeder peak load and improve system
reliability.
Current
Status:
•Site Selection complete – Borrego Springs
•Finalizing system requirements and high level design
•Developing customer communication plan
•Collaborating with environmental agencies to satisfy permitting requirements
Distributed Energy Resources
Utility-scale Energy Storage
Rooftop PV Solar
Micro-turbines
Building Energy Storage
Community Energy Storage
Distributed Generation
Home Energy System
PHEVs
Ground PV Solar Array
Rooftop PV Solar
Utility-scale Energy Storage
Switches &
Power
Electronics
Micro turbine
Information
Electricity Pricing
DER status
Demand Response Programs
Network status
Community Objectives
Load and Resource Profiles
Energy
Storage
Ground PV Solar Array
National Energy Technology Laboratory
PHEVs
Distributed Generation
Home Energy System
Grid Resources
Capacitor Banks
Voltage Regulators
Automated Switches
Power Electronics
Communications
Microgrid Selected Project Site: Borrego Substation
Key Characteristics:
Strengths:
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No residences nearby, plenty of land
More Existing Solar Customers
Large Reliability Improvements Possible
Possibility of ‘Islanding’ Entire Community
Great learning environment
Extendable to service territory
Challenges:
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Remote Area
Challenging Communications Environment
New Fencing Required
Requires Accelerating schedule for
Condition Based Maintenance and AMI
Deployment
Borrego offers SDG&E an opportunity to be the leader in the microgrid area, with the
possibility of being able to island an entire substation with peak load of over 13 MW.
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Project Architecture: Context
Level Architecture
MicroGrid Context Level Architecture
Endpoints
Last Mile Network
Backhaul Network
Data Collection
Backoffice Systems
Utility DG (2x 1.8MW)
Customer Information
System (CISCO)
- Diesel Generator
Utility Storage (~1 MW)
CRM SAP
- 3.3kw Battery
- TBD
Outage Management/
Distribution
Management
(OMS/DMS)
SCADA
VAr Devices (~1 MW)
Shared with CBM
SEu ESB/EI
- VAr Compensator
Feeder Automation (FAST)
- SCADA Automated Switches
- SCADA Controllers on
3 existing capacitors
GIS
IBM
Openway Collection
Engine
Itron MDMS
HAN Device
(ADM)
- Thermostat
- Water Heater
- Pool Pump
IBM
Solar
(Gridpoint Connect)
HAN
RF Mesh
DRCA
Itron
AMI Meter
HAN
IBM
DERMS
IBM
HAN
Customer Storage
(Gridpoint Connect)
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Issues and Challenges
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Coordination of Efforts Across Departments and with
Subcontractors
Integration of Utility and Customer Distribution Energy
Resources
Distribution Automation
Asset Management
Security – Cyber & Physical
Establishing Secure Communications Network
Development of Appropriate Systems and Related IT
Architecture
Customer Participation in DG and Demand Response
Programs
Regulatory and Tariff Impacts
Integration of New Market Participants
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