an overview of california smart meter policy & deployment...
TRANSCRIPT
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An Overview of California Smart Meter Policy & Deployment
Aloke Gupta Energy Analyst
California Public Utilities Commission (CPUC)September 4, 2008
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• California Smart Metering Overview
• Cost / Benefits
• Goals / Objectives
• Challenges in Affecting Customer Behavior
Smart Meters (aka Advance Metering Infrastructure - AMI)
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Smart Meter Deployments Now in Progress
Utility Shares of California’s Electricity Consumption (2006)
Source: California Energy Commision
• In 2003, CPUC ordered that all electric customers should have advanced (smart) meters– Applicable to three major Investor-Owned Utilities (IOUs) – Represent about ~68% of consumption
• Today, residential smart meter deployments in progress by all three IOUs– Already in place for large commercial & industrial customers
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•Website•Billing•Outage Mgmt.•Load Control
Smart Meter System / Network Overview
Smart Meters
DataCollectionUnit (DCU)
Network MgtSystem
DataManagementSystem
“LAN” (Proprietary 900 MHz Fixed Wireless) “WAN” / Backend (Standard)
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Smart Meter
IOU DataSystem
WebsitePath 2: HAN(2-way, real-time)
Path 1: Internet (1-way, next day)
Meter Communication Network
Home Area Network (HAN) = Zigbee (a communication protocol)
Two Methods to Provide Usage Feedback
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Provide two- way communication with utilityProvide customers with flexible access to usage data and prices• Understand usage patterns & their relationship to energy costs
Track interval (e.g., hourly) usage data: measure, store, transmitImplement price responsive tariffs (dynamic pricing):• Time of use, critical peak pricing, real-time prices
Enable dynamic pricing & feedback
Enhance operating efficiencies and savings• Auto meter reading, outage management, improved forecasting, theft reduction
Support billing, customer support, outage managementInterface with Direct Load Control communication technology
Increase system efficiency
Smart Meter: Minimum Functionality Required
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• California Smart Metering Overview
• Cost / Benefits
• Goals / Objectives
• Challenges in Affecting Customer Behavior
Smart Meters (aka Advance Metering Infrastructure - AMI)
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California Advanced Metering Synopsis (Residential, Small Commercial)
Pacific Gas & Pacific Gas & ElectricElectric
San Diego Gas & San Diego Gas & ElectricElectric
Southern Southern California EdisonCalifornia Edison
# of Electric Meters 5.1M 1.4M 5.3M
# of Gas Meters 4.2M 0.9M Gas Utility may connect to AMI
Costs Approved $1.7B in July 2006
$0.6B in April 2007 -
Costs Pending Approval $0.6B to upgrade - $1.7B
Deployment Schedule 2006 to 2012 2008 to 2011 2009 to 2012
Note: “interval meters” for large customers >200kW already in place
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AMI Business Case Summary
15%
59% 69%
14%
44%
26% 17%
0%
41%14% 14%
86%
0%
20%
40%
60%
80%
100%
Base Upgrade SCE SDG&E
EnergyConservation
DemandResponse
Operational
PG&E
AMI Benefits
Benefit/ Cost Ratio
1.08 1.06 1.02
$652
$1,967
$3,197
$0
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
PG&E SCE SDG&E
(PVRR = Present Value
Revenue Requirement)
AMI Costs (PVRR)
(2005) (2007) (2006)
Base$2,258
Upgrade$939
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Smart Meters (aka Advance Metering Infrastructure - AMI)
• California Smart Metering Overview
• Cost / Benefits
• Goals / Objectives
• Challenges in Affecting Customer Behavior
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Maximize potential societal benefitsOperational Savings leading to bill savingsImproved Reliability / Service Environmental benefits
Encourage Energy Conservation (Efficiency)
Maximize Demand ResponseParticularly price responsive demand response
CPUC Regulatory Objectives behind AMI
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California’s Electricity Supply / Demand
Source: California Energy Commission
Electricity Consumption by Sector (2006)
Electricity Generation
~ Equiv Four Avg Power Plants
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13One Year = 8760 Hours
California Hits Its Peak for Very Few Hours of the Year
Source: California ISO
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Demand Side Rationale• To enable conservation & demand response,
desirable for customers to be aware of:– How much electricity is consumed, for what uses?– How much does it cost?– When does it cost more or less?
• With Smart Meters, provide customers with opportunities to reduce and / or shift their electricity consumption– optimize net benefits
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• California Smart Metering Overview
• Cost / Benefits
• Goals / Objectives
• Challenges in Affecting Customer Behavior
Smart Meters (aka Advance Metering Infrastructure - AMI)
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AB1X Price Constraints• For residential sector, retail electricity prices
capped for up to 130% baseline consumption– Cap extends to circa ~2020– Fixed tier pricing
• Currently, the lowest tier prices are below cost of producing & distributing electricity
• Barrier to providing price signal to customers
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“The Last Yard!” (Inside the Home)
WebsiteBillingOutage Mgmt.Load Control
DataCollectionUnit (DCU)
Network MgtSystem
DataManagementSystem
• Utility deployment of Smart Metering system only extends up to the meter at the house
• Utility deployment of Smart Metering system only extends up to the meter at the house
• No provision for In – Home Display (IHD) devices to provide real-time feedback
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• Utility deployment of Smart Metering system only extends up to the meter at the house
• No provision for In – Home Display (IHD) devices to provide real-time feedback
• Up to third party vendors to market Zigbee-based solutions to consumers
• What will consumers respond to?– Display / device technology?– Information to display?– Control / programmable functions?– Cost of device?– Energy Management services?
“The Last Yard!” (Inside the Home)
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Smart Meters (aka Advance Metering Infrastructure - AMI)
• California Smart Metering Overview
• Cost / Benefits
• Goals / Objectives
• Challenges in Affecting Customer Behavior
• The Bigger Picture
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Smart Grid in California• Digital• Advanced Communications• Sensors & Automation• Predictive & Self-Healing
Clean Generation & Renewables
Transmission
Distribution
Customer
Advanced Metering (AMI), Demand Response, and Distributed Resources
Substation Automation
Distribution Automation
Distribution Circuit of the Future
• Smart Meters • Integrated (Distrib. Gen, Storage, PHEV)• Interactive, Real-time info• Standardized & Evolving
Transmission Data Collection and Automation
Figure Source: Southern California Edison Company
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21Data and graphs for the Sacramento area are provided by Prof. Andrew A. Frank, University of Calif.-Davis and CTO of Efficient Drivetrains Inc.
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Base load (MWh) Peak Power (MWh) V2G Power (MWh)
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Base load (MWh) Peak Power (MWh)
Energy available for the grid (V2G) 0 Mwh Consumption without V2G 35300 Mwh Total Base load before 24960 Mwh Total Peak Power before 10340 Mwh Energy use for recharging vehicles 4 Mwh Consumption with V2G 37068 Mwh Total Base load after 34560 Mwh Total Peak Power after 2508 Mwh Nb of vehicles 125000 # Consumption increase 5.01 % Base load increase 38.46 % Peak Power decrease 75.74 %
Night Load Without PHEV
Peak Without PHEV
Night Load With 20%PHEV
V2H/G
Example of What Smart Grid Can Achieve: 20% Penetration of PHEV Can Balance the Electric Grid
(Vehicle to Home/Grid)
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California Smart Meter Policy & Deployment
Thank You
Aloke GuptaCalifornia Public Utilities Commission
Email: [email protected]: 415.703.5239