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What is Smart Grid? A Utility Perspective. Progress Energy. Progress Energy Florida. 1.6 million customers 20,033 Square Miles 35 Counties 18,400 miles of overhead primary 12,800 miles of underground primary 277 T/D substations 1,248 feeders 1.035 million poles

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What is smart grid a utility perspective

What is Smart Grid?A Utility Perspective


Progress energy
Progress Energy

Progress Energy Florida

  • 1.6 million customers

  • 20,033 Square Miles

  • 35 Counties

  • 18,400 miles of overhead primary

  • 12,800 miles of underground primary

  • 277 T/D substations

  • 1,248 feeders

  • 1.035 million poles

  • 216,000 overhead transformers

  • 124,300 padmounted transformers



How did we get started on smart grid
How did we get started on Smart Grid?

Energy Policy Act of 2005

  • Requires the U.S. Department of Energy to study and report on national benefits of demand response and make a recommendation on achieving specific levels of benefits and encourages time-based pricing and other forms of demand response as a policy decision;

  • Requires all public electric utilities to offer net metering on request to their customers;

    Energy Independence and Security Act of 2007

  • Smart grid - modernization of the electricity grid to improve reliability and efficiency.



Current rate and grid status
Current Rate and Grid Status

Flat Rate—no customer price signals

  • 1,400,000 residential customers

  • 50 residential customers on Time of Use (TOU)

  • 7,500 WMW & 6,000 SMW of demand

    Grid Status

  • Minimal grid automation

  • Beyond feeder level no positive outage notification

  • Limited fault identification

  • Manual control of distribution feeders

  • Reactive system maintenance

  • Mobile Meter Reading (MMR) provides only one way communication

  • Demand Response (DR) has limited monitoring and verification


Benefits of a smart grid
Benefits of a Smart Grid

  • Grid Efficiency

    • Grid Optimization

    • Distributed Generation

    • Technical & Non-Technical Losses

  • Resource Economy

    • Demand Management

    • Renewable Integration

    • Direct Load Control (DLC)

  • Reliability

    • Positive outage notification

    • Fault location, Isolation & Restoration (FLIR)

    • Substation Automation (Intelligent Buss Tie)

    • Condition-based Maintenance

  • Customer Involvement in Energy Management

    • Knowledge of usage

    • Incentives for using power at different times

    • More control


Compare contrast today vs future
Compare & Contrast Today vs. Future

Today

Future

  • Manual fault location & isolation

  • Partial var management

  • Independent voltage regulation

  • No optimization of power flow

  • Real time fault values & remote control of switches

  • Real time volt/var management

  • Simulation models & dynamic reconfiguration to minimize losses


Restoration Process Today

Subsation A

Recloser

Subsation B

Feeder level outage, breaker locks out


Restoration Process Today

Subsation A

Recloser

Subsation B

Crew manually locates fault and radios back to Dispatch for isolation process


Restoration Process Today

Subsation A

Recloser

Subsation B

Crew manually opens switch, radios back to Dispatch to reclose breaker


Fault location isolation restoration flir
Fault Location, Isolation & Restoration (FLIR)

Subsation A

Recloser

Subsation B

Feeder level outage, breaker locks out


Fault Location, Isolation & Restoration (FLIR)

Subsation A

Indicates fault

Indicates no fault

Recloser

Subsation B


Fault Location, Isolation & Restoration (FLIR)

Subsation A

Recloser

Subsation B

Signal to switch to open


Fault Location, Isolation & Restoration (FLIR)

Subsation A

Breaker remotely closed

Recloser

Subsation B


Fault Location, Isolation & Restoration (FLIR)

Subsation A

Recloser

Subsation B

Signal to switch to close

Signal to switch to open


Fault Location, Isolation & Restoration (FLIR)

Fault Location

Isolation and

Restoration

(FLIR)

Subsation A

Recloser

Subsation B


Traditional var management
Traditional Var Management

Off Peak Power Flow


Real time var management
Real Time Var Management

Off Peak Power Flow



Real time var management1
Real Time Var Management

Peak Power Flow


Load shaping
Load Shaping

Customer

Awareness

(2-4% reduction)

Optimal flat

load profile


Dsm smart grid vision next generation lm schematic
DSM Smart Grid Vision Next Generation LM - Schematic

EnergyWise System

Signal Receiver

Current

Future

DMS (DSE)

Distribution Automation

WAN

(Cloud)

MDMS

Gateway

(Edge)

HAN

Zigbee

AMI

Internet

Integrated Bus

CIS System


Load shaping1
Load Shaping

Customer

Awareness

(2-4% reduction)

Tiered

Pricing

(Shift Usage)

Optimal flat

load profile



Price signals
Price Signals

(+-100 hrs)



Load shaping2
Load Shaping

Customer

Awareness

Tiered

Pricing

(Shift Usage)

Optimal flat

load profile

Energy

Storage

(Shift Demand)




Stimulus package
Stimulus Package

  • $787 billion total package

    • $179 billion in engineering related areas

      • $20 billion Renewable Energy tax incentives

      • $30 billion in “Smart Grid”

        • $11 billion for “reliable, efficient electricity grid”

        • $ 6 billion for renewable energy projects

        • $ 4.5 billion in energy efficiency of federal buildings

        • $ 6.3 billion in local government grants for energy efficiency

        • $ 4 billion green-retrofitting of low-income housing

      • $ 2.5 billion for “energy efficiency and renewable energy research, development, demonstration and deployment activities to foster energy independence, reduce carbon emissions and cut utility bills.”

  • Source: The Florida Engineer, Spring 2009


Challenges of implementation
Challenges of Implementation

  • Cyber/Telecommunication Security

    • Partner with telecommunication companies?

    • System operations potentially exposed

    • No longer “security by obscurity”

  • IT Requirements/Systems Integration

    • Integration of legacy systems into new technology

    • Volume of data increasing 1000 fold

  • Complexity of field equipment & personnel training

    • Is the more complex field equipment worth it?

    • Current Lineman classification not exposed to telecommunication issues

  • Plug-in Hybrids

    • V2G (Vehicle to Grid): Benefit or liability?


Smart grid brings strategic benefits
Smart Grid Brings Strategic Benefits

Customer

  • Ability to offer value added

    service options

  • Controls energy management

  • Mass customization of customer experience

  • Flexible billing dates

  • Provides savings

    opportunity

  • Operational Efficiency

  • More effective use of base load generation (PHEV)

  • Reduced peaker fuel & O&M

  • Remote connect/disconnect

  • T&D benefits of lower peaks

  • Improved Theft detection

Balanced Solution

  • Energy Efficiency

  • Alternative Energy

  • State-of-the-Art Plants

  • Regulatory

  • O&M Savings

  • Reduced carbon intensity

  • Reduced overall generation

  • GHG levels

  • Reliability improvements

  • Transition to 2-way energy mgmt.

  • Enables Measurement and

  • Verification

  • Revenue

  • Revenue protection

  • Provision for Distributed Generation

  • Pricing signal rates shift sales

  • that lower peaks

  • PHEV energy sales & management

  • Renewable, and energy storage options

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