Panel Discussion
Panel Discussion Camilo Serna Vice President, Corporate Strategy Northeast Utilities
Environmental Business Council of New England Energy Environment Economy
Grid Modernization in MA EBC Evening Program Camilo Serna VP Corporate Strategy November 20, 2013
NU’s Smart Grid Vision
The Smart Grid will create a digital energy system that integrates new tools and technologies from generation, transmission, and distribution all the way to consumer appliances and equipment.
Source: Adapted from EPRI.
Self-Healing Wide-Area Protection Distributed Generation & Alternate Energy Sources
Optimization and Improved System Efficiency Asset Management and On-Line Equipment Monitoring 3
Smart Grid Primary Benefits
Smart Grid Primary Benefits
Quantifiable benefits
Improved reliability
• Reduced outage duration
Effective DG integration
Improved system efficiency & power quality
• Safe and reliable interconnection capabilities
• Reduced line losses
• Enhanced knowledge of customer outages & restoration status
• Reduced operational impact from distributed resources (power quality, reliability, utility system integrity)
• Elimination of power quality impacts experienced by customers
• Protection against overload conditions
• Opportunities for improved resiliency
• Reduced number of customers impacted by outages
• Reduced total energy usage
Advanced asset management
• Reduced maintenance expenses • Reduced associated failure expenses • Deferral of replacement capex
4
5
NU’s Recent Experience & Learnings
• Distribution Automation & Reliability • Effective Integration of DG
• AMI Business Case • Dynamic Pricing • Enabling Smart Grid Investments
6
Distribution Automation & Reliability Improved reliability
WMECO
NSTAR
>
Distribution Automation >
Installed more than 2,000 switches throughout service territory and over 5,000 sensors monitoring the electric grid
>
80% of NSTAR customers benefit from Distribution Automation.
>
Expanding DA program and capabilities as part of $20MM US DOE ARRA Project ›
Moving towards full Auto-Restoration
>
Automated Vacuum Fault Interrupters (VFI) allowing for automation on underground switches
>
DigitalGrid Network Reporting using power line carrier communications
>
>
›
Monitors 100% of the transformers (~1,500 total) on underground secondary network in Boston & Cambridge to provide near real-time data to SCADA system.
›
Technology is installed and enabled at every network transformer in our secondary network
Overhead System Automation via reclosers and recloser loop schemes ›
New radio infrastructure installed 2008 allowed for wide spread DSCADA deployment
›
Approximately 53% of customers served by the overhead system are a part of a loop scheme
Motor operated switches with advanced remote terminal units (RTUs) 7
Distribution Automation & Reliability
NSTAR South Locations
NSTAR North Locations
Impact on # of Customer Outages Averted
8
Effective DG Integration
Effective DG Integration
WMECO
NSTAR
>
$10MM Urban Grid Monitoring & Renewables Integration (US DOE ARRA Pilot) ›
Enhances visibility into status of underground secondary network in downtown Boston
›
Improves reliability and ultimately allows for testing the integration of inverter-based renewable generation onto the secondary network grid
›
Direct Transfer Trip using Distribution Automation, lowers installation cost
>
“Power Tag” pilot project underway to test the feasibility of a lower cost solution to detect an islanding condition
>
WMECO’s 4.1 MWs of solar generation provide opportunity to study the impact of distributed generation on the utility grid
9
AMI Business Case - CL&P Business Case (04/12)
Base Case Defining Characteristics: Full AMI Deployment 25% Opt-in Dynamic Pricing participation Peak reduction at levels achieved in 2009 CL&P Pilot leading to a peak reduction of 120MW
15 year meter life 1% Conservation enabled
10
AMI Business Case - Metering Technology Options
Metering Technology Options
Operational Benefits
>
AMR Mobile
>
Drive-by Meter Reading
>
Enhanced AMR
>
Remove service connect & disconnects
>
Home Area Network/Software
>
Power quality readings
>
Fixed External Area Network
>
>
Swap individual meters for TOU – wireless
Outage identification & restoration notification
>
Planning data
>
Bridge AMI
Non-Operational Benefits
>
Full AMI
>
TOU register
>
Interval data
>
Daily reads (at office e)
>
On-demand readings
>
Communication to meter
>
Communication capability in meter to customer
11
Dynamic Pricing - NSTAR’s Smart Energy Pilot Interim Results
Average Load Reduction (kW)
Average Impacts, 90% Confidence Interval 0.30 0.25
Winter Summer
0.20 0.15 0.10
0.05 0.00 Group 1: Enhanced Info
Group 2: Rebate+LC
Group 3: TOU/CPP+LC
Group 4: TOU/CPP
* Findings based on 9 months of data, may not be indicative of results at pilot end
• • • •
Peak Period Savings Up to 16% for TOU Rate TOU rate saved ~0.15 kW (summer afternoons and winter late afternoons/evenings) TOU savings: 10 -16% depending on customer loads Non-TOU summer savings of ~4% 12
Dynamic Pricing - NSTAR’s Smart Energy Pilot Interim Results
Challenging to convert “interest” to “install” and to sustain interest long- term
53,000 Customer contacts
6.7% Response
3,600 Customers Enrolled 2,700 Customers Installed
25% Dropout prior to Install
1,594
40%
Currently Enrolled
Dropout after install 13
Investment Considerations
IT and OT Systems
Cyber Security
Communications
14
Environmental Business Council of New England Energy Environment Economy
Grid Modernization in MA EBC Evening Program Camilo Serna VP Corporate Strategy November 20, 2013
NU’s Smart Grid Vision
The Smart Grid will create a digital energy system that integrates new tools and technologies from generation, transmission, and distribution all the way to consumer appliances and equipment.
Source: Adapted from EPRI.
Self-Healing Wide-Area Protection Distributed Generation & Alternate Energy Sources
Optimization and Improved System Efficiency Asset Management and On-Line Equipment Monitoring 3
Smart Grid Primary Benefits
Smart Grid Primary Benefits
Quantifiable benefits
Improved reliability
• Reduced outage duration
Effective DG integration
Improved system efficiency & power quality
• Safe and reliable interconnection capabilities
• Reduced line losses
• Enhanced knowledge of customer outages & restoration status
• Reduced operational impact from distributed resources (power quality, reliability, utility system integrity)
• Elimination of power quality impacts experienced by customers
• Protection against overload conditions
• Opportunities for improved resiliency
• Reduced number of customers impacted by outages
• Reduced total energy usage
Advanced asset management
• Reduced maintenance expenses • Reduced associated failure expenses • Deferral of replacement capex
4
5
NU’s Recent Experience & Learnings
• Distribution Automation & Reliability • Effective Integration of DG
• AMI Business Case • Dynamic Pricing • Enabling Smart Grid Investments
6
Distribution Automation & Reliability Improved reliability
WMECO
NSTAR
>
Distribution Automation >
Installed more than 2,000 switches throughout service territory and over 5,000 sensors monitoring the electric grid
>
80% of NSTAR customers benefit from Distribution Automation.
>
Expanding DA program and capabilities as part of $20MM US DOE ARRA Project ›
Moving towards full Auto-Restoration
>
Automated Vacuum Fault Interrupters (VFI) allowing for automation on underground switches
>
DigitalGrid Network Reporting using power line carrier communications
>
>
›
Monitors 100% of the transformers (~1,500 total) on underground secondary network in Boston & Cambridge to provide near real-time data to SCADA system.
›
Technology is installed and enabled at every network transformer in our secondary network
Overhead System Automation via reclosers and recloser loop schemes ›
New radio infrastructure installed 2008 allowed for wide spread DSCADA deployment
›
Approximately 53% of customers served by the overhead system are a part of a loop scheme
Motor operated switches with advanced remote terminal units (RTUs) 7
Distribution Automation & Reliability
NSTAR South Locations
NSTAR North Locations
Impact on # of Customer Outages Averted
8
Effective DG Integration
Effective DG Integration
WMECO
NSTAR
>
$10MM Urban Grid Monitoring & Renewables Integration (US DOE ARRA Pilot) ›
Enhances visibility into status of underground secondary network in downtown Boston
›
Improves reliability and ultimately allows for testing the integration of inverter-based renewable generation onto the secondary network grid
›
Direct Transfer Trip using Distribution Automation, lowers installation cost
>
“Power Tag” pilot project underway to test the feasibility of a lower cost solution to detect an islanding condition
>
WMECO’s 4.1 MWs of solar generation provide opportunity to study the impact of distributed generation on the utility grid
9
AMI Business Case - CL&P Business Case (04/12)
Base Case Defining Characteristics: Full AMI Deployment 25% Opt-in Dynamic Pricing participation Peak reduction at levels achieved in 2009 CL&P Pilot leading to a peak reduction of 120MW
15 year meter life 1% Conservation enabled
10
AMI Business Case - Metering Technology Options
Metering Technology Options
Operational Benefits
>
AMR Mobile
>
Drive-by Meter Reading
>
Enhanced AMR
>
Remove service connect & disconnects
>
Home Area Network/Software
>
Power quality readings
>
Fixed External Area Network
>
>
Swap individual meters for TOU – wireless
Outage identification & restoration notification
>
Planning data
>
Bridge AMI
Non-Operational Benefits
>
Full AMI
>
TOU register
>
Interval data
>
Daily reads (at office e)
>
On-demand readings
>
Communication to meter
>
Communication capability in meter to customer
11
Dynamic Pricing - NSTAR’s Smart Energy Pilot Interim Results
Average Load Reduction (kW)
Average Impacts, 90% Confidence Interval 0.30 0.25
Winter Summer
0.20 0.15 0.10
0.05 0.00 Group 1: Enhanced Info
Group 2: Rebate+LC
Group 3: TOU/CPP+LC
Group 4: TOU/CPP
* Findings based on 9 months of data, may not be indicative of results at pilot end
• • • •
Peak Period Savings Up to 16% for TOU Rate TOU rate saved ~0.15 kW (summer afternoons and winter late afternoons/evenings) TOU savings: 10 -16% depending on customer loads Non-TOU summer savings of ~4% 12
Dynamic Pricing - NSTAR’s Smart Energy Pilot Interim Results
Challenging to convert “interest” to “install” and to sustain interest long- term
53,000 Customer contacts
6.7% Response
3,600 Customers Enrolled 2,700 Customers Installed
25% Dropout prior to Install
1,594
40%
Currently Enrolled
Dropout after install 13
Investment Considerations
IT and OT Systems
Cyber Security
Communications
14
