Distribution Planning and Interconnection Process
October 10, 2019
© 2015 San Diego Gas & Electric Company. All copyright and trademark rights reserved.
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Jose Lopez – Distribution Planning ManagerKen Parks - Customer Generation Manager
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Customer Energy Management
Substation Energy Storage
DistributedEnergy Storage
Distributed Energy Resources
HomeEnergy
Resources
Advanced Distribution Management System
Feeder Automation System Technology
• Leveraging prior innovations: Advanced Metering Infrastructure (AMI), Weather Network, SCADA
• Implementing and advancing tools and systems to plan, monitor, and control the distribution system: advanced distribution management, distributed energy resource (DER) management
• Enhancing consumer engagementin support of a more innovative and efficient energy system
Evolving Distribution System
DER Growth
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944 3,629 6,819 10,810 16,070
26,982 42,708
69,909
100,301
119,273 143,376
166,660
‐20,000 40,000 60,000 80,000
100,000 120,000 140,000 160,000 180,000
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Net Energy Metering Cumulative Authorizations by Year
15.04 31.43 57.01 91.62 128.98 196.13301.08
469.8
667.99810.41
995.791,147
0
200
400
600
800
1000
1200
1400
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Net Energy Metering Cumulative Megawatts by Year
Making Things Easy for Our Customers
• Distribution interconnection portal
• Distribution Interconnection Information System (DIIS) – Transparency and efficiency
• FastTrack interconnection process– Environmentally Conscious – Quickest in the state
• Automated online payments– Flexibility– Convenience
• Automated jurisdictional (AHJ) electrical release process4
Integration Capacity Analysis (ICA)
• Distribution capacity information to help enable DER interconnection safely and reliably
• Information most relevant to larger DER projects
• ICA analysis produces DER hosting capacity information at millions of locations across the distribution system
• Calculating ICA Values
• Assesses current system capabilities
• Uses dynamic methods – hourly load and resource profiles
Thermal Protection Power Quality Safety Standard of existing equipment
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Interconnection Portal
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Distribution Interconnection System
Issued US Patent - April 2017
Features• DIIS was launched 2013
• Keys: service and transparency
• Empowers customers/ contractors to manage their own business through self-service tools and monitor every milestone within the utility’s control
Benefits• Over 140,000 applications
processed
• ~87,000 through Fast Track process (60%)
• Average approval time is three days
• 500,000 avoided vehicle miles due to Fast Track
DIIS Features and Benefits
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• GoSolar website reader for inverters/modules
• Reverse Power Flow Detection• Remote Meter Configuration (RMC) • GIS integration release (mapping)• Transformer Loading • NEM paired with storage • Automated approvals • Tariff changes• PayPal/Braintree integration• AHJ Inspector (City inspection releases)• Standard Rule 21 application automated • Backup generator tracking
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Continuous Improvement
Automated Application Process
1) Create MyPartners Account
2) Submit Application in DIIS
3) Sign & Submit Interconnection Agreement
4) City / County Inspection
5) SDG&E Inspection
6) Permission to Operate (PTO) Issued
SDG&E’s automated process has eliminated many of the administrative type application deficiencies that existed prior to its
implementation
Customer Responsibility
Six Easy Steps
Average Authorization3 Calendar Days
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Fast Track
525,000 Avoided Miles
‐
5,000
10,000
15,000
20,000
25,000
2013 2014 2015 2016 2017 2018 2019
1,192 3,920
13,669
21,222
14,190 18,598
14,836
Fast Track Projects
‐
50,000
100,000
150,000
2013 2014 2015 2016 2017 2018 2019
7,152 23,538
82,044
127,416
85,170 111,588
89,016
525,000 Avoided Driving Miles
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• Easy – Convenient – Flexible • Available 24/7 everyday• Processed 74,729 payments
Automated Online Payment
175 62 69 80 94 231805
2376
4963
7542
84898070
69867258
80787472
5285
2400
1118815 729 757 552 321
‐
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11
NEM Payments by Hour
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Search for Address
Select Release type(s)
Submit Release
Search for Meter #
When user is typing in address or electric meter number, the system auto-completes to assist with data entry
Ability to concurrently submit multiple electrical releases at the same location (solar, battery, meter set, etc.)
Automated Electrical Release Process
More efficient way of sending electrical releases for generation (no need for double entry)
Thank You!
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