Dynamic Distribution Grids

A National Town Meeting on Demand Response & Smart Grid June 26, 2013 Neal Bartek Smart Grid Projects Manager © 2012 San Diego Gas & Electric Company.

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San Diego Gas & Electric

• Subsidiary of Sempra Energy • Regulated public utility • Provide safe & reliable energy service to 3.4 million consumers • 1.4 million electric meters 840,000 natural gas meters 4,100 square mile service territory in San Diego & southern Orange Counties (25 cities) • Owns 1,835 miles of electric transmission lines and 21,601 miles of electric distribution lines • Operates two compressor stations, 166 miles of natural gas transmission pipelines, 8,100 miles of distribution pipelines and 6,197 miles of service lines • 4,500 employees 2

Agenda

Dynamic Distribution Grids

Drivers Dynamic Grid Tools Real Life Example

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Drivers – Growing Need for Flexibility starting in 2015

• Significant ramping will be required in both AM and PM to accommodate renewable production • Governor has a plan for 12 GW of DER (> 1 GW for SDG&E) • Coordinated operation of various DER can help mitigate ramping requirements for baseload generation 4

Drivers – Renewable Variability/Intermittancy

• Advanced forecasting capabilities for dispatching DER • Distributed controls for smoothing spikes

March Peak Day 2020

4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 System

Net of Wind & Solar

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

MONTH Mar 2020 Installed Capacity SOLAR DG (MW) 600 SOLAR Central (MW) 1250 WIND (MW) 725

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Drivers – Growth in Commercial/Residential Solar Generation

• Net Energy Metering (NEM) production “hides” load • Ability to create voltage issues and excess equipment operations

Drivers – Fast Forward to 2020

• Rule 21 is being revisited to consider requiring “smart” inverter functionality • Smart Inverters have the ability to respond to control signals from the utility

~ 12% of forecasted 5000 MW peak load Historical growth is significantly higher than the 18% shown.

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Drivers – San Diego’s Solar Rooftops

• • More than 25,000 rooftop solar installations in San Diego, highest per capita rate in country Produce more than 184 MW of clean electricity 8

Dynamic Grid Tools – Microgrids

• Microgrids: Manage DER • Manage voltage and power quality at local level 9

Dynamic Grid Tools – Microgrid Opportunities

• • • • • • Support the integration of renewable resources Improve reliability and power quality Support emergency operations Ability to “ride through” outages Optimize energy usage Enable participation in new markets for demand response and ancillary services 10

Dynamic Grid Tools – Outage / Distribution Management System (OMS/DMS)

Replace existing OMS and install new DMS system with integrations to GIS, CIS, AMI, SCADA, Crew Dispatching … WENT LIVE SEPTEMBER 29, 2012!

Present

PAST

Future

NOW

► Paperwork ► Manual processes ► Software systems are not fully integrated ► Most Unplanned outages are reported by customers ► Near real time data ► Automated process ► Integration with many systems ► Faster outage restoration times ► Improved outage communications

Borrego Springs Microgrid Demonstration Project Utilize advanced technologies to integrate and manage distributed resources within the Smart Grid

Budget: Benefits: $8.0M DOE and $2.8M CEC plus matching funds from SDG&E and partners  Integrate and leverage various generation and storage configurations  Reduce the peak load of feeders and enhance system reliability  Enable customers to become more active participants in managing their energy use Distributed Energy Resources Substation Energy Storage Customer Energy Management Microgrid Controller Feeder Automation System Technology Community Energy Storage Home Energy Storage 12

April 8, 2013

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Thank you!

Neal Bartek, [email protected]

http://www.sdge.com/smartgri d/

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