Smart Grid Communication System (SGCS) Jeff Nichols Sr. Director IT Infrastructure San Diego Gas & Electric
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DOE Disclaimer
The
Department of Energy (DOE) disclaimer must be used. This is a DOE requirement. An acknowledgment of Federal support and a disclaimer must appear in the publication of any material, whether copyrighted or not, based on or developed under this project, as follows: Acknowledgment: "This material is based upon work supported by the Department of Energy under Award Number DE-OE0000371. Disclaimer: "This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof."
- For Internal Use Only -
The Spectrum Issue
As SDGE tried to spec & design a high-performance smart grid communication service, spectrum quickly became the key issue. We looked exhaustively at many options. 700 Mhz, 1.4 Ghz, 2.3 Ghz, 3.65 Ghz, 400 Mhz, 800/900 Mhz, 1.8 Ghz,
TV white spaces…
2.3 Ghz WCS spectrum was the only option that survived our major filters : Availability in our service territory Affordability
Clear title Equipment availability Operational fit 3
WCS Spectrum
*Amateur Radio Service has 5 MHz and is directly adjacent to A Block. The Federal Deep Space Receivers live between 2290-2300 MHz **Aeronautical Mobile Telemetry Service operates at the upper adjacent edge between 2360-2395 MHz
Service Design Goals Service Spec Throughput @ Cell Edge (3 simul users)
Design Goal 1 Mbps on downlink 100 kbps on uplink (per user)
Throughput close to cell
2.6 Mbps on downlink 1.3 Mbps on uplink
Latency
Less than 100 ms
Endpoints per cell
256 per sector 768 per 3 sector cell
Backhaul Availability
.999995 (2.6 minutes downtime per year)
RAN Availability
.99997 (15 minutes downtime per year)
Examples: Smart Grid devices
Pilot Coverage Prediction
SGCS Pilot Coverage Prediction
Policy Issues Going Forward
WCS Continued good partnership with FCC on evolving the operations
requirements in WCS bands Testing & cooperation with WCS neighbors
Other critical infrastructure spectrum Details on acquisition & usage of 700 Mhz public safety bands Federal oversight of those bands State & user governance of resulting shared networks
Cybersecurity requirements on communication infrastructure Creating a value metric not based on “per consumer”
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Q&A
http://sdge.com/smart-grid-movement
[email protected]
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