Sunset Reservoir

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Sunset Reservoir
Sunset Reservoir is located in San Francisco Bay Area
Sunset Reservoir
Sunset Reservoir
LocationSan Francisco, California
Coordinates37°44′59″N 122°29′00″W / 37.7496°N 122.4833°W / 37.7496; -122.4833
TypeReservoir
Primary inflowsMunicipal Water System
Primary outflowsMunicipal Water System
Basin countriesUnited States
Max. length330 m (1,080 ft)
Max. width155 m (509 ft)
Surface area11 acres (4.5 ha)
Max. depth10 m (33 ft)
Water volume270 acre⋅ft (330,000 m3)
Surface elevation116 m (381 ft)
ReferencesU.S. Geological Survey Geographic Names Information System: Sunset Reservoir

Sunset Reservoir is one of three terminal reservoirs in the Regional Water System in San Francisco, California. The reservoir, the city's largest, is located in the Sunset District at 24th Avenue and Ortega Street, and is owned and maintained by the San Francisco Public Utilities Commission. Completed in 1960, the subterranean reservoir was constructed as an 11-acre (4.5 ha), 1,000 by 500 feet (300 m × 150 m), concrete basin, now containing 720 floor-to-ceiling columns. With its maximum depth of 33 ft (10 m), the reservoir's capacity is 270 acre⋅ft (330,000 m3) with average daily flows of 46 acre-feet (57,000 m3) through 42-inch (1.1 m) inlet/outlet pipes.[1]

Seismic upgrades

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  • Seismic rehabilitation, which would include stabilization of the soil dam embankment (completed); a retrofit of the walls and roof using seismic joints, shear walls, diagonal bracing, and struts; and foundation improvements.
  • General rehabilitation, which would include repairing deteriorated concrete, replacing part of the reservoir lining material, replacing inlet piping, installing security fencing, upgrading the landscaping, and other miscellaneous site improvements.[2]

Solar project

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The Sunset Reservoir Solar Project has installed 25,000 solar panels on the 480,000 sq ft (45,000 m2) roof of the reservoir. The 5-megawatt plant more than tripled the city's 2-megawatt solar generation capacity.[3] It opened in December 2010 in a ceremony introduced by then Mayor Gavin Newsom.[4]

Generation (MW·h) of Sunset Reservoir North Basin [5]
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total
2010 620 278 238 89 1,224
2011 4 288 413 685 841 1,080 929 957 661 528 188 178 6,751
2012 20 202 496 718 987 1,067 922 727 681 535 274 200 6,828
2013 47 96 163 172 193 246 232 313 304 269 268 280 2,582
2014 242 276 485 574 660 732 677 733 715 645 536 366 6,640
2015 323 407 596 669 673 693 717 726 599 505 467 385 6,759
2016 266 444 490 571 710 681 795 784 691 583 501 365 6,879
2017 267 298 556 586 737 799 728 673 628 579 356 339 6,545
2018 320 451 516 645 777 837 724 729 690 544 374 297 6,905
2019 302 353 536 624 649 785 775 759 620 570 365 235 6,572
2020 337 456 447 563 737 734 829 686 539 498 394 312 6,531
2021 314 412 531 665 725 704 674 663 572 476 379 259 6,375
2022 330 393 521 588 689 718 692 643 542 500 370 259 6,246
Total 76,837

See also

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References

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  1. ^ H. Kenneth Hudnell (April 2009). "Mixing, De-Stratification, And Break-Point Chlorination In San Francisco's Sunset Reservoir" (.PDF). SolarBee, Inc: 2. Retrieved 2009-10-13. {{cite journal}}: Cite journal requires |journal= (help)
  2. ^ Public utilities Commission (2009). "Sunset Reservoir Upgrades - North Basin". City and County of San Francisco. Retrieved 2009-09-29.
  3. ^ "Mayor Newsom Praises SFPUC For Approving New Five Megawatt Solar Project at Sunset Reservoir" (PDF) (Press release). SFPUC Communications and Public Outreach. 12 December 2008. Archived from the original (PDF) on March 6, 2016. Retrieved October 27, 2018.
  4. ^ KGO ABC7 News, December 2010
  5. ^ "Sunset Reservoir North Basin, Monthly". Electricity Data Browser. Energy Information Administration. Retrieved March 8, 2017.
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