Producing Clean Renewable Energy

Producing Clean Renewable Energy (HMLO)

Location: Groveland, CA 95321 Tuolumne County
Country: United States of America

N 37° 56.859', W 119° 47.273'

  • 0 likes
  • 0 check ins
  • 0 favorites
  • 74 views
Pictures
Sorry, but we don't have a picture of this historical marker yet. If you have a picture, please share it with us. It's simple to do. 1) Become a member. 2) Adopt this historical marker listing. 3) Upload the picture.
Inscription
Every year the Hetch Hetchy Water and Power System produces 1.7 billion kilowatt-hours of clean renewable hydropower - equivalent to the power generated from burning 39 million gallons of oil.

Early Intake Powerhouse was built in 1918, twelve miles downstream from O'Shaughnessy Dam. It supplied power for the tools and equipment used in building the dam. It also powered lighting for nighttime construction - a visionary innovation at the time.

Moccasin Powerhouse was built in 1925; Holm and Kirkwood Powerhouses were built decades later to increase power generation capacity.

Hydropower from the Hetch Hetchy Water and Power Project supplies electricity to the Modesto and Turlock Irrigation Districts, in accordance with the Federal Raker Act, and to San Francisco for the airport, hospitals, libraries, schools, streetlights, electric buses and other municipal facilities.

(caption) San Francisco City Hall, San Francisco General Hospital and non-polluting electric railcars use renewable energy from the Hetch Hetchy Water and Power Project.

(caption) Early Intake Powerhouse, completed in 1918, provided a dependable source of clean power at the beginning of the Hetch Hetchy Water and Power Project construction.

(caption) Worker next to a Pelton Wheel, one of the most efficient water turbines for producing hydropower.

(inset diagram captions) Reservoir // A penstock is a pipeline or tunnel which delivers water from a higher elevation to the turbines located at the powerhouse. // A Pelton turbine is turned by the force of the water on their cups. // Generators are rotated by the turbines to generate electricity. // Transmission lines conduct electricity to the cities.
Check Ins  check in   |    all

Have you seen this marker? If so, check in and tell us about it.

Details
HM NumberHMLO
Tags
Marker ConditionNo reports yet
Date Added Monday, September 15th, 2014 at 8:49am PDT -07:00
Locationbig map
UTM (WGS84 Datum)11S E 255033 N 4203673
Decimal Degrees37.94765000, -119.78788333
Degrees and Decimal MinutesN 37° 56.859', W 119° 47.273'
Degrees, Minutes and Seconds37° 56' 51.54" N, 119° 47' 16.38" W
Driving DirectionsGoogle Maps
Area Code(s)209
Closest Postal AddressAt or near 101-199 Dam, Groveland CA 95321, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

Is this marker missing? Are the coordinates wrong? Do you have additional information that you would like to share with us? If so, check in.

Comments 0 comments

Maintenance Issues
  1. This marker needs at least one picture.
  2. Is this marker part of a series?
  3. What historical period does the marker represent?
  4. What historical place does the marker represent?
  5. What type of marker is it?
  6. What class is the marker?
  7. What style is the marker?
  8. Does the marker have a number?
  9. What year was the marker erected?
  10. Who or what organization placed the marker?
  11. Can this marker be seen from the road?
  12. Is the marker in the median?