Visual Materials
Just prior to the merger with Edison, Calectric began exploring the feasibility of generating power from geothermal steam at Casa Diablo, near Mammoth, California
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Casa Diablo Substation, Mammoth
Visual Materials
Casa Diablo Substation, Mammoth - view towards Mammoth, Mammoth Mountain at extreme right.
photCL SCE 07 - 01268

The Sales Department office just off the main lobby of the new Edison Building, 1933
Visual Materials
The Sales Department office just off the main lobby of the new Edison Building, 1933. Pg. 169.
photCL SCE 11 - 00338

Edison drilled another exploration well for geothermal steam on the shore of Mono Lake in 1968
Visual Materials
Edison drilled another exploration well for geothermal steam on the shore of Mono Lake in 1968. Pg. 238.
photCL SCE 11 - 00482

This frequency changer at Edison's Colton Substation was a major point of interconnection with Southern Sierras Power Company, prior to the frequency change
Visual Materials
This frequency changer at Edison's Colton Substation was a major point of interconnection with Southern Sierras Power Company, prior to the frequency change. Pg. 219.
photCL SCE 11 - 00438