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Transformers are devices that take the electricity of one voltage and change it to another voltage. Transformers convert the distribution line voltage (12 kilovolt) to the voltage used by homes and businesses (120 volts to 480 volts).
In Alameda’s electric system, there are two categories of transformers. Transformers that look like cylinders are mounted on utility poles. Other transformers are contained in green boxes, which are mounted on the ground. Undergrounding district transformers fall into the second category.
The exact locations of necessary above-ground equipment, such as transformers and switches, will be determined during the design stage. It is Alameda Municipal Power’s practice to place equipment within public right-of-way areas whenever possible. Should it be necessary to locate equipment on private property, Alameda Municipal Power will work with the property owner to obtain an easement. Details regarding equipment placement will be available prior to the start of construction.