Waltham Gas and Electric Company Generating Plant

generator building at 96 Pine Street in Waltham, Massachusetts. Built c. 1900–1909, this large concrete-and-stone building is an essentially unaltered early power generation plant, although all of its window openings have been filled with concrete. It originally housed a steam power generator, and was sold by Waltham Gas and Electric to Boston Edison, who converted it to an electrical substation in 1917, a role it continues to fulfill.^[2]