| PG&E Powerhouse | |
| Location: | 400 Jibboom St., Sacramento, California |
| Coordinates: | 38.5934°N -121.5056°W |
| Built: | 1912 |
| Architect: | Willis Polk |
| Architecture: | Classical Revival Beaux-Arts architecture |
| Added: | September 23, 2010 |
| Refnum: | 10000774 |
PG&E Powerhouse, also known as Sacramento River Station B is a historic building located in Sacramento, California, constructed in 1912 by notable architect Willis Polk.[1] Originally used by Pacific Gas and Electric PG&E as an auxiliary power plant and transformer substation, it played a key role in transforming voltage for distribution.[1]
In 1924, PG&E upgraded the facility, making it the largest steam turbine power plant in the region. However, in 1957, PG&E sold the building, and its interior was stripped of all metal components and equipment, leaving behind a large open space.
In November 2021, the building became home to the SMUD Museum of Science and Curiosity (MOSAC) as part of a $40.8 million redevelopment project.[2]