| Denny Substation | |
|---|---|
_-_04.jpg) View from the south side | |
 | |
| General information | |
| Type | Electrical substation |
| Location | 1250 Denny Way Seattle, Washington |
| Coordinates | 47°37′08.8″N 122°19′53.8″W / 47.619111°N 122.331611°W |
| Construction started | 2016 |
| Completed | October 2018 |
| Inaugurated | July 20, 2019 |
| Cost | $210 million |
| Owner | Seattle City Light |
| Dimensions | |
| Diameter | 184 ft (56 m) |
| Design and construction | |
| Architecture firm | NBBJ |
| Engineer | POWER Engineers |
| Structural engineer | KPFF Consulting Engineers |
| Main contractor | Walsh Construction |
The Denny Substation is an electrical substation located in the South Lake Union neighborhood of Seattle, Washington, and operated by Seattle City Light. The facility takes up a whole city block along Denny Way and features a community center, interpretive exhibits, a dog park, and public art.
The substation was proposed in the early 2000s, during redevelopment of South Lake Union into a high-tech hub. A former Greyhound bus garage was acquired by Seattle City Light and demolished in 2014. Construction on the Denny Substation, including a street vacation to close part of Pontius Avenue, began in 2016 and was completed in 2018, at a cost of $210 million.