The Denny Substation consists of constructing a new electrical substation and an underground distribution network to accomplish a major electrical system upgrade for Seattle’s rapidly growing city. The substation is set in the vibrant urban Denny neighborhood. It is a one-of-a-kind substation to bring significant amenities to enhance the neighborhood. The substation also provides improved reliability and system flexibility, benefiting customers both in and beyond the project area. The substation responds to Seattle’s rapid growth, particularly the tech and biomedical sectors (including Amazon, Seattle Cancer Care Alliance and PATH) that are revitalizing the neighborhood but simultaneously create a heavy demand for power. The substation’s physical form stands as a significant historical marker of this era and signifies a critical investment in Seattle’s future.