Station E substation
The Station E substation will improve the reliability and capacity of midtown and downtown.
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SMUD is constructing a new substation in Sacramento at the north end of 20th Street, north of C Street and the Union Pacific Railroad tracks. The new Station E Substation will replace the North City Substation. Constructed in the 1950s, the North City Substation is nearing the end of its planned operational use.
Substations are critical links in the electrical distribution system. Electricity travels through SMUD’s transmission system to substations where it can be converted to a lower voltage before safely being delivered to homes and businesses. The Station E Substation will directly serve the midtown and downtown areas, improving energy reliability and capacity.
The scope of work for Final Construction includes:
- Grading and surfacing
- Construction of concrete foundations and control building
- Underground conduit and grounding
- Steel structures and equipment (transformers, circuit breakers, switches)
- Electrical buss and wiring
- Testing and commissioning
- Cutover of overhead and underground transmission and distribution lines from the existing North City Substation
Environmental enhancements and management
Environmental leadership is one of SMUD’s core values. SMUD has invested over $16 million to haul away waste and contamination that had been on the site for decades to prepare it for substation construction which begins May 2019.
The portion of the site where Substation E will be constructed is now much cleaner and safer and meets environmental and geotechnical requirements for construction.
SMUD and its construction contractor will monitor air quality during substation construction keeping an eye on dust emissions from the site. Air quality monitoring data will be made available here and updated once a week.
For previous air quality reports, please email StationE@smud.org.
Learn how to reduce your exposure and protect your health from harmful particle pollution.
SMUD’s contractor is required to implement dust control measures that include the following:
- Wetting travel areas with water trucks
- Stockpile management BMPs
- Onsite speed limit
- Limited soil disturbance during high winds
- Dust monitoring
- Track out control measures
- Wet power vacuum street sweeping
February 2020 Update
Site construction is going well. Shown below are many of the piers, steel structures and yard electrical equipment in place. Crews will soon begin the electrical interconnections throughout the yard and to the control building.
Construction continues on the approximately 10,000 square foot, 2-story Control Building. Completion of the exterior is scheduled for mid-March. Once the building is weather tight and HVAC is operational, equipment installation can begin. Below are pictures of the structural steel for the roofing and panels being installed.
Yard electrical buss and wiring continues, including installation of insulators, switches and associated equipment.
- Underground civil construction work continues near the UPRR tracks.
- We're continuing to work 6 days a week (Monday-Saturdays). Construction is scheduled to complete in Spring 2021.