Central Bluffs Substation

We studied multiple locations over several years. This site was chosen because it offered enough space for current needs and future expansion, is near an existing transmission corridor and is located near the existing substations that are being replaced.

Substations represent the central nervous system for our electric grid. Power cannot be reliably and safely delivered to your homes and businesses without substations.

In simplest terms, substations transform voltage from high to low or from low to high, as needed. As we pursue a more carbon-free energy future within the next decade, the size, adaptability and location of substations continue to grow in importance.

We conducted an EMF study as part of our development plan. The site is expected to remain below the 150 mG EMF limits set by the State for projects near a right-of-way. For comparison, this EMF level is notably lower than those of common household appliances like vacuum cleaners (300 mG) or microwaves (200 mG).

The preliminary noise and light evaluations concluded a minimal impact on the surrounding area. Noise output from the substation will remain below state and local thresholds of 50 decibels (measured 25 feet from the substation property line).

For comparison, a washing machine has a noise output of about 70 decibels. There will be minimal light used at the site except for emergency repairs that might happen overnight.

 The site will include tall steel structures enclosed by a wall at least eight feet tall. There will be landscaping around the site to reduce visual impact.

Final design details will be shared as the project progresses. View illustrations in the ‘Project renderings’ section above.

We plan to preserve community access where possible. Near the end of construction, we will begin a Request for Quote process to formally gift the land to a nonprofit organization, with community input guiding the outcome.