Energy demand is growing by leaps and bounds as growth continues across the Treasure Valley. To help us continue our tradition of providing safe, reliable, affordable energy, Idaho Power installed batteries on approximately 10 acres at our Boise Bench Substation property on Amity and Holcomb roads. These batteries have a capacity of up to 200 megawatts — enough to power 70,000 homes for four hours during times of peak demand.

Why are these batteries needed?

As our customers’ needs grow, Idaho Power is investing in resources to keep up with demand. Batteries charge when energy use is low, like summer mornings. We can then use the energy stored in these batteries during times of peak use.

Why are you putting the batteries on the Boise Bench Substation Property?

The Boise Bench Substation, located south of Amity Road and west of Holcomb Road, is a key hub for delivering power to our customers in the Treasure Valley and throughout southern Idaho. Idaho Power built the substation in the 1950s. It is an ideal place to put batteries because it’s close to substation equipment and powerlines that serve the area. This will save our customers money and help us deliver energy more efficiently.

What do these batteries look like?

The batteries look like shipping containers you see on semi-trucks or rail cars. Idaho Power built a textured concrete wall and planted trees around the batteries to screen neighbors’ view of them. These barriers comply with City of Boise landscaping, screening, and fencing standards.

Are the batteries safe?

The batteries Idaho Power installed feature industry-leading safety systems and top-of the-line remote monitoring and operation capabilities. The batteries sit on concrete pads. They are contained in steel enclosures and surrounded by a fence (like other substations). Each battery has its own fire-suppression systems and sensors that detect fire-indicating gases. The battery site also has a comprehensive fire monitoring system.

The ground around the batteries is covered with gravel and kept weed-free to reduce fire risk.

Idaho Power worked with the Boise Fire Department and other emergency response agencies on a plan for preventing and responding to potential fires around the batteries and substation property. Idaho Power developed a robust environmental and fire-mitigation plan for the safety and health of employees, neighbors, and the public.

What do the batteries sound like?

This battery system includes cooling systems, inverters, transformers, and other electrical equipment.   Due to screening and distance, it sounds similar to substation equipment at the fence line.

When will these batteries be installed?

Idaho Power finished construction of the batteries, associated equipment, the fence, and landscaping in 2026.

Questions?

Contact Residential and Commercial Energy Advisor John Neddo.