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 plans to install batteries on approximately 10 acres at our Boise Bench Substation property on Amity and Holcomb roads. At full buildout, these batteries will have a total capacity of up to 300 megawatts — enough to power 100,000 homes for four hours during times of peak demand.

Why are these batteries needed?

As our customers’ needs grow, Idaho Power must invest in new 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 might see on a semi-truck or rail car. Idaho Power plans to install physical barriers to screen neighbors’ view of the batteries. We’re working out details for these barriers.

Are the batteries safe?

The batteries Idaho Power plans to install feature industry-leading safety systems and top-of the-line remote monitoring and operation capabilities. The batteries will sit on concrete pads. They will be 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 will have a comprehensive fire monitoring system.

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

Idaho Power is working 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 is developing 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 will include cooling systems, inverters, transformers, and other electrical equipment.   Due to screening and distance, we expect it to sound similar to substation equipment at the fence line.

When will these batteries be installed?

Idaho Power plans to apply for all required city of Boise permits in 2024. We expect to develop the project in two phases: 200 MWs in 2025 and the first half of 2026, with an additional 100 MW at an undetermined date.

Questions?

Contact Residential and Commercial Energy Advisor John Neddo.