An Everett Transit employee walks between two electric buses, which are marked with a lightning bolt decal, on June 27 at the Everett Transit facility. (Ryan Berry / The Herald)

An Everett Transit employee walks between two electric buses, which are marked with a lightning bolt decal, on June 27 at the Everett Transit facility. (Ryan Berry / The Herald)

Old batteries get new life as Everett Transit backup energy

Company BattGenie set up a container with dozens of used electric bus batteries that charge during non-peak times.

Old bus batteries are getting new life as a backup power supply for Everett Transit.

BattGenie, a startup based in Austin, Texas and Seattle that focuses on energy storage and software to manage it, installed the system in January.

Everett’s not paying anything for the unit housed in a small shipping container on a corner of its Cedar Street lot. The tech hub gets to collect data and test its concept on an open-ended timeline.

The system uses old electric bus batteries from King County Metro that don’t have their full charge capacity.

But the batteries still hold energy. Combined with dozens of others, they have enough charge to power 10 homes for one hour, co-founder and CEO Manan Pathak said during a demonstration last week.

Cost efficiency is a key idea BattGenie wants to explore. Its software analyzes rates and will draw power from the Snohomish County PUD grid to charge during off-peak hours.

Generally power demand is highest between 7 a.m. and 10 p.m., according to the U.S. Energy Information Administration. Instead of tasking someone to work overnight to charge the BattGenie supply, software can trigger when it draws power — and how much — so it happens during off-peak hours around midnight.

Everett Transit leaders discuss the new BattGenie system June 27 at the Everett Transit bus yard. The system uses old bus batteries as a backup power source. (Ryan Berry / The Herald)

Everett Transit leaders discuss the new BattGenie system June 27 at the Everett Transit bus yard. The system uses old bus batteries as a backup power source. (Ryan Berry / The Herald)

Then it’s available to flow into the Everett Transit base’s supply and mitigate the amount coming from the general grid.

Everett Transit tries to keep its nine battery electric buses in service during peak-charge hours. But if they’re running out of power, it’s important to plug them in regardless of time.

The city doesn’t have an energy management software system yet, but plans to get one eventually, Everett Transit director Tom Hingson said. So when the buses are plugged in, they’re charging. But something like BattGenie can cut the cost or tell when to juice at full power, similar to how some smartphones will charge slower overnight.

“If we’re charging during the peak time, a portion of our peak-hour charge is coming from the stored energy,” Hingson said.

Snohomish County PUD expects higher peak demand for energy as more cars, bikes, buses, lawnmowers, scooters, tools and trucks go electric, energy management engineer Rob Marks said. PUD leaders want to shift some of the demand load to non-peak times, to avoid buying electricity from other utilities that rely on fossil fuels that contribute to climate change.

Everett Transit director Tom Hingson, left, asks BattGenie co-founder Chintan Pathak about the thousands of battery cells stored inside a container at the Everett Transit bus yard June 27. (Ryan Berry / The Herald)

Everett Transit director Tom Hingson, left, asks BattGenie co-founder Chintan Pathak about the thousands of battery cells stored inside a container at the Everett Transit bus yard June 27. (Ryan Berry / The Herald)

Repurposing old batteries can help shift load for now. The small shipping container houses dozens of batteries, but eventually BattGenie’s leaders hope it can scale even larger.

“It’s small and easily maintained,” cofounder and chief operating officer Chintan Pathak said.

Some of BattGenie’s early data seemed promising for prolonging battery life. Bus batteries have about 900 charge cycles. Managed optimally, it can reach 1800 and double the life to 14 years, Chintan Pathak said.

“Your vehicle can drive more miles before a charge,” he said.

The battery system is one item in a growing list of ways Everett Transit is investing in electric buses.

Everett Transit expects to put 10 more electric buses into service next year. All of the new buses can be powered through inductive charging, similar to wireless charging for smartphones.

Inductive charging stations are installed in the road. Buses park over them and charge without needing to plug in. The city plans to put them at College Station, Everett Station and Seaway Transit Center by early next year, if not earlier. Another set, paid for by the Snohomish County PUD’s Department of Commerce grants, are going in at Eclipse Mill Park near the riverside development.

Everett’s fleet of 41 buses are on track to be all battery electric by 2028.

Have a question? Call 425-339-3037 or email streetsmarts@heraldnet.com. Please include your first and last name and city of residence.

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

Employees and patrons of the Everett Mall signed a timeline mural that traces the history of the 51-year-old indoor mall that was once considered the premier place to go shopping in the city. Thursday, March 20, 2025 (Aaron Kennedy / The Herald)
Mall mural offers nostalgic trip into the past

Past and present Everett Mall employees joined customers Thursday to view an artistic timeline of the once popular shopping mecca.

Edmonds Mayor Mike Rosen gives his State of the City address on Thursday, March 20 in Edmonds, Washington. (Will Geschke / The Herald)
Edmonds mayor talks budget at 2025 State of the City

Mayor Mike Rosen discussed the city’s deficit and highlights from his first year in office.

Public’s help needed to find missing Arlington man

The 21-year-old left the house Sunday night without his shoes, cell phone or a jacket, and was reported missing the following morning.

The Marysville Tulalip Campus on the Tulalip Reservation, where Legacy High School is located. (Will Geschke / The Herald)
Marysville board votes to keep Legacy High at current location

The move rolls back a decision the school board made in January to move the alternative high school at the start of next school year.

The former Marysville City Hall building along State Avenue on Tuesday, April 30, 2024 in Marysville, Washington. (Olivia Vanni / The Herald)
City of Marysville, school board amend property exchange

The city will relocate its public works facility to the district’s current headquarters, which will move to the former City Hall.

Snohomish County Elections employees Alice Salcido, left and Joseph Rzeckowski, right, pull full bins of ballots from the Snohomish County Campus ballot drop box on Monday, Nov. 4, 2024 in Everett, Washington. (Olivia Vanni / The Herald)
County to mail ballots for Edmonds, Brier elections

Registered voters should receive their ballots by April 9 for the April 22 special election.

A stormwater diversion structure which has been given a notice for repairs along a section of the Perrinville Creek north of Stamm Overlook Park that flows into Browns Bay in Edmonds, Washington on Thursday, July 18, 2024. (Annie Barker / The Herald)
Edmonds Hearing Examiner decides on Perrinville Creek saga

The examiner revoked the city’s Determination of Non-Significance, forcing Edmonds to address infrastructure issues on the creek

Don Sharrett talks John Wrice through his trimming technique on Friday, March 14, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Everett barber school offers $5 haircuts — if you’re brave enough

Students get hands-on practice. Willing clients get a sweet deal.

Our Lady of Hope Fr. Joseph Altenhofen outside of his parish’s building that will be the new home of Hope ‘N Wellness on Wednesday, March 5, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
New Hope ‘N Wellness location to open Wednesday in Everett

Our Lady of Hope Church will host the social service organization at 2617 Cedar St. in Everett.

Amtrak Cascades train 517 to Portland departs from Everett Station on Saturday, Sep. 2, 2023, in Everett, Washington. (Ryan Berry / The Herald)
Limited train service to resume on Amtrak Cascades

Trains will have less capacity for now, but service is expected to resume for some routes as early as Tuesday.

Marysville
Police: 66-year-old Marysville man dead from fatal stabbing

A neighbor found the man unconscious on the sidewalk as the result of an apparent stabbing. Police said they are looking for suspects.

Logo for news use featuring Snohomish County, Washington. 220118
Driver, suspected of DUI, hits WSP vehicle on I-5 near Everett

The trooper was blocking the HOV lane for a previous collision when his vehicle was struck Saturday morning.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.