Goodbye, Diesel: Inside Romeo Power’s Plan to Electrify Trucks Nationwide

Samson Amore

Samson Amore is a reporter for dot.LA. He holds a degree in journalism from Emerson College. Send tips or pitches to samsonamore@dot.la and find him on Twitter @Samsonamore.

Goodbye, Diesel: Inside Romeo Power’s Plan to Electrify Trucks Nationwide

At a time when most electric vehicle manufacturers are struggling to deliver cars or finance their operations, electric battery maker Romeo Power is surging ahead. The five-year-old company founded by former SpaceX and Tesla engineers manufactures and sells renewable electric batteries to the makers of delivery vehicles and long-haul trucks.

The company went public last December and so far this year has reported $47.5 million in income, compared to a net loss of $22.7 million this time last year.


Romeo Power President and CEO Susan Seilheimer Brennan said the company has secured orders from several buyers — though she won't disclose who — including at least one commercial customer in Southern California. To keep up with demand, the company will be moving to a new 215,000 square-foot headquarters in Cypress from their home base in Vernon. The layout will give Romeo more lab space to develop new battery products.

But Brennan has larger goals. She wants to electrify the pollution-emitting trucking industry, one fleet at a time.

Romeo Power President and CEO Susan Seilheimer Brennan Romeo Power President and CEO Susan Seilheimer Brennan

With over three decades of experience in the auto industry under her belt, she has worked at legacy auto manufacturers including running plants at Ford, General Motors and Nissan, where she led development of its electric Nissan Leaf vehicle and was the vice president of Nissan North America's manufacturing. Right before coming to Romeo, Brennan was the chief operations officer for San Jose-based clean energy firm Bloom Energy.

Brennan spoke with dot.LA over the phone to discuss Romeo's recent earnings and how its business might be able to mitigate the damage the trucking industry is causing to our planet.

This interview has been lightly edited for length and clarity.

What are some of the buyer concerns you've had to address and what converts them?

The number one concern is reliability. Trucking companies are only making money when the truck is moving, so if there is an issue with reliability, and the truck isn't moving, that's their most significant issue. You can have whatever opinion you have on diesel, (but) there's probably 100 years of reliability data on diesel. It's challenging to make change anyway, it's exceptionally challenging to make change, when the incumbent has most of the attributes that are most important to the customer.

Today diesel has the reliability. (But) it's noisy, which is something I hadn't thought of until I heard one of our customers on a panel speaking about truck drivers they had interviewed after driving our product and how the (electric) driving experience is so much better for them — it's quieter, it doesn't rattle them to death, they can see that their knees and their backs will take much less wear and tear.

But if you look at just the pure economic model, we need to make sure that we are not having any negative impact on distance, charge time (which would be the equivalent of filling it up with diesel) and reliability.

People generally will convert based on total cost of ownership.We're in a little bit of a unique situation, because we're not selling the vehicle, so we have to convey that our piece of the total cost of ownership of their vehicle is a sell.

What in your background drew you to working with Romeo Power? What about the company made you decide to take the role of CEO?

I'm passionate about solving really, really hard problems — that's my passion and that's followed me throughout my career. I grew up in a steel town, so air quality is more than just theoretical. For me it's something I'm very passionate about, and my family still lives in that field town.

So I want to see American manufacturing be successful and I completely believe that manufacturing and communities can coexist, if done the right way. What I saw in my community — what is now known as the rust belt — is these factories pollute or these industries pollute, so let's move them somewhere else and that's not the right answer. The right answer is to figure out how to make the factories better and make the communities better and have that coexistence.

Now I find myself taking my scientific background, my automotive experience, and my energy experience along with my passion for technology and for a planet that everyone can coexist in and putting that all into Romeo power. Being on the board of Romeo got me immersed into the auto industry from a 50,000-foot level. So the reason I chose Romeo was really that it is a company that's trying to solve really hard problems.

Romeo Power's electric batteries. Romeo Power's electric batteries.

What are your goals for Romeo Power's upcoming next fiscal year? Where's the company headed?

Our goal is to sell to vehicle manufacturers that have fleets.

With our customers right now, because our goal is to have as much range as possible. So the vision that I painted for my team is let's understand what drivers do today, and how do we make that trip the same for them, if you can imagine a charger there instead of a gas pump. Ultimately, our goal has to be that we don't add any more burden to the user of the product, we actually take away the burden.

For us to be relevant and stay relevant, we have to grow very quickly. We have backlog (and) we have to satisfy our customers. So in order to do that, we need to take the customers that we have today and have commitments to and fill those orders.

Why open the new facility in Cypress?

The reason that we are successful with the technology is we have manufacturing and engineering under the same roof. As new opportunities, new players and new technology arises, we can test it immediately. So we have engineering, testing and production all under one roof. But we are exploding the roof (in Vernon) right now. We could have left production here and used the floor here for manufacturing and moved engineering and the corporate offices, but it's really imperative for us to keep everybody together for now.

We have about 250 employees and are growing, and we are hiring - we need manufacturing engineers, we need manufacturing technicians. We need (research and development) engineers (and) we need salespeople.

How has the demand for Romeo's power supply changed the business?

So, right now, what we're working on is meeting the demand that has been created. The transition you're seeing is coming out of our backlog, we're converting those orders.

We understand what it takes to build the battery, you know, the industrialization of the battery, we now are targeting people that we are confident will benefit from our battery. We are really working hard so that people can come here and touch and see the product, and drive demand with you know, with reality. So we're here in a real factory, we have real products, we have real throughput.

There's always a fair amount of skepticism when you're changing something, and changing something as significant as a powertrain on a vehicle but we now are very comfortable that we have the visibility and the credibility to start bringing it to customers.

Does being an independent battery manufacturer have any benefits or drawbacks attached?

Clearly if you have the support of a major company some things are easier but what is harder is getting these really interesting technologies through the bureaucracy.

The reason that I enjoy working at Romeo is… if you look at the speed at which innovation comes out of these very large companies, in my opinion, it is much slower than the speed at which innovation comes out of a nimble and smaller company.

https://twitter.com/samsonamore
samsonamore@dot.la
LA Tech Week 2026: Sunday’s Event Lineup

🔦 Spotlight

LA Tech Week 2026 closes Sunday with one final day of events across Los Angeles. We have organized the remaining lineup by neighborhood so you can finish the week with a few last conversations before everyone returns to their regularly scheduled inboxes.

ARTS DISTRICT

12:00 PM

CARSON

12:00 PM

CULVER CITY

9:00 AM

  • Women in Cleantech & Sustainability Hike and Network: See Details Here
    Women in Cleantech & Sustainability

6:00 PM

  • Founders pitch competition: See Details Here
    Biomorphix solutions, Nightingale regenerative

HOLLYWOOD

10:00 AM

4:00 PM

  • AI International: Film, Music Video & Micro-Drama: See Details Here
    AI International Film Festivals

MID CITY

1:00 PM

OTHER

12:00 PM

  • ORGANIC LIFE LABS™ PRESENTS THE ALIGNMENT LAB: The Science of human performance: See Details Here
    The Blue Room Collective

SANTA MONICA

8:00 AM

1:00 PM

6:00 PM

SOUTH LA

2:00 PM

  • Future Builders : Family STEM Day: See Details Here
    Black L.A. Tech Week (Community Collective)

VENICE

10:00 AM

12:00 PM

  • How to Raise Funds to Fund Any Business Using Digital Products.: See Details Here
    DN Events

VIRTUAL

5:00 PM

WEST HOLLYWOOD

3:00 PM

Each session provides unique opportunities to gain insights, network, and explore various fields of tech innovation. For updates or more event information, visit the official Tech Week calendar.

Download the dot.LA App

LA Tech Week 2026: Saturday’s Event Lineup

🔦 Spotlight

LA Tech Week 2026 heads into the weekend Saturday with more opportunities to learn, meet fellow builders and explore what is being created across the region. Browse the day’s events by neighborhood below and find the gatherings worth leaving the house for.

ARTS DISTRICT

5:30 PM

BEL AIR

5:00 PM

CULVER CITY

10:00 AM

1:00 PM

4:00 PM

DOWNTOWN

11:00 AM

2:00 PM

  • South Asians in Space, Physical AI: See Details Here
    american south asian network

5:00 PM

7:00 PM

HOLLYWOOD

8:00 PM

INGLEWOOD

10:00 PM

LONG BEACH

10:00 AM

12:00 PM

LOS FELIZ

8:30 AM

  • Griffith Observatory Hike with Longevity Cities & Don't Die LA: See Details Here
    Longevity Cities

MALIBU

5:00 PM

MARINA DEL RAY

9:30 AM

  • The Brazen Capital Walk: Connecting Women, Capital & Opportunity: See Details Here
    BrazenEra

6:00 PM

  • Build an AI workflow editor, natively in Angular: See Details Here
    Workflow Builder

SANTA MONICA

7:00 AM

  • Founders Running Club Run in Santa Monica: See Details Here
    Founders Running Club, MongoDb

9:00 AM

  • MOLTEN - Spatial hackathon (ElevenLabs, AssemblyAI, Rokoko, Datafeel...): See Details Here
    Field Lab

2:00 PM

3:30 PM

6:00 PM

7:00 PM

SOUTH LA

7:00 PM

THE VALLEY

7:30 PM

UCLA

11:00 AM

USC

9:00 AM

10:00 AM

10:30 AM

VENICE

8:00 AM

  • Open Air Health Tech: See Details Here
    Open Air Health Tech, Bowshock, Govitamins App

10:00 AM

10:30 AM

11:00 AM

12:00 PM

6:00 PM

  • Bots, Bytes & Bubbles Benefit: See Details Here
    Distinguished Minds Institute dba thinqueBytes®

VIRTUAL

9:00 AM

  • Ask a VP of Sales: Live GTM Office Hours for Early-Stage B2B Founders: See Details Here
    Kat Rucker Consulting Group

11:00 AM

WEST HOLLYWOOD

11:00 AM

  • The 10x Engineer Showed Up. The 10x Organization Didn't.: See Details Here
    Workflow Builder, Tentaro

3:00 PM

WESTSIDE

11:00 AM

2:00 PM

  • Graphic Design & Digital Printing Meetup: See Details Here
    Big Frog Custom T-Shirts & More of West LA

7:00 PM

WESTWOOD

12:00 PM

Each session provides unique opportunities to gain insights, network, and explore various fields of tech innovation. For updates or more event information, visit the official Tech Week calendar.

Download the dot.LA App

LA Tech Week 2026: Friday’s Event Lineup

🔦 Spotlight

The workweek may be winding down, but LA Tech Week 2026 is not finished yet. Friday’s events are organized by neighborhood below, making it easier to choose where to spend the day before the week shifts into its weekend programming.

ARTS DISTRICT

9:00 AM

7:00 PM

BEL AIR

10:30 AM

  • Bel Air Mansion Creative Brunch: Investors, & Artists: See Details Here
    Amino Capital

BEVERLY HILLS

8:00 AM

  • Founders & Builders: Morning Walk/Run + Coffee Meetup: See Details Here
    FitMatchLA
  • Music-Tech : Move with the Global Ikon & Lululemon: See Details Here
    The Global Ikon

8:00 PM

BRENTWOOD

8:30 AM

CULVER CITY

8:30 AM

  • Where, not How: a Roundtable on Scaling AI Adoption: See Details Here
    Mellonhead, Gamma

11:30 AM

4:00 PM

DOWNTOWN

12:30 PM

  • Rocket Launch: A USC Builders Night by TroyLabs: See Details Here
    TroyLabs - USC's premier startup accelerator

1:00 PM

2:00 PM

  • Inner Alignment: Experience Self-trust in Navigating Complexity: See Details Here
    Meridian Collective

2:30 PM

  • From Story to Revenue: How AI Is Reshaping Microdrama: See Details Here
    Storyverse, Soulscape

3:00 PM

  • Reinventing AI Infrastructure: See Details Here
    Karmel Capital, The University of Michigan Ross School of Business

5:00 PM

  • Built Different: Outliers, Underdogs and the Next Breakout: See Details Here
    Forty.5 Capital Ventures

5:30 PM

6:00 PM

  • The Music AI Can't Hear: What's Actually Missing from the Future of Sound: See Details Here
    Motif

6:30 PM

  • HR & PEOPLE LEADERS ROOFTOP HAPPY HOUR . Leadership Signals: See Details Here
    Speech & Mind

EL SEGUNDO

7:00 PM

HOLLYWOOD

10:00 PM

HOLLYWOOD HILLS

12:00 PM

  • Early stage co-founder matching: Virtual Speed Networking: See Details Here
    Kept

INGLEWOOD

7:00 PM

MARINA DEL RAY

3:00 PM

  • South Asians Shaping Digital Media: See Details Here
    american south asian network

7:00 PM

  • Tech Industry Speed Networking Marina Del Rey: See Details Here
    Los Angeles Fun Events
  • The New Wave: The Future of Hollywood In the Age of AI: See Details Here
    american south asian network

MID CITY

8:00 AM

OTHER

8:30 AM

  • Wedbush Ventures x Women in Product Breakfast: See Details Here
    Wedbush Ventures

10:00 AM

12:00 PM

2:30 PM

5:00 PM

  • Get Wired with Senra Systems!: See Details Here
    Senra Systems, Lowercarbon, Stifel

6:00 PM

6:30 PM

7:00 PM

PASADENA

12:00 PM

4:00 PM

  • Pasadena Ascends: VIP Closing Reception, Hosted by Wedbush: See Details Here
    Innovate Pasadena

PLAYA VISTA

10:00 AM

  • AI LAX Summit - Culture meets AI: See Details Here
    Governlayer.AI, AILAXSUMMIT.com, Google

6:00 PM

SANTA MONICA

8:15 AM

8:30 AM

  • Silicon Beach Volleyball Social: See Details Here
    Holland & Knight, JP Morgan, Mucker Capital

10:00 AM

  • Gen AI Observability for Engineering Leaders: See Details Here
    Amazon Web Services

11:00 AM

1:00 PM

  • Future of Photography : Discussing the future of image capture and IP protection. Cigar Lounge: See Details Here
    VICEVERSA EDITIONS
  • Self-Host Frontier AI: Running Open-Weight Models on AWS: See Details Here
    Amazon Web Services

3:00 PM

5:00 PM

  • Gold House x Speedrun Investors Social: See Details Here
    Gold House Ventures, a16z Speedrun

5:30 PM

  • The Autonomous Playbook: Scaling Revenue faster with AI.: See Details Here
    GrupaAI

6:00 PM

7:00 PM

8:00 PM

SUNSET

7:00 PM

UCLA

6:00 PM

  • The Builder's Lounge - Jazz Bar Demo Night with VEST x Cognition: See Details Here
    VEST at UCLA

USC

Fri, Oct 16 · 5:00pm — Sun, Oct 18 · 5:00pm

Fri, Oct 16 · 5:00pm — Sat, Oct 17 · 5:00pm

VENICE

7:30 AM

9:00 AM

  • Content in Tech: Coffee & Creators: See Details Here
    Narrative Content Studio, YT Jobs

11:00 AM

12:00 PM

  • What REALLY Happens After You Raise (But No One Talks About) - Funded Founder Lunch @: See Details Here
    Grow Through Story

2:00 PM

4:00 PM

5:00 PM

  • Sell before you build: See Details Here
    USC Entrepreneurship and Venture Management Association

6:00 PM

  • A16Z | ElevenLabs - Official Afterparty: See Details Here
    ElevenLabs, a16z Speedrun

7:00 PM

VIRTUAL

9:00 AM

  • Ask a VP of Sales: Live GTM Office Hours for Early-Stage B2B Founders: See Details Here
    Kat Rucker Consulting Group

11:00 AM

  • Vibe Marketing in the Age of AI Agents: Live Workshop: See Details Here
    Juliet AI, Inc.

1:00 PM

2:00 PM

WEST HOLLYWOOD

11:00 AM

7:00 PM

  • NO HUMAN, NO CREATIVITY? Who Creates Culture Now?: See Details Here
    xVibe AI, HFE Events

WESTWOOD

9:00 AM

  • UCLA Tech + Society Conference: See Details Here
    Easton Technology Management Center

Each session provides unique opportunities to gain insights, network, and explore various fields of tech innovation. For updates or more event information, visit the official Tech Week calendar.

Download the dot.LA App

RELATEDEDITOR'S PICKS
Trending