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.

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How to Navigate LA Tech Week 2026

🔦 Spotlight

Happy Friday, Los Angeles.

Next week, hundreds of tech events will take over the city, bringing founders, investors, engineers and creators together from October 12 through 18.

Calling LA Tech Week a conference does not quite capture the experience.

Presented by Andreessen Horowitz, Tech Week is a decentralized collection of panels, workshops, demonstrations and gatherings hosted independently by startups, venture firms and technology companies. There is no convention center or central stage. The programming stretches from Santa Monica and Venice to Culver City, Downtown, El Segundo and beyond.

In other words, the city is the venue.

AI remains the dominant theme for 2026, appearing across enterprise software, healthcare, finance, media and the creator economy. The schedule also reflects industries where Los Angeles has built a particular advantage, including aerospace, defense, robotics, advanced manufacturing, entertainment and consumer technology.

That range is what makes LA Tech Week distinct. It brings together the software companies shaping what comes next with the industries that already define Southern California.

The challenge is deciding where to show up.

Our advice: apply early and organize your schedule by neighborhood. Crossing from Santa Monica to Downtown may look manageable on a calendar created by someone who has never driven in Los Angeles.

To help you spend more time meeting people and less time crossing the city, we have organized each day’s events by location:

You can also browse the complete official LA Tech Week calendar.

Plan carefully, but do not fill every minute. The best conversation of the week may be the one that was never on your calendar.

More from this week’s LA startup and venture scene below.

🤝 Venture Deals

    LA Companies

    • El Segundo-based Gallatin AI raised a $50M Series A from new and existing investors including 8VC and Silent Ventures, bringing its total funding to $70M. The defense technology startup will expand its engineering team and advance Navigator, an AI platform that helps U.S. military units coordinate vehicle readiness, supplies, medical logistics and other mission-support operations. - learn more
    • Pasadena-based quantum computing startup Oratomic raised a $475M Series B at a $5.4B valuation, just three months after its Series A. ARCH Venture Partners, Spark Capital, Khosla Ventures, Index Ventures, General Catalyst and Bezos Expeditions co-led the round, bringing Oratomic’s total funding to $775M as it works toward a commercially viable, fault-tolerant quantum computer by 2030. - learn more
    • Torrance-based Fortastra raised a $30M Series A led by First In, with participation from Upfront Ventures, Space Capital, Rsquared, Side Door Ventures, ATX Ventures and existing investors. The company will use the capital to develop its next-generation maneuverable spacecraft, expand its engineering and operations teams and scale production of systems designed to protect critical assets in orbit. - learn more
    • Parallel Systems raised a $100M Series C led by AVP, with participation from Hillspire, Agility Global, Cobalt Capital, Anthos Capital, Congruent Ventures, Riot Ventures and Collaborative Fund. Founded by former SpaceX engineers, the company will use the funding to scale production and commercial deployment of its autonomous, battery-electric Panther rail vehicles, which are designed to make short-haul freight more competitive with trucking. - learn more
    • Gaming studio Gardens Interactive secured more than $35M in a Series B led by Lightspeed, with participation from Sequoia Capital, Index Ventures, Accel, Innovation Endeavors, Zenith Capital and other investors. The company will use the funding to launch and operate its debut social role-playing “strandbox” game, an evolving multiplayer world shaped by players’ actions and interactions. - learn more
    • Outer Spaces raised an $8M pre-seed round led by Upfront Ventures, with participation from Unlock Venture Partners, Mucker Capital and Genius Ventures. The startup is developing outdoor furnishings with integrated solar panels and batteries, turning backyards into sources of clean energy and backup power. - learn more
    • Furientis raised a $25M seed round led by Benchmark at a reported $125M valuation, following a $5M pre-seed announced in May. The defense startup will use the capital to scale production of lower-cost missile interceptors designed to be assembled quickly with readily available components, with a long-term goal of producing 1,000 systems annually at each factory. - learn more
    • Hiyo raised a $20.8M Series B led by Constellation Brands, with returning investor Live Nation also participating. The nonalcoholic beverage company will use the funding to expand its adaptogen- and nootropic-infused social tonics across more than 13,000 retail locations while growing its presence at hospitality venues and live events. - learn more
    LA Venture Funds
    • Navitas Capital participated in Vesta’s $30M Series B, which was led by Conversion Capital and included backing from several major mortgage lenders and financial institutions. The company will use the funding to scale its AI agents across mortgage origination, automating tasks such as application reviews, underwriting decisions and closing-document checks. - learn more
    • MTech Capital led Nettle’s oversubscribed $4.8M seed round, with participation from Project A Ventures, Sure Valley Ventures, Portfolio Ventures and Ventures Together. The insurtech startup will use the funding to expand across the U.S. and Europe while growing its AI platform, which helps commercial insurers identify property risks, accelerate inspections and generate reports. - learn more
    • Bonfire Ventures doubled down on Santé by participating in the company’s $15M Series A, which was led by FINTOP and included other returning investors. The New York startup will use the funding to expand its AI-powered operating system for independent wine and liquor stores, which combines point-of-sale, e-commerce, payments, inventory and marketing tools in one platform. - learn more

    LA Exits

    • Winnow Solutions was acquired by Marina del Rey-based Spring Labs, with financial terms undisclosed. Winnow’s attorney-built library of more than 100,000 state and federal regulatory requirements will become a core part of SpringGRC, helping financial institutions connect changing laws directly to their compliance policies, controls and workflows. - learn more

      Download the dot.LA App

      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

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