6.75% of U.S. homes have one. Amazon wants a lot of them.

Today, I'm digging into Generac Holdings (GNRC).

They build a variety of backup generators. From the home standby units bolted to the side of your house to massive units that power hyperscale data centers running when the grid quits.

This morning Generac disclosed a supply deal with Amazon worth $2.4 billion in initial deliveries and up to $8 billion over time. The stock jumped 18% today.

A few things that stood out to me:

• A growing AI/data center story. Residential is still over half of revenue and moves with hurricane season. Commercial and industrial sales grew 29% last quarter on data center demand, the data center backlog sits at $1.6 billion before Amazon, and management is guiding that segment to be up another 30%-plus in 2027.

• Amazon took warrants on 1.69 million shares at $200.93 that vest as its cumulative purchases climb toward $8 billion. I wish I was a big enough customer to be able to get equity in the companies that I do business with along with my purchases!

• They have a large dealer network (~10,000 dealers/channel partners). Generac runs national TV to create demand, routes the lead to an independent dealer, and the dealer installs and services the unit.

• FY2025 revenue fell 2% and operating income fell 46%, thanks to a quiet hurricane season and a $104.5 million legal settlement on a portable generator product liability case.

• The stock went from $279 in mid-June to $175 two days ago. Today's pop got it back to $207. There seem to be competing narratives among investors:

  • One group is compressing multiples due to their reliance on weather patterns.

  • Another is betting on a continuing infrastructure/data center growth story.

To be honest, there aren't a ton of key takeaways on this one for me. That said, I do think we should all try to identify models that can be grown via a capital-light dealer model while always being on the lookout for new markets to sell our products into.

Generac will be a fun company to follow, as it's an obvious beneficiary of the data center explosion that's underway.

With that, I'll see you in a few days.

Nick

TL;DR

• Generac is the dominant US home standby generator brand and a growing supplier of large industrial generators, based in Waukesha, Wisconsin.

• FY2025 revenue was $4.2B: residential $2.27B (down 7%), C&I $1.46B (up 5%), other $485M. Data centers have been driving the growth.

• Today's Amazon deal: $2.4B of deliveries in 2027-2028, up to $8B cumulative, with warrants that vest as Amazon buys.

• Gross margin has climbed from 33.9% (FY2023) to 39.5% TTM, helped in Q2 2026 by ~$71M of tariff refunds.

• The stock is up 14.3% over the past year after today's jump, versus Cummins at +29.1% and Enphase at -7.0%. The 5-year return is -52.4% off the September 2021 peak.

• Operator lesson: build the demand engine yourself, then let partners do the labor.

The 30,000-Foot View

Generac makes money three ways.

Residential ($2.27B in FY2025, 54% of revenue): automatic home standby generators from 7.5kW to 150kW, plus portables, pressure washers, energy storage (PWRcell), and the ecobee smart thermostat business. Home standby is the profit engine. Generac creates demand with national advertising, then hands the lead to an independent dealer who sells the install. Residential adjusted EBITDA margin was 34.7% in Q2 2026.

Commercial & Industrial ($1.46B, 35%): standby generators up to 3,250kW, mobile generators and light towers for rental fleets, and custom switchgear from the Enercon acquisition. Customers include telecom, healthcare, municipalities, and hyperscale data center operators. C&I margins run lower (14.6% adjusted EBITDA in Q2 2026) because the buyers are fewer and bigger.

Other ($485M, 11%): aftermarket parts, extended warranties, and service. Extended warranties alone were $219M in FY2025, the stickiest revenue in the building.

Key Stats

• Market cap: ~$12.2B

• TTM revenue: $4.4B

• TTM gross margin: 39.5%

• TTM net income: ~$258M

• 1Y total return: +14.3%

• Employees: ~9,400

• Industry: Industrial machinery

Company History

• 1959: Robert Kern founds Generac in Waukesha, Wisconsin, building portable generators, for years as a private-label supplier to Sears.

• 1989: Launches the first affordable automatic home standby generator, the category that defines the company today.

• 2006: CCMP Capital buys the company in a leveraged buyout. Aaron Jagdfeld, CFO since 2002, becomes CEO in 2008.

• 2010: IPO on the NYSE at $13 a share.

• 2011-2016: Rolls up Magnum Products (light towers), Ottomotores (Mexico), and Pramac (Italy), building the C&I business.

• 2019-2021: Pushes into clean energy with Pika Energy and Neurio (PWRcell storage), then buys ecobee for roughly $770M in late 2021. Stock peaks above $500.

• 2022-2023: Clean energy stumbles, including a defective PWRcell component that later costs a $15M class action settlement. The stock loses two-thirds of its value.

• 2025: Hyperscale data center customers show up in the backlog. Q4 brings a $104.5M legal provision and a net loss.

• 2026: Buys Enercon (switchgear) and a Belvidere, Illinois plant for large-megawatt packaging. In September, Amazon signs a supply agreement worth up to $8B and takes warrants.

Show Me the Money

Standout financial features:

• FY2025 revenue slipped 2% to $4.21B because residential fell 7% in a quiet outage year, and operating income dropped from $537M to $289M, with $104.5M of that from the legal settlement. Strip that out and operating income still fell about 27%. Weather is a real input to this P&L.

• Gross margin has expanded 560 basis points since FY2023, to 39.5% TTM. Q2 2026 hit 44.5%, though ~$71M of tariff refunds added about 6 points to that quarter. The underlying number is closer to 38-39%.

• Net debt came down from $1.53B to $1.25B while the company bought back roughly $550M of stock across FY2023-2025 and closed Enercon. Q2 2026 buybacks were zero. The cash is going into capacity now: TTM CapEx of $169M is up 31% from FY2023.

• Inventory sits at $1.24B, or 168 days on hand. Generac has to build ahead of storms, and now ahead of data center deliveries it has promised.

Financial Data

TTM runs through June 30, 2026. Net debt ticked back up in H1 2026 on Enercon and the Belvidere plant.

Stock Performance

1-year head-to-head vs. peers:

Before today's Amazon announcement Generac was down 3.4% over the past year. One press release moved the 1-year return by 18 points, which tells you how much of this valuation now rides on data center orders. Cummins has been the steady way to own data center backup power.

The N.O.O.B. Nine — Competitive Powers

The Nerd Out on Business Nine is made up of Hamliton Helmer's famous "7 Powers" of competitive advantage (Scale Economies, Network Economies, Counter-Positioning, Switching Costs, Branding, Cornered Resource, and Process Power) combined with two of my own (Data Flywheel and Distribution Advantage).

Average Score: 3.3/5 - a brand-plus-distribution moat in residential, with a data center business that is still earning its position order by order.

Memorable Marketing

Generac's residential playbook is a direct-response funnel with a national TV budget on the front end and thousands of local dealers on the back end.

Notable tactics:

• Outage fear, on a schedule (ongoing): TV spots like "Be Prepared: Power Outage," "Real Threat," and "Power Stays On" run heaviest around hurricane season, when homeowners are already thinking about it. The creative is blunt: the lights go out, then they come back on.

• Free in-home assessment as the call to action: Every ad drives to a free quote from a local dealer. Generac captures the lead nationally, then hands it to the installer closest to the house. The dealer gets a warm lead; Generac gets attribution.

• Monthly payment framing: Spots advertising "$0 down and monthly payment options" turn a $10,000-plus install into a utility-bill-sized decision.

• Dealer co-branding: Authorized, Premier, and Elite dealer tiers give installers a badge for their trucks and websites, which extends the brand to thousands of local businesses at no cost to Generac.

Tactical takeaways:

1. Time your spend to when the customer is already scared, curious, or in-season.

2. Own the lead, even if a partner closes the sale.

3. Reframe a big-ticket price as a monthly number.

4. Give your channel partners a badge they want to display.

AI Uses & Opportunities

Current exposure:

• The biggest AI exposure is on the demand side: hyperscale data centers need backup generators for every megawatt of compute they build, and Generac's C&I segment is now growing on that order flow.

• Mobile Link remote monitoring and ecobee's home energy management platform generate the raw data. Generac has talked about grid services and demand response using its installed base.

Future opportunities:

• Predictive maintenance: Mobile Link already knows when a unit ran its weekly exercise cycle. Flag the ones about to fail before a storm and sell the service call proactively.

• Storm-driven inventory positioning: use weather models to pre-stage units and dealer inventory regionally and cut the 168 days of inventory this business carries.

• Lead scoring across the dealer network: route the highest-intent leads to the highest-closing dealers, wherever they sit.

Bumps in the Road

• Weather is the residential demand driver, and it doesn't take orders. FY2025's 7% residential decline came from a quiet storm year. A few quiet years in a row would hurt.

• The data center business is concentrated. Two hyperscale customers, one of which now holds warrants, account for most of the growth story. If either slows its buildout, the C&I growth guide goes with it.

• Capacity is going in ahead of revenue. New plants in Beaver Dam, Sussex, and Belvidere plus Enercon need to be filled, and the Q2 buyback pause shows where the cash went.

• Product liability keeps showing up. A $15M PWRcell settlement, then a $104.5M portable generator provision in Q4 2025. Selling engines to consumers carries a tail.

Your Swipe File

• If you run a partner channel, own the marketing lead generation yourself. Generac drives the marketing and hands leads to dealers. this allows the company to maintain its brand equity while benefiting from the marketing data

• Always be on the lookout for new markets for your products. Obviously!

• Their aftermarket business is nicely recurring and high-margin. Extended warranties, parts, and service were $485M of revenue last year and they arrive whether or not the wind blows.

• When a big customer wants to lock you in, consider letting them own a piece. Amazon's warrants cost Generac some dilution and bought a customer with a reason to hit $8B.

• Many businesses optimize for having as little inventory as possible, but when customers need your product (like they do generators during a hurricane), having ample inventory on hand opens the door to easy revenue and better margins.