Generac Holdings Inc.
Generac Holdings Inc. designs, manufactures, and distributes energy technology products and solutions worldwide. The company offers residential automatic standby generators, automatic transfer switch, air-cooled engine home standby generators, and liquid-cooled engine generators; Mobile Link, a remote monitoring system for home standby generators; propane tank monitoring solution; and smart home solutions, such as smart thermostats and a suite of home monitoring products. It also provides smart home energy management devices and sensors for heating and cooling system; smart doorbell cameras; and portable and inverter generators; multiple portable battery solutions; manual transfer switches; outdoor power equipment, including trimmers, field and brush mowers, log splitters, stump grinders, chipper shredders, lawn and leaf vacuums, and pressure washers and water pumps; and home energy storage systems. In addition, the company offers commercial and industrial products comprising cleaner-burning natural gas fueled generators; mega-watt diesel generators; light-commercial standby generators and related transfer switches; stationary generators; single-engine industrial generators; industrial standby generators; industrial transfer switches; light towers, mobile generators, commercial mobile pumps, heaters, and dust-suppression equipment; mobile energy storage systems; battery energy storage system and related inverter products; and aftermarket service parts and product accessories. Further, it provides microgrid; and software-as-a-service contracts. The company distributes its products through independent residential dealers and contractors, industrial distributors and dealers, national and regional retailers, e-commerce partners, electrical/HVAC/solar wholesalers, solar installers, catalogs, equipment rental companies, and other equipment distributors; and directly to end users. Generac Holdings Inc. was founded in 1959 and is based in Waukesha, Wisconsin.
What does it do?
Generac makes the generators you see humming outside houses after a hurricane or ice storm knocks out the power. Their flagship product is a home standby generator — a permanently installed unit, usually powered by natural gas, that kicks on automatically within seconds of a power outage. Think of it like a whole-house backup battery, but one that runs on your gas line instead of charging overnight. They also make portable generators, industrial power equipment, and increasingly, home energy management systems like smart thermostats and solar battery storage.
Power outages in the US are getting longer and more frequent due to aging grid infrastructure and extreme weather events — and that trend is only accelerating as AI data centers and EV charging put more strain on the grid. Generac is the dominant brand in residential standby generators, holding roughly 75-80% US market share, which means it is essentially a proxy bet on America's deteriorating electrical grid. Investors also care because the company is trying to evolve from a 'disaster purchase' into an everyday home energy platform, which would dramatically change how recurring and predictable its revenue is.
How does it make money?
Generac makes most of its money selling generators — both the big permanent home standby units (its highest-margin product) and smaller portable ones you'd buy at a hardware store before a storm. In its latest fiscal year, it generated $4.2 billion in revenue, slightly down from $4.3 billion the prior year, reflecting a post-pandemic hangover after a massive surge in demand. A growing second revenue stream comes from its clean energy segment, which includes home battery storage systems, solar inverters, and energy management software acquired through buyouts like Pika Energy and Chilicon Power. Service, parts, and its dealer network also contribute, creating some stickiness once a customer has installed a Generac system.
Why do investors care?
The core bull story is simple: the US power grid is broken, and fixing it will take decades, meaning demand for backup power is structural, not just cyclical. Every major hurricane, Texas freeze, or California wildfire season is effectively a Generac sales event. The more exciting growth story is in clean energy — if Generac can become the device that manages your solar panels, home battery, and grid connection all at once, it shifts from a one-time hardware sale to an ongoing energy services relationship. For that to pay off, Generac needs to execute on integrating its acquisitions, fend off competition from Tesla's Powerwall and others, and convince homeowners to think of it as an energy brand, not just an emergency brand.
Deep Dive
MemberA full investor briefing on Generac Holdings Inc. — history, leadership, risks, and outlook.