Reliable Diesel Backup Systems, Custom-Built to Outlast the Outage
Power outages are not just a coastal problem. If you are in a rural area with grid instability, running a commercial operation, or preparing your home for a long-term backup system, Greenfield’s HERO generators are built to perform when others do not.
We offer multiple water- and radiator-cooled diesel generator options under our HERO lineup, all engineered by our team and assembled in Wilmington, North Carolina.
Heat • Exchanger • Reliable • Output
Request a Free EstimateHero Generator Specifications
| Generator Name | Power | Gas Type | Engine |
|---|---|---|---|
| H.E.R.O (Heat Exchanger Reliable Output) | 30kW Heat Exchanger “Water” Cooled | Diesel | V3300 Engine |
| Mini-HERO | 8.5kW and 14kW Heat Exchanger “Water” Cooled | Diesel | Lombardini/Kohler Engine |
| RAD.CO (Radiator Cooled version of the HERO) | 30kW Radiator Cooled | Diesel | V3300 Engine |
| RAD.CO (Radiator Cooled version of the HERO) | 14kW Radiator Cooled | Diesel | V1505 Engine |
What Makes the HERO Generator Different?
Greenfield’s HERO generator adapts marine-grade, water-cooled technology used on yachts and ships, to fight corrosive air from the inside out. Here is what else makes the HERO generator so different from other generators on the market:
1. No More salt Air Corrosion
Unlike traditional air-cooled models, the HERO doesn’t pull corrosive salt air through its system. The water-cooled design cools both the engine and the exhaust, which dramatically reduces internal wear, so your generator lasts longer, especially near the ocean.
2. Perfect for Tight Lot Lines
Sometimes homes along the waterfront and in neighborhoods are close together. HERO systems release heat through a water loop, not a hot exhaust blast, so they can be safely placed closer to structures than air-cooled units.
- Use pool water, utility supply, or even a creek
- Discharge via pipe return or cooling tower
- Fits where others won’t
3. runs quieter. Looks cleaner.
The HERO runs at a low 1800 RPM using a diesel engine making it much quieter than 3600 RPM gas generators. The HERO Generator is housed in a sleek, insulated white fiberglass enclosure that blends into high-end homes.
4. Diesel = Safer + Longer Lasting Fuel
- Gas lines corrode and can leak dangerously under pressure
- HERO’s diesel tank is integrated underneath and is less prone to corrosion or ignition
- Diesel burns slower than gas, lasting up to 5x longer per gallon
In a storm or blackout power outage, when refueling is difficult or gas lines lose pressure, HERO keeps going. Plus, we have a fueling truck that can provide your needs in most any weather.
5. Easy to Service, Swap, or Upgrade
The HERO is installed as a portable unit with a quick-connect feature. If service is ever needed mid-storm, a replacement unit can be connected quickly, something no permanent install can offer.
Locally Built Generators. Expertly Installed.
We designed the HERO system here on the North Carolina coast, and we assemble each unit locally. While most generators are made for mass production and mild environments, HERO units are designed for long-life performance even in salt air, tight spaces, or heavy-duty applications.
Greenfield Energy also installs, maintains, and repairs other top generator brands, but there’s no substitute for HERO.
We’re not just electricians. We’re machine people who understand power systems inside and out.
Our HERO units are custom-designed, locally assembled, and supported by a full-service install and repair team.
Greenfield Energy’s HERO system gave me peace of mind through two hurricanes. No issues, no corrosion, and no noise complaints from the neighbors.
— Figure Eight Island Homeowner
Want to Learn More About The Hero Generator?
HERO For Homeowners
Protect your home with the only generator built to last with:
- Free consultations and system recommendations
- Custom quotes for installation and fuel setup
- Ongoing maintenance and service are available
HERO For Contractors & Dealers
Interested in offering the HERO Generator to your customers?
We’re building a national dealer network and want to hear from you. We offer:
- Sales training and technical support
- Wholesale pricing
- Exclusive product access in coastal territories
Not Sure Which Diesel Generator Model You Need?
That’s what we’re here for. Greenfield doesn’t just sell a product, we help you figure out what works best for your property, not just what we have in stock. And we don’t push just one brand.
We carry multiple generator types and compare options based on your layout, fuel access, and load needs.
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Why Traditional Generators Fail at the Coast
Coastal homeowners are used to replacing air conditioning units every 5–7 years. The same applies to most air-cooled generators, even the ones that don’t run constantly. Weekly self-tests and daily exposure to salt air cause accelerated corrosion, especially on metal and radiator parts.
The water-cooled design of the HERO Generator utilizes a homeowners pool, irrigation, well, city, pond, or seawater to cool the engine and exhaust. The emergency run switch on the generator overrides controls to ensure operation in catastrophic events. A remote radiator option is also available if there is no water source. We offer professional installation locally for the HERO Generator.
Download Our Hero brochure
