Hendershot Fuelless Generator Plans — Build a Generator With No Fuel Costs

A fuelless generator is a device designed to produce electrical power without consuming gasoline, diesel, propane, or any other combustible fuel. The Hendershot fuelless generator is based on magnetic induction principles discovered in the 1920s by inventor Lester J. Hendershot. The device uses permanent magnets, copper coils, and capacitors arranged to create electromagnetic induction — the same principle that makes all electric generators work, but without requiring an external fuel source to spin a turbine.

According to 1928 newspaper reports, Lester Hendershot demonstrated a device that operated without gasoline or other fuel. The modern DIY guide teaches you to build a generator based on these historical designs using neodymium magnets and electromagnetic coils. However, claims of self-sustaining or over-unity operation are scientifically disputed by mainstream physics, which holds that energy cannot be created from nothing. The device may produce small electrical outputs through magnetic induction, but buyers should approach no-fuel claims with appropriate skepticism.

A typical gas generator consumes $10-$30 of fuel per day during continuous operation. Over a year of occasional use (weekends, emergencies), fuel costs can reach $500-$1,500. A fuelless generator eliminates these ongoing fuel expenses entirely. The Hendershot Generator DIY guide costs $29-$49.95 and parts cost approximately $45-$100, meaning the total investment of $74-$150 pays for itself in fuel savings within the first few months of regular use — if the device performs as claimed.

In February 1928, multiple newspapers reported that Lester Hendershot's device was "built on a radio principle." This referred to the use of tuned electromagnetic circuits — similar to how radio receivers capture and convert radio waves into electrical signals. Hendershot's design allegedly used resonant LC circuits (inductor-capacitor combinations) to capture and convert ambient electromagnetic energy into usable electrical power. While radio receivers do convert electromagnetic waves into electricity, the amount of power is typically minuscule compared to household energy needs.

Yes. Gas and diesel generators produce carbon monoxide, nitrogen oxides, particulate matter, and carbon dioxide emissions. A fuelless generator produces zero direct emissions during operation, making it significantly cleaner from an air quality standpoint. There are no exhaust fumes, no noise pollution from engine combustion, and no risk of fuel spills contaminating soil or groundwater. However, the environmental impact of manufacturing the components (magnets, copper wire, capacitors) should also be considered.

The Hendershot fuelless generator differs from gas generators in several key ways: (1) Fuel — Hendershot uses no fuel; gas generators require gasoline or diesel. (2) Emissions — Hendershot produces zero emissions; gas generators emit CO2, CO, and NOx. (3) Noise — Hendershot has no combustion engine noise; gas generators are loud. (4) Maintenance — Hendershot has no oil changes or spark plugs; gas generators need regular maintenance. (5) Cost — Hendershot costs ~$74-$150 total; gas generators cost $300-$2,000 plus ongoing fuel. (6) Power output — Gas generators produce verified kilowatts; Hendershot output claims are disputed.

The Hendershot Generator guide correctly references several established electromagnetic principles: Faraday's Law of Electromagnetic Induction (1831), which states that a changing magnetic field induces voltage in a conductor; Lenz's Law (1834), describing the direction of induced current; Maxwell's Equations (1860s), the foundational equations of electromagnetism; and LC Circuit Resonance, the interaction between inductors and capacitors. These are real, verified scientific principles. However, the claim that these principles can produce net energy output without an energy input violates the First and Second Laws of Thermodynamics.

Yes. The Hendershot Generator DIY guide provides step-by-step blueprints, video tutorials, and a complete parts list. Most builders with basic DIY skills can complete the project over a weekend. Required skills include basic soldering, wire cutting, and drilling. Parts cost approximately $45-$100 and include neodymium magnets, copper magnet wire, capacitors, and basic electrical components. The guide is delivered as an instant digital download with a 60-day money-back guarantee.

Unlike gas generators, which produce deadly carbon monoxide and must never be used indoors, a fuelless generator has no combustion and therefore no carbon monoxide risk. However, any homemade electrical device carries risks of electrical shock, short circuits, and fire. The Hendershot Generator has no UL listing or safety certification. Always follow electrical safety practices: use proper insulation, keep away from moisture, install fuses or circuit breakers, and never connect to household wiring without licensed electrician oversight.

After extensive newspaper coverage in February 1928 — including verification by aviation pioneer W.B. Stout and military testing by Major Thomas G. Lanphier — Lester Hendershot was hospitalized on March 9, 1928. Newspaper reports stated he had received 2,000 volts of electricity during an "experiment." He told doctors he was "just an electrician" and made no reference to his invention. After this incident, Hendershot vanished from newspaper coverage entirely. The device was never commercialized, and the original blueprints were lost to history. Modern researchers have reconstructed the design from period reports and patent filings.