Thunderstorm Generator kit: price, what’s included and what to know

Seller claim

Price and how to order

Thunderstorm.tech lists the kit at $735 in U.S. dollars plus a delivery charge. There is no online checkout: you send a quotation request with your full delivery address, the seller sends a formal quote including freight, and the kit ships by courier after payment.

Kits are made and held in stock in Thailand and shipped worldwide, according to the seller.

Seller claim

What it fits

The kit page says the kit is purpose-built for small gasoline (petrol) generators up to about 12 kW, or 16 horsepower (hp). It is not sold on that page as a car kit.

The university thesis did run a one-vehicle road test, on a 1989 Chevrolet Blazer, using hardware the manufacturer, Plasmoid Power, supplied. That was a research setup, not this kit.

Seller claim

The seller’s own warnings

The assembly instructions say no warranties or guarantees are given on emission cuts or fuel savings, and that neither Plasmoid Power Limited nor Alpha Prospects Limited will be liable.

They say installation means significant changes to the generator, so the generator maker’s warranty “will almost certainly be voided,” and that it needs some engineering skill.

They warn never to run the generator in an enclosed space, because carbon monoxide (CO) is “odorless and colorless and is deadly to humans and animals.” They also say to keep a fire extinguisher at hand and that the unit runs at very high temperatures.

Plain definition

What installing it involves

From the seller’s instructions: drain the fuel, remove the muffler, and raise the fuel tank on threaded rods. Some generators may need a wheel removed or a small piece of frame cut out.

The main unit bolts to the exhaust port with high-temperature sealant that, the instructions say, cannot be removed after it has been heated. The carburetor comes off so an inlet piece can fit between it and the engine, and you may need to source your own bolts. A plasmoid water-vapor mix is then fed into the intake after the carburetor.

To run it: fill the bubbler about two-thirds with water, plug in the ionizer bulb, run the engine for about ten minutes, then open the valve very slowly and adjust the throttle.

One detail differs between the seller’s documents: the instructions say the vapor goes in after the carburetor, while the seller’s test-results page says ahead of it.

Measured

What measurement shows

A 2026 master’s (M.S.) thesis at Embry-Riddle Aeronautical University measured a 9.67% lower fuel-use rate on a small generator under load and about 34% less carbon monoxide (CO) at idle. Carbon dioxide (CO₂) and oxygen showed no significant change.

The thesis says it “did not conclusively validate” the inventor’s fuel and emissions claims and that its results fit “a modest positive effect.”

Seller claim

What the seller says it does

The kit page says the same technology has shown up to 98% CO and hydrocarbon reduction in government-certified UK testing, and a fuel-efficiency improvement in an Embry-Riddle study it dates to 2025. The thesis this site cites is dated 2026.

Our page on the Thunderstorm.tech test results goes through each of the seller’s tests and what is missing from them.

Plain definition

Questions to ask before buying

Is my generator under about 12 kW, and am I willing to lose its warranty and cut into its fuel and exhaust systems?

Can I measure it myself before and after, for example by weighing fuel and reading carbon monoxide (CO) with an exhaust analyzer?

Can I run it safely outdoors, away from people, with a fire extinguisher at hand?

Can the seller share full test reports, including who ran and paid for each test?

Plain definition

Disclosure

This site sells no kits and is not a dealer. Its owner offers install and setup labor by inquiry, with a written estimate, for people who already own a kit or buy one themselves (see Services).