Green Lightning, a company producing nitrogen fertilizer through electrical plasma chemistry, has generated scrutiny over the gap between its actual output and claimed fertilizer replacement capacity. The technology uses electricity to oxidize nitrogen from the air and create nitrate in water, a process with roots in century-old nitrogen-fixation chemistry. However, analysis reveals significant discrepancies in the company’s marketing claims.
Testing by Washington State University Extension found that a Green Lightning machine producing 100 gallons daily would fix approximately 161 pounds of actual nitrogen annually. The company simultaneously claims the product equals about three pounds of conventional nitrogen per gallon, which would translate to roughly 109,500 pounds of claimed conventional-nitrogen replacement yearly at the same production rate. This represents approximately a 680-fold difference between the nitrogen physically created and the nitrogen purportedly replaced.
A direct field trial conducted by Precision Planting in 2024 tested complete replacement of conventional nitrogen fertilizer with Green Lightning. The test applied 120 gallons per acre across six applications, yielding 235.9 bushels of corn per acre, compared to 280.7 bushels from the conventional urea-ammonium nitrate program. While Precision Planting noted operating issues with the Green Lightning equipment, the trial demonstrated the replacement proposition did not match the conventional nitrogen program’s performance.
Company officials have reported more favorable results from other trials and stated that newer equipment can produce higher nitrate concentrations. These claims require proper controlled testing to determine where crop nitrogen originated, distinguishing the machine’s contribution from nitrogen already present in soil. The distinction becomes critical as the technology moves toward commercial adoption, since farmers purchase equipment based on its ability to displace existing inputs without reducing yields.
The evidence currently available does not establish that Green Lightning can reliably substitute for the fertilizer quantities its marketing suggests. While the technology produces measurable nitrogen, demonstrated quantities remain small relative to claimed replacements, and independent field trials have not shown equivalent performance to conventional nitrogen programs. Crops require nitrogen atoms from various sources, and if Green Lightning supplies only a fraction, the remainder must derive from existing soil resources, fertilizer residues, manure, or biological fixation.
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