A technology that claims to turn air and electricity into nitrogen fertilizer is real, but the promise around it is not. CleanTechnica’s review of Green Lightning says the company does make fertilizer—yet the amount it can produce is tiny next to what its marketing implies.
The central issue, according to the review, is how nitrogen is understood. Nitrogen is not merely something that encourages a plant to grow; it becomes part of the plant itself. That means any fertilizer substitute has to supply a large quantity of nitrogen, not just a small additive.
The article does not dispute the underlying chemistry, but it argues that the scale being advertised does not add up. For readers evaluating green fertilizer claims, the lesson is to measure promises against actual output and the demand that nitrogen replacement requires.