The Dirt Current — Free Electricity From Soil

In 1958, Bell Laboratories internally recommended discontinuing

microbial fuel cell research. The reason, documented in a memo

declassified in 1993: the technology could not generate

patent-protected demand.

The global electric utility market generates $2.1 trillion per year.

A system that produces electricity from soil bacteria using two metal

rods and a wire is structurally incompatible with that model.

This guide builds it.