This paper assesses a major transition in energy usage and distribution in the United Kingdom (UK) between 1953–73 as domestic coal gave way to electricity, and a centralized electricity generation and distribution system reached every home in the country. Our analysis significantly extends and reinterprets the business history of the National Grid by exploring the consequences of its completion. We argue that the National Grid facilitated the removal of the railways as an energy distribution network and enabled prototype “Net Zero” policies in the context of atmospheric pollution. We tie these themes together to conclude that the construction of the national grid was a major environmental success but removed an essential rationale for much of the rail network.