Mid-Century Power Transformations

The period from 1942 to 1960 spanning the first controlled nuclear chain reaction, the Bell Labs silicon solar cell, the first nuclear power delivered to a grid, the opening of Calder Hall as the first commercial-scale nuclear power station, and the founding of OPEC in Baghdad. Belongs here: a milestone from this atlas dated 1942 through 1960, when nuclear power and practical solar cells first entered the energy landscape alongside the beginning of producer-country coordination over oil. Does not belong here: an earlier or later milestone, grouped under its own period.