One company. Your power. No alternatives.
In the early decades of the twentieth century, electricity was a marvel and a mystery. Wires were dangerous, technology was temperamental, and the capital required to build generation plants, transmission lines, and local distribution networks was staggering. Into this chaos stepped the vertically integrated electric utility — a single corporation that owned every step of the supply chain from the coal pile to your kitchen outlet.
The logic seemed unassailable. A utility needed a power plant to generate electricity, high-voltage lines to move it hundreds of miles, substations to step the voltage down, and neighborhood wires to deliver it to homes and businesses. Who would build the wires if a rival could just string their own? The answer, regulators decided, was nobody — and so the natural monopoly doctrine was born.
State legislatures and public utility commissions struck a deal with these new corporations: you get an exclusive franchise to serve customers in your territory, and in exchange, you must serve everyone at regulated rates. No cherry-picking profitable suburbs. No refusing to wire rural farms. Every customer, everywhere, at a price the commission approves.
This was the golden age of "cost-plus" or "rate-of-return" regulation. The utility tallied up all its costs — fuel, labor, depreciation, debt payments — added a permitted profit margin (typically 6–10% on invested capital), and submitted a rate case to regulators. The commission reviewed the math and, if it agreed, allowed the utility to charge those rates. Customers had no choice. The utility had no competitors.
By the 1950s, the vertically integrated utility was one of the most powerful institutions in American economic life. Utilities like Pacific Gas & Electric in California, Consolidated Edison in New York, and Commonwealth Edison in Illinois served millions of customers and employed tens of thousands. They built the dams, ran the coal trains, maintained the substations, and mailed the monthly bills.
The system delivered real benefits. Massive investments in central generating stations drove down the cost of electricity every decade. Interconnections between utilities reduced the need for redundant "spinning reserves." Engineers celebrated the efficiency of a perfectly planned, vertically integrated grid. And for a time, they were right.
But the natural monopoly bargain contained a subtle poison. A utility's profits were a percentage of its investment — so the rational strategy was to invest as much as possible, whether or not the investment was efficient. Regulators called this "gold plating." Utilities built the biggest boilers, the grandest headquarters, the most over-engineered transmission systems money could buy. Customers paid for all of it.
Meanwhile, the competitive pressure to innovate was zero. Why develop cheaper technologies when your regulator lets you pass costs through to ratepayers anyway? The vertically integrated model had made electricity universal and affordable — but it had also guaranteed that the industry would sleepwalk into the energy crises of the 1970s completely unprepared.
Chicago, June 1932. Samuel Insull had spent five decades building what was arguably the most sophisticated business empire in American history — 85 interconnected holding companies stretching across 22 states, supplying electricity to one in eight Americans. His pyramided structure amplified returns in good times and amplified losses in bad. When credit markets froze and Depression-era investors demanded liquidation, the entire structure collapsed within weeks. Insull fled to Greece to avoid arrest. Congress, confronting the wreckage of nearly $700 million in investor losses, passed the Public Utility Holding Company Act of 1935 — a law that would enforce the vertically integrated, geographically isolated utility structure for the next six decades.
EBSCO Research Starters — Insull Utilities Trusts Collapse NYT Archive — "The Insull Utility Empire: Its Amazing Rise and Fall," October 9, 1932