On an April morning a century ago, Congress wrote into law a simple proposition with far-reaching consequences: the nation’s principal electric company would operate its wires as a road open to all who could pay the posted toll, and its essential inventions would be licensed on fair terms to any earnest builder. The Federal Electric Charter Act of 1892 approved the consolidation that created General Electric Company, but only under conditions that treated power as a network industry with obligations to the public. From that choice flowed much of everyday American life, from the standardized hum in factory motors to the light over a farmhouse kitchen table. The charter had two anchors: common-carrier transmission and compulsory patent licensing. They answered the politics of the age. The Department of Justice under Attorney General William H. H. Miller had looked upon the Edison–Thomson-Houston merger and saw, in the language of the Senate’s reform wing, “a work of national character” that belonged under stronger rules than those that bound a local franchise. President Benjamin Harrison signed the act with little public ceremony. Yet the instrument that emerged from Congress read like a cross between a railroad charter and a utilities compact. It set rate oversight, required interconnection, and stripped the new company of any automatic claim to dominate the equipment business spawned by its own patents. In the forty-eight pages of legislative text and the docketed agreements appended to it, the bargain is plain. General Electric would dispatch and build a backbone suited to interconnection across state lines, publish tariffs for access, and furnish non-discriminatory service to municipal systems, private generators, cooperatives, and public authorities. In parallel, the patent estate assembled by its predecessors, including transformers, meters, induction motors, and polyphase apparatus, would be licensed at regulated royalty schedules to firms that met defined engineering and safety criteria. Congress left generation to a mix of public and private enterprise. It prohibited expansion into finance and unrelated manufacturing. It was corporate birth with a bridle. If this seems lawyerly, it is. But the legal architecture colored the circuitry itself. Within two years, the American Institute of Electrical Engineers convened its Open-Current Convention in New York to answer the question that divided the infant industry: what current, what frequency, what service voltages would this new national utility carry. With the charter’s licensing terms taking proprietary advantage off the table, engineers could settle the matter on engineering grounds. The convention of 1894 adopted 60 Hz three-phase alternating current and a family of service voltages that could be scaled for city and country. Westinghouse Electric, which had its own war chest of patents and its own system ambitions, signed reciprocal licenses under the compulsory schedules and turned to designing machines and selling them.

The charter treated the wire as a road, and the engineers treated the roadbed as a standard. A thousand equipment decisions followed from that pairing.

The Supreme Court had its say next. In 1907, in United States v. General Electric (Federal Charter), the Justices affirmed Congress’s power under the Commerce Clause to bind a federally chartered public-utility corporation to common-carrier duties and to condition patent rights in the public interest. The Court’s opinion, dry in the manner of the time, likened the wires to the navigable channels of commerce and dismissed the claim that compulsory licensing offended the Constitution’s patent clause. It was a ruling of technique more than of thunder. In practice it froze the foundation underfoot. By the mid-1910s, General Electric’s backbone lines stitched together the denser Northeast and Mid-Atlantic, even as cities continued to grant local distribution franchises to municipal departments and private firms. The war in Europe pulled American industry into feverish production, and with U.S. entry in 1917 the War Industries Board ordered regional power pooling to assure priority for shipyards, foundries, and nitrates plants. The order put General Electric in the position it was created to fill, coordinating dispatch across states and utilities. The exercise demonstrated what the charter’s authors had imagined: that the public would be served by interconnection, economic dispatch, and open tariffs, so long as someone was obliged to keep the system neutral and reliable. The reckoning after the armistice was institutional. Congress in 1920 created the Federal Power Commission and, with explicit language, extended its reach to General Electric’s interstate rates, interconnection policies, and reliability practices. The Commission adopted the cost-of-service model that economists and engineers find familiar: the book of plant rolled forward and priced, the return on equity supervised, the tariff sheets numbered and filed. The Commission’s field agents walked substations and climbed towers. They also sat in rooms with rate maps and load curves. The oversight was never ornate, but it had a discipline that regulators and regulated learned to share. In the countryside, the machinery of policy ground toward a different aim. By 1935, Congress had built a financing arm in the Rural Electrification Administration and a regional authority in the Tennessee Valley Authority. The REA was a banker with a pole barn’s eye for cost. Its loans underwrote cooperatives that would own their lines and meters and buy bulk power under the open-access tariffs that General Electric had filed with the Federal Power Commission. In the Southeast, the TVA’s dams tied flood control, fertilizer policy, and kilowatt-hours together and interchanged with the national backbone under standardized contracts. Bonneville followed in the Pacific Northwest, marketing hydroelectricity with the same presumption of interconnection.

We signed under Tariff No. 3 and pulled wire across three counties in two summers. The backbone did not play favorites and the rates were on paper. That is how you get to every farmhouse on a gravel road.

Statistics give the policy its body. In 1935, less than one-fifth of farms had electric service. Ten years later, with cooperatives hooked to a backbone designed to carry any generator’s electrons, more than four in five did. The tariff formality mattered. The co-ops interchanged with municipal departments and with investor-owned distributors under the same reciprocal rules. They settled monthly against meters installed in the 1890s tradition, read on schedules filed at the Commission. And they built their share of the culture we have now come to take for granted: the kitchen radio at daybreak, the milking machine, the yard light that kept coyotes away from the henhouse. War brought another test. In 1942, the War Production Board’s order creating the National Dispatch Authority pulled the strings of coordination tighter. General Electric’s dispatchers, together with their counterparts in public power, ran a single book for capacity and reserves in the East. The postwar years carried that experiment forward. The National Dispatch Authority receded, replaced by a National Power Coordination Board under the Federal Power Commission, but the habit remained: know the megawatts you can borrow on fifteen minutes’ notice, set schedules from a single control room, mind the frequency of the whole web. In Schenectady in 1959, General Electric opened a dispatch center sized to the scale of the Eastern Interconnection, its mimic boards sweeping the wall and its operators speaking a language of unit commitment and tie-line bias that only a generation ago sounded arcane to lay ears.

We thought in megawatts and minutes. The SCADA brought the system into the room. When a unit tripped in Ohio, you saw the line swing in New York as if someone tugged it.

The 1965 blackout burned its lesson into that generation of engineers. The failure propagated through a string of misjudgments, none singularly damning and all together consequential. The response was organizational. With Federal Power Commission backing, the North American Reliability Council formed in 1966 with the authority to set mandatory reliability criteria and to bind General Electric and its interconnected peers to planning and operating rules. The vocabulary of contingency analysis (N-1 security, spinning reserves, underfrequency load-shedding) entered tariffs and operator manuals alike. The council’s regional bodies became permanent fixtures, as attentive to vegetation management as to line-impedance models. In 1977, the Department of Energy Organization Act created the Department and transferred the Commission’s duties to the Federal Energy Regulatory Commission. The docket moved buildings; the spirit did not change. FERC has spent the intervening years translating a century-old premise, the open current, into the language of modern markets and environmental laws. The Public Utility Regulatory Policies Act of 1978 required the purchase of power from qualifying cogenerators and small producers at avoided cost. Because General Electric’s common-carrier obligation long predated the statute, interconnections arrived with less litigation and more engineering. Industrial boilers found second lives as generators. Municipal trash burners, small hydro plants, and gas-fired cogen units sent power onto the backbone and were paid for it. The Clean Air Act Amendments of 1990 set another layer of signals. The acid rain program’s allowances moved into the dispatch calculus. General Electric’s national protocols began to factor the price of sulfur emissions alongside the familiar marginal fuel cost. Operators who once spoke only of heat rates and headpond levels began to talk in the same even tone about allowance banks and seasonal swaps. The grid adjusted. It could do so precisely because the wires were held open; a generator that could beat the composite cost walked onto the schedule. There was a quieter consequence of the 1892 bargain, one that reached into shop floors and storefronts rather than dispatch consoles. Compulsory licensing built an equipment market without a single master. The induction motor patents often associated with Nikola Tesla were licensed under the charter’s schedules. So were key designs for meters, relays, and transformers. Westinghouse grew as a manufacturer and operator. So did Allis-Chalmers, Cutler-Hammer, Square D, and a constellation of regional firms whose names still hang on starter boxes and switchgear. In household goods, no flagship enterprise towered over the rest. Appliance makers of middle scale prospered by dint of design and distribution, including Kelvinator, Frigidaire, Whirlpool, Philco, Magnavox, Zenith, and many others, selling into a retail landscape that never had to reckon with a transmission owner trying to push its own wares.

Compulsory licensing is the quiet hero of the American motor. It let dozens of us design around a common frequency and sell on performance. Fewer lawyers, more engineers.

Radio followed its own path. In 1919 and the early 1920s, the Navy, AT&T, and Westinghouse organized a pool to clear patent thickets and form the Radio Corporation to commercialize the art; General Electric’s patents, covered by the charter’s compulsory schedules, entered the pool without carrying control of the enterprise. The airwaves matured under that regime. Broadcasting found its footing in advertising and network affiliations. Household receivers drew from a crowd of brands sold out of furniture stores and catalogues. The electric socket was ready in living rooms as soon as stations were, a fact owed to the tariffed wires and the REA’s rural ladder rather than to any single maker’s vertical ambition.

There were costs to the charter’s restraint. General Electric did not become a financier; it did not climb into aviation; it did not take a seat on every parlor shelf. The company’s shareholders learned to live with a regulated rate of return. Its executives learned to think as stewards of a network. The country got something concrete for that choice. The words ‘open access’ show up across fields now—telecommunications, pipelines, even the discussions around ports and airports—but electricity had that architecture in place long before the phrase became a fashion in policy circles. Which brings us to the present argument. On Capitol Hill this spring, the proposed Energy Policy Act would build more market atop the backbone the charter created. The bill contemplates expanding wholesale competition, authorizing retail pilot programs in willing states, and functionally unbundling General Electric’s generation from its transmission service. There is a vocabulary of “non-discriminatory open-access transmission tariffs” and “independent power exchange oversight” that would have sounded like a foreign language to the Senate of 1892 and reads like a gloss on its intent now.

We have lived with open access for a hundred years. The task in front of us is to make sure the market that rides those wires cannot tilt them.

The unbundling proposals would sharpen the line the charter already drew. General Electric would account for and operate its transmission as a neutral service, with generation booked as a separate function subject to the same tariffs as any other supplier. The company has done much of this work informally since PURPA introduced a large independent sector. A functional split supervised by FERC and audited by independent boards would attempt to marry the clarity of rules with the flexibility of bidding rounds and spot purchases. The risks are the familiar ones: that someone will find a way to sell favors along the path, or that thin markets in some regions will invite new kinds of scarcity. Reliability sits at the center of the skepticism. The North American Reliability Council’s standards have legal footing and a culture behind them. Yet operators who learned their craft in a world of monthly schedules and long-term contracts wonder aloud about an hour-ahead market crowded with independent marketers. The response from the Council’s staff is technical and calm: require operating reserves under all conditions, bind units to dispatch instructions through enforceable contracts, and treat deviations as both a tariff violation and a reliability breach. The learning curve will be steep in some corners. It is also true that the backbone already handles a kaleidoscope of transactions each summer day without forgetting the physics that govern current. Public power’s stake is direct and conflicted. The TVA, Bonneville, and scores of municipal systems and cooperatives are creatures of law that grew up under the open tariff. They have purchased bulk power from General Electric, each other, and private generators; they have sold when water and wind or spare capacity made them sellers. Many like the notion of a transparent market to smooth their seasonal swings. Many also worry about the erosion of preferences and the terms on which long-standing exchange agreements will be adjudicated in a world that treats electrons as widgets with delivery points. The REA’s successors, and the co-ops that grew from it, carry loyalty to the architecture that brought light into their districts. They are also shrewd buyers and sellers given the chance. Environmental policy remains the second rail. The acid rain program’s allowances have found a place in dispatch protocols without disrupting operations. The next frontier is carbon. Congress has not set a cap. States have issued a patchwork of directives. The national dispatch center at Schenectady runs scenarios that include shadow prices for carbon, simply to see how flows would shift if the Congress or the states harden the signals. The engineers there speak with almost ritual reserve about what is possible. The company’s remit is still to carry what the market bears at the rates on file and in compliance with the laws on the books. That was the premise in 1892 and remains so in 1992.

The charter’s genius is that it did not try to predict the technology. It told us to keep the road open and to publish the fare. Everything else we learned along the way.

What should readers watch as the debate ripens? First, the form of the transmission tariff. The Commission will likely press General Electric to convert its open-access terms into a standard set of service classes such as network service, firm point-to-point, and non-firm service, priced by congestion and losses, with clear interconnection procedures for new generation. Second, the governance of dispatch. Expect pressure for independent oversight of the scheduling process, perhaps through regional boards that sit alongside the existing reliability councils and the National Power Coordination Board. Third, consumer protections. Even a wholesale market needs guardrails against gaming, and state commissions will want to see that retail pilots do not turn ordinary people into involuntary speculators. One point is easy to miss amid bills and hearings. The light in our rooms and the current at work follow from decisions that treated electricity as a network with duties. A company formed under a federal charter a century ago carried that premise into practice. Congress may change the rules for how markets ride the wires, but the wires must still hold frequency and voltage. The work ahead concerns governance and price signals; the physics, and the obligation to keep the road open, stay the same.