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Transmission dominance with Chinese characteristics

Jordan Schneider cuts through the familiar narrative that America simply moves slower than China by revealing a far more structural truth: our electricity grid isn't just lagging; it was built for a different century, with different rules, and is now trapped in its own institutional DNA. While most observers stop at blaming permitting delays or property rights, Schneider digs into the mechanism design of two systems that evolved from opposite starting points—one a patchwork of local monopolies, the other a centralized blank slate optimized for modern power electronics. This distinction matters because it shifts the solution set from "just build faster" to "rebuild the rules," a nuance essential for anyone trying to understand why AI data centers and renewable energy are hitting a physical wall in the United States.

The Scale of the Disparity

The sheer magnitude of the gap is staggering, and Schneider doesn't mince words when presenting the numbers. He notes that "China has built more high-voltage transmission in the last fifteen years than the United States has in its entire history." This isn't hyperbole; it's a hard metric of industrial capacity. The centerpiece of this effort is the Changji-Guquan link, an ultrahigh-voltage direct current (UHVDC) corridor stretching over 2,000 miles from western Xinjiang to the eastern coast, capable of powering eight million homes. In contrast, the US has added a mere 55 miles of high-voltage lines in 2023 alone.

Transmission dominance with Chinese characteristics

Schneider highlights the irony of this decline: "The country that built the first commercial power plant and started with an almost entirely DC grid at the cost of at least one dead elephant has fallen so far behind in investments in DC lines." This historical nod to the War of Currents—where Thomas Edison's campaign against alternating current famously involved electrocuting an elephant to prove DC safety—adds a layer of tragic circularity. We invented the technology, then abandoned it for decades, while China perfected it.

The consequence is a grid that cannot handle the spatial mismatch of modern renewables. Schneider argues that "batteries solve temporal mismatch... Transmission solves spatial mismatch." This is a critical distinction often lost in policy debates. Batteries shift energy across hours; wires move it across hundreds of miles. Without the latter, we are stranded with cheap wind in Kansas and expensive power in Illinois.

Batteries solve temporal mismatch. They shift energy across hours within a day. Transmission solves spatial mismatch. It moves power across hundreds or thousands of miles. The two are complements, not substitutes.

Mechanism Design: Markets vs. Mandates

The core of Schneider's argument is that the US and China aren't just playing different games; they are using fundamentally different rulebooks. In the US, we rely on Locational Marginal Pricing (LMP) to signal where investment is needed. The theory is elegant: let price signals reveal constraints, and capital will flow there. But Schneider points out the fatal flaw in this logic for the current era. "The price signals that should drive efficient investment do exist... The problem comes from the institutional machinery." The feedback loop between a price spike and a new transmission line is broken because building that line takes ten to fifteen years, while market prices fluctuate every five minutes.

China's approach is radically different. Their system was underdeveloped as recently as the 1990s, allowing for a "centralized buildout using newer technology and learning lessons from nearly a century of grid management." They didn't have to retrofit old rules; they wrote new ones optimized for long-distance power transfer. Schneider writes that while China's state-driven model has its own inefficiencies, it is "rapidly introducing spot markets, capacity pricing, and ancillary services reforms" while simultaneously executing massive infrastructure projects.

Critics might argue that the US decentralized model offers resilience; if one region fails, it doesn't cascade nationally. Schneider acknowledges this, noting that the structure "contains failures regionally rather than propagating them nationally." However, he counters that this same fragmentation prevents the coordinated action needed to integrate a national renewable grid. The US system rewards cost-competitive technologies locally but fails at the scale required for decarbonization.

The AI Bottleneck and Institutional Architecture

Perhaps the most urgent implication of Schneider's analysis is its connection to artificial intelligence. As data centers consume an estimated 12 percent of US electricity by 2028, energy becomes a physical constraint on innovation, not just a cost item. "Energy enters AI's production function primarily as a physical constraint on data center siting," Schneider observes. Training models requires massive, sustained power often far from population centers, while inference workloads need proximity to users. Transmission is the only bridge.

The institutional barriers are human-made, yet they feel insurmountable. FERC (Federal Energy Regulatory Commission) has limited authority, and ERCOT (Electric Reliability Council of Texas) deliberately avoids federal jurisdiction to stay independent. "No single entity can direct interregional buildout," Schneider writes. This is the binding constraint. Even with bipartisan support for legislation like the Big Wires Act or recent FERC Order 1920, the architecture for large-scale construction simply does not exist.

The most likely binding constraint is institutional architecture. Institutional barriers, though human-made and therefore changeable, may prove harder to overcome than technical ones in the current political environment.

Schneider's framing forces us to stop looking at China as a monolithic "fast builder" and start seeing our own grid as a legacy system that requires a complete software update, not just a hardware patch. The solution isn't to copy Beijing's authoritarian efficiency but to redesign American market mechanisms to function in the 21st century.

Bottom Line

Schneider's strongest move is reframing the transmission crisis from a permitting nightmare into a mechanism design failure, proving that our outdated institutional rules are the true bottleneck. The argument's vulnerability lies in the political feasibility of overhauling these rules without triggering a backlash from state regulators and local utilities who fiercely guard their turf. Watch for whether the next wave of legislation can actually pierce this institutional armor or if we remain stuck with wires that are too few, too short, and too slow.

Deep Dives

Explore these related deep dives:

  • Electrocuting an Elephant

    The article cites this 1903 execution as a historical footnote illustrating the early American reliance on DC power, contrasting it with China's modern dominance in HVDC technology.

  • Pacific DC Intertie

    While the article cites this line as America's longest HVDC project, its Wikipedia entry details the complex history of converting a 1960s AC line to DC and the unique engineering challenges of running power across three distinct voltage zones without a synchronous connection.

  • Commerce Clause

    The article highlights the US grid's inability to build interregional lines compared to China; this constitutional provision is the specific legal mechanism often invoked by states to block federal transmission projects, explaining the regulatory fragmentation that stalls lines like the Grain Belt Express.

Sources

Transmission dominance with Chinese characteristics

by Jordan Schneider · ChinaTalk · Read full article

Dana Golden is an economist at Argonne National Labs. All opinions in the article are her own and should not be interpreted as reflecting the views of the Department of Energy or Argonne National Labs.

China has built more high-voltage transmission in the last fifteen years than the United States has in its entire history. This is not hyperbole. China has both the most HVDC lines and the longest HVDC line in the world. The 3,293-kilometer (2,046-mile) Changji-Guquan 1,100 kilovolt (kV) ultrahigh-voltage direct current (UHVDC) link runs all the way from the Xinjiang province in Western China to Anhui province near the East Coast and is capable of transmitting 12,000 megawatts (MW). This is roughly equivalent to transmitting enough energy to power 8 million homes from California to Illinois.

During the 14th Five-Year Plan period alone (2021–2025), China’s ultra-high voltage DC transmission network grew from roughly 28,000 kilometers to more than 40,000 kilometers. As of late 2025, the country has 45 UHV projects in operation. These projects mostly run at 800-1100 kV, almost unheard of in the United States. The extensive project list includes 19 UHV AC lines and at least 23 UHV DC lines. Quite a remarkable buildout considering the grid in China was almost nonexistent at a national level in the early 2000s.

Compare this astonishing buildout to recent development in the grid in the United States, and you immediately see the disparity between investments. The US has built a scant 2370 miles (3810 KM) of HVDC lines. The longest such line is the 846-mile Pacific DC Intertie from Oregon to Los Angeles. It seems almost ironic that the country that built the first commercial power plant and started with an almost entirely DC grid at the cost of at least one dead elephant has fallen so far behind in investments in DC lines. The United States added just 55 miles of high-voltage (345 kV+) transmission lines in 2023, down from an annual average of about 1,700 miles in the early 2010s.

Notably, several new HVDC projects are in the works, including the Grain Belt Express, an 800-mile 600 kV line designed to transfer 5,000 MW from wind-rich Kansas to the Midcontinent Independent System Operator in Illinois and onto the PJM interconnection and a 765 kV regional backbone expansion in the Southwestern Power Pool. Despite recent funding cuts to support for the Grain Belt Express and similar transmission ...