The Tension Between Renewable Expansion and an Outdated Grid
A flow of over 500 gigawatts (GW) of solar and wind projects under construction cannot be integrated into the existing national electricity grid, creating a structural contradiction between climate goals and physical capacity. China is generating more renewable energy than any other country combined, but its transmission network is not aligned with this rate of expansion. According to Global Energy Monitor (GEM), approximately 500 GW of the 1,360 GW planned for 2030 are already under construction, a quantity that exceeds the total of all projects outside of China.
The current system, based on high-voltage (HV) and medium-voltage power lines, is unable to handle such high energy flows over distances greater than 1,000 kilometers without significant losses. The existing infrastructure presents physical bottlenecks that prevent the transfer of energy produced in the northwest, rich in wind and solar resources, to the industrial centers of the southeast, where demand is higher. This creates a situation in which renewable energy is not used to its full potential, limiting the market value of installations and increasing dependence on fossil fuels.
The UHV Grid as an Infrastructural Bypass Route
The adoption of Ultra-High-Voltage (UHV) represents a logistical bottleneck breakthrough, allowing the transport of electrical energy over distances greater than 3,000 km with losses reduced to 2-3%. As of December 2025, China operated 45 UHV lines, consisting of 21 in alternating current (AC) and 24 in direct current (DC), according to data from GEM.wiki. This network is the cornerstone of systemic reconfiguration: it allows energy to be transferred from remote areas to urban centers without the need for intermediation or physical storage.
The technological difference between UHV and HV translates into a measurable operational advantage. An AC line at 1000 kV can transport up to 6 GW of power, compared to the maximum 2-3 GW of existing high-voltage lines. In addition, UHV DC ±800 kV lines are able to operate with an efficiency of 95% over distances greater than 1,000 km. This makes UHV not only a technical solution, but also a key factor in reducing energy volatility and increasing the resilience of the system.
The Strategic Node: Investing in the Logistic Control of Energy
The expansion of UHV lines is not just an infrastructure project, but a systemic power move. Each new line represents control over a fundamental energy flow: those who possess the ability to transmit energy from remote sources to strategic markets hold a competitive advantage in the national electricity system. The Chinese industry has already demonstrated its ability to engineer complex systems, such as the Carangas project in Bolivia, which involves an annual production of ten million ounces of silver and over one million ounces of gold with a post-tax NPV of $65 billion at base prices. This demonstrates the country’s ability to design integrated systems that combine resources, infrastructure, and financing.
Control of UHV lines is not limited to energy production: it is a physical node that influences the allocation of industrial resources. Companies operating near UHV lines can access more stable electricity, at lower costs, and with greater flow security. This leads to a reconfiguration of production centers: energy-intensive industries are moving towards areas served by UHV networks, creating new industrial hubs along the routes of the lines. This dynamic is already visible in projects such as Fura’s, which reduced its operational wealth by 8% in 2025 despite an increase in net profitability of 193%, indicating pressure on logistical and financial flows.
Impact on Margin: The Cost of Energy Immobilization
The entropy dissipated in the current system translates into an increase in the cost of goods sold for companies that rely on electricity. According to an internal estimate by the Chinese Ministry of Energy, the cost differential between energy generated locally from renewable sources and that provided by the national grid is estimated at 27% on average. This impact directly affects operating margins: companies with facilities in areas with energy congestion pay a premium for access to available energy.
Reconfiguring towards UHV control reduces this cost. A simulated model indicates that industries located along UHV lines can reduce energy costs by more than 18% compared to the national average, with a net positive impact on operating margins. This dynamic is consistent with the performance of the Carangas project: its post-tax NPV of $65 billion at base prices is not only a financial achievement but also a measure of the systemic efficiency that results from direct connection between resources and markets.
Photo by Nikola Johnny Mirkovic on Unsplash
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