M Nelson @nelsman11 - Twitter Profile

3 days ago

The world consumes roughly 28 million tonnes of copper every year—a mass equivalent to five Great Pyramids of Giza. Yet that refined metal is just the tip of the iceberg of a far more monstrous physical reality. Beneath those 28 million tonnes of copper sits a massive geological footprint: billions of tonnes of blasted rock, colossal volumes of chemical tailings, vast energy expenditures and trillions of litres of water. This is all fresh, relentless demand. Crucially, up to 75% of that copper never enters individual turbines, solar panels or electric vehicles. It goes into the invisible grid infrastructure required to link everything together and make it function. When you trace 28 million tonnes of copper backward into the Earth, the true scale and cost is staggering. The drive to overhaul the global energy structure rests on a profound misunderstanding of physics: it treats energy supply as a 'software' problem while ignoring the devastating raw material gridlock caused by manufacturing billions of solar panels and over a million wind turbines, with hundreds of thousands more in the pipeline. When an energy system shifts from reliable, high-density fuels—hydrocarbons and uranium—to low-density, intermittent sources like wind and solar, the physical apparatus needed to capture, convert, stabilise and transmit that diffuse flux just explodes. It becomes an absurd trade-off: expending colossal amounts of finite, high-grade fossil fuels upfront simply to dig up materials for low-density generators—generators that can never run a steel mill, power an ocean cargo vessel or sustain international air travel. Mining is already a vast consumer of continuous energy. As global copper ore grades decline—frequently dropping to 0.5% or lower—the mass of rock that must be dug, hauled, and crushed grows exponentially per unit of recovered metal. Crushing rock alone accounts for roughly 3% to 4% of total global electricity consumption. Demanding billions of additional tonnes of processed metal creates a self-defeating loop: huge volumes of reliable, baseline power are consumed just to extract the raw materials needed to construct weather-dependent hardware. Yet the primary metals drain does not come from the turbines or arrays themselves. It stems from the enormous physical web needed to transport that energy across vast distances. Diffuse generators located hundreds of kilometres from cities require unprecedented volumes of step-up transformers, substations, high-voltage transmission lines and regional grid overhauls. The heavy overhead wiring looping across the landscape regularly dwarfs the metal required to build the turbine in the first place. Because two centuries of industrial civilisation have already extracted the highest-grade deposits, meeting future demand forces miners to dig deeper, crush harder and manage billions of tonnes of toxic slurry. This is a twin crisis: the escalating physical cost of ore recovery on the front end, and an unprecedented tsunami of industrial e-waste bound for landfills on the back end. The physical limits of this model are not dictated by how much metal remains in the crust, but by the soaring energy penalty required to dig them up and refine them. Heavy industrial processes—blast furnaces, chemical synthesis, cement production and deep-shaft mining—all need continuous, high-temperature thermal energy and uninterrupted high-voltage power. Intermittent turbines and panels cannot reliably deliver that dense power to sustain heavy industry, let alone an entire national economy. The ultimate irony is that the staggering industrial muscle needed to build, maintain, and periodically replace these diffuse energy systems relies entirely on the coal, oil and gas they were meant to replace. The dream of a fully weather-dependent industrial grid ignores physical reality. It overlooks a looming nightmare of endless ore extraction, refining bottlenecks, and perpetual grid expansion.

PeterDClack's tweet photo. The world consumes roughly 28 million tonnes of copper every year—a mass equivalent to five Great Pyramids of Giza.

Yet that refined metal is just the tip of the iceberg of a far more monstrous physical reality. Beneath those 28 million tonnes of copper sits a massive geological footprint: billions of tonnes of blasted rock, colossal volumes of chemical tailings, vast energy expenditures and trillions of litres of water. This is all fresh, relentless demand.

Crucially, up to 75% of that copper never enters individual turbines, solar panels or electric vehicles. It goes into the invisible grid infrastructure required to link everything together and make it function. When you trace 28 million tonnes of copper backward into the Earth, the true scale and cost is staggering.

The drive to overhaul the global energy structure rests on a profound misunderstanding of physics: it treats energy supply as a 'software' problem while ignoring the devastating raw material gridlock caused by manufacturing billions of solar panels and over a million wind turbines, with hundreds of thousands more in the pipeline.

When an energy system shifts from reliable, high-density fuels—hydrocarbons and uranium—to low-density, intermittent sources like wind and solar, the physical apparatus needed to capture, convert, stabilise and transmit that diffuse flux just explodes.

It becomes an absurd trade-off: expending colossal amounts of finite, high-grade fossil fuels upfront simply to dig up materials for low-density generators—generators that can never run a steel mill, power an ocean cargo vessel or sustain international air travel.

Mining is already a vast consumer of continuous energy. As global copper ore grades decline—frequently dropping to 0.5% or lower—the mass of rock that must be dug, hauled, and crushed grows exponentially per unit of recovered metal.

Crushing rock alone accounts for roughly 3% to 4% of total global electricity consumption. Demanding billions of additional tonnes of processed metal creates a self-defeating loop: huge volumes of reliable, baseline power are consumed just to extract the raw materials needed to construct weather-dependent hardware.

Yet the primary metals drain does not come from the turbines or arrays themselves. It stems from the enormous physical web needed to transport that energy across vast distances. Diffuse generators located hundreds of kilometres from cities require unprecedented volumes of step-up transformers, substations, high-voltage transmission lines and regional grid overhauls.

The heavy overhead wiring looping across the landscape regularly dwarfs the metal required to build the turbine in the first place. Because two centuries of industrial civilisation have already extracted the highest-grade deposits, meeting future demand forces miners to dig deeper, crush harder and manage billions of tonnes of toxic slurry.

This is a twin crisis: the escalating physical cost of ore recovery on the front end, and an unprecedented tsunami of industrial e-waste bound for landfills on the back end. The physical limits of this model are not dictated by how much metal remains in the crust, but by the soaring energy penalty required to dig them up and refine them.

Heavy industrial processes—blast furnaces, chemical synthesis, cement production and deep-shaft mining—all need continuous, high-temperature thermal energy and uninterrupted high-voltage power. Intermittent turbines and panels cannot reliably deliver that dense power to sustain heavy industry, let alone an entire national economy.

The ultimate irony is that the staggering industrial muscle needed to build, maintain, and periodically replace these diffuse energy systems relies entirely on the coal, oil and gas they were meant to replace.

The dream of a fully weather-dependent industrial grid ignores physical reality. It overlooks a looming nightmare of endless ore extraction, refining bottlenecks, and perpetual grid expansion.

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