How CTMP is designed to power its own buildout, give every output a next use, and put a number on every residual, without publishing the parts that need protecting.
Status: this describes the CTMP design. Nothing has been built. Every figure carries a label saying what kind of number it is, and each is cited. The last sections set out what the design cannot do, what the 50 megawatt proof of concept will measure, and what will and will not be published.
Walk around the back of almost any industrial plant and you will find the part of the design nobody photographs. The spoil heap. The plume. The warm water at the outfall. The brine line running out to the seabed.
That is where a linear plant keeps its costs. Material comes in one end, product leaves the other, and everything that is not product becomes somebody else's problem. The neighbor's air. The fisherman's water. The next generation's landfill. The balance sheet never sees any of it, because the balance sheet ends at the fence.
CTMP is designed as a set of loops, and the loops run on one rule.
Every output needs a next use before it is allowed to become a waste.
Rock, water, brine, heat, gas and steel are routed back into the platform as feedstock at cost wherever the chemistry and the economics allow. What genuinely has no use is minimized, measured and logged, and the totals are reported. Nothing is dumped quietly.
We don't externalize problems. We metabolize them. Where we can't, we count them, and the count is public.
I will hold this article to the same rule. Every stream it names gets a next use or a number, and at the end there is a stream table to check it against.
Energy is the input that drives every other loop.
Tunnel boring machines cut the tunnels and penstocks. Turbines turn the water's fall into electricity. That electricity moves between the platform's own verticals at a modeled internal transfer price of US$0.0008 per kilowatt-hour, eight hundredths of one cent,Modeled12 and powers hydrogen, steel, concrete, additive manufacturing, desalination, refining and bagging, and data.
Those verticals then manufacture the tunnel boring machines, turbines, port structures, rail and housing that extend the system.
Energy becomes material. Material becomes infrastructure. Infrastructure delivers more energy.
Schematic, not to scale. One outside input drives the loop. Heat and residuals leave it, measured.
Each turn of the loop adds capacity. What it does not do is create energy from nothing. Every new module still needs its own water, its own conduits and its own turbines. The loop compounds capacity, not physics.
The 50 megawatt proof of concept is not a demonstration that sits beside the project. It is the power station that starts the buildout. Its electricity runs the first fabrication shops, the first tunnel boring machines, the first desalination train and the first electrolyzer and steel pilot lines. Those lines then produce the plate, rings and concrete for the next stage.
The arithmetic sets the pace. Assume, for illustration only, a 90 percent capacity factor. Fifty megawatts then delivers about 394 gigawatt-hours a year.Calculated Hydrogen-route steel needs about 3.48 megawatt-hours of electricity per tonne of liquid steel.External7 If every one of those 394 gigawatt-hours went to steel, the result would be about 113,000 tonnes a year, under 3 percent of the platform's 4 million tonne steel design.Target
Upper bound: all output to steel at 3.48 MWh per tonne and an illustrative 90 percent capacity factor. In practice the first block is shared across construction equipment and several pilot lines.
So the proof of concept supplies staged construction and pilot loads within its available capacity. It does not run full-scale industry, and it is not meant to. Its measured results carry the program to 250 megawatts, and from there module by proven module.
There is one number the whole design rests on: net electrical output at the meter, after every energy requirement of the system's own operation has been met. That is what the proof of concept exists to validate, in front of independent engineers, with the result reported in public.
How the hydraulic system achieves it is proprietary, and this article does not describe it. Whether it achieves it is not proprietary.
That is what the meter is for.
The rock removed to build tunnels and ports is treated as a raw material, not as spoil to be trucked away.
A project that moves this much rock has a choice. It can buy aggregate from quarries while paying to dispose of its own excavated rock, or it can use what it digs. CTMP is designed to use what it digs wherever the rock qualifies.
A note on slag. Ground granulated blast furnace slag is a by-product of blast furnaces. A hydrogen and arc furnace route does not make it. Arc furnace slag has different chemistry and is mainly suitable as aggregate, not as a cement replacement. So the platform's own low-clinker binders come from calcined clay, limestone and other qualified supplementary materials.1 Where blast furnace slag is used, it is bought in and recorded as an import.
Net effectThe ground we cut becomes the ground we build on. Far fewer quarry imports, far fewer truck movements, and a reported tally of excavated tonnes by destination: product, engineered fill or residual.
Water inside the plant is used many times before it leaves, and every stream is treated to a defined standard before any release.
A litre can cool a coil in a closed loop, carry that heat to an exchanger, rinse a pickled tube, then be treated back to specification and sent round again. The first litre is the expensive one. Each reuse costs only the treatment energy and consumables.
There is one exception, and it matters. An electrolyzer does not use water and hand it back. It splits it. By the chemistry alone, each kilogram of hydrogen takes about 9 kilograms of water,Calculated and real electrolyzers draw more once purification losses are counted. That water leaves the circuit as hydrogen and oxygen, so it is counted as consumption, not reuse, and made up from the desalination train.
Schematic, not to scale. Reuse duties are examples. Electrolysis is shown apart because it consumes the water it takes.
Order of magnitude. Steel plants built to good practice already recirculate well over 90 percent of their water.External2 CTMP targets higher.Target Desalination and polishing are sized so the plant can run through maintenance without drawing on rivers or aquifers.
What people will see on site: color-coded pipes and tanks, inline sensors for turbidity, pH, conductivity, temperature and oil in water, and sampling points where authorized inspectors take certified samples under the site's security procedures.
Net effectThe plant carries its own water burden instead of competing with farms and cities for freshwater, and what it releases is measured, logged and reported.
Heat is used in steps, from the hottest duty to the coolest, and rejected only after the last useful one.
It comes from electric arc furnace off-gas, ladle and casting heat, electrolyzer cooling, compressors and data halls. It goes down the cascade in order.
Order of use, hottest first. Temperatures are indicative ranges, not to scale. Scrap preheating result from reference 3.3
Standard single-effect absorption chillers need hotter water than most of the campus loop provides, so chilling is fed from the hotter streams or lifted by heat pumps. Absorption chilling still draws some electricity for pumps and heat rejection, but far less than electric chillers doing the same work.
Controls put metallurgy and deionized water stability first. Building comfort and non-critical loads adjust automatically. Winter favors heating. Summer shifts heat toward chilling.
What people will see on site: hood and duct exchangers with access doors, scrap preheaters, insulated mains with marked branches, and operator screens showing heat recovered, heat used and electricity saved.
Net effectLower electricity demand, a flatter load curve, and a reported figure for how much heat did useful work before it left.
Hydrogen, oxygen, nitrogen and carbon dioxide are metered, specified and routed like any other product.
Hydrogen. Made by electrolysis. Its first use is reducing iron ore to direct reduced iron. The stoichiometric minimum is about 54 kilograms of hydrogen per tonne of iron;Calculated4 real shaft furnaces run with excess hydrogen that is recycled.
Oxygen. Electrolysis releases about 8 kilograms of oxygen for every kilogram of hydrogen, fixed by the chemistry of water. At design scale, that arithmetic matters.Calculated
Calculated from the design basis above: 165,000 t of hydrogen at 7.94 kg of oxygen per kg, and 4 Mt of steel at 45 Nm³ per tonne (1.43 kg per Nm³).
So steelmaking absorbs only about a fifth of the oxygen. The rest needs other buyers: water treatment, industrial users and, where certified, medical supply. What cannot be sold is vented. Venting oxygen is not pollution, but it is value not captured, and the design records it as such.
Nitrogen. From pressure swing adsorption or air separation, for inerting, blanketing and purges.
Carbon dioxide. An electric plant is not carbon-free by default. Cement and lime production release CO2 from the limestone itself when it is heated, whatever the fuel. Arc furnaces also consume carbon electrodes and charge carbon. These concentrated point sources are where CO2 is captured and used: for carbonation curing of concrete, which can lock CO2 into the product and improve early strength,5 and for enriching the air in indoor growing rooms. Whether curing delivers a net climate benefit depends on the energy used to capture and compress the CO2,8 which is one more reason it runs on low-carbon power and is measured, not assumed. None of it is sold as an offset. CTMP does not sell carbon offsets or credits, and will not.
Net effectEvery gas carries a meter, a specification and a destination. What is vented is logged, not hidden.
The salts removed from seawater are treated as a mineral resource, recovered where recovery pays, and the remaining brine is returned to the sea through engineered outfalls.
Every gram of salt in the seawater feed ends up in the brine. Multiply by any plant's feed and the tonnages become very large; the ratios between them do not change. So here are the ratios: what one million cubic meters of seawater carries, from standard seawater composition.ExternalCalculated
Mass carried per 1,000,000 m³ of feed at standard seawater concentrations (salinity about 35 g/L). Logarithmic scale: each gridline is ten times the last.
The chart says which minerals can carry the economics and which cannot. Salt, sulfate, magnesium, calcium, potassium and bromine arrive in industrial quantities; at scale the limit on recovery is market demand and processing energy, not supply. Lithium, at about 180 kilograms per million cubic meters, is a useful by-product, not a business case. Rare earths, gold and platinum group metals are present at parts per trillion or lower. They are not a revenue line, and the design does not count them.
The economic claim, stated precisely. The design target is for mineral revenue to offset the cost of the fresh water given to the host nation.Target Whether it does depends on recovery yields, energy per tonne of product and market prices. Those are exactly the numbers the pilot lines must measure before anyone relies on them.
The platform's own metal stays in its own loop. What can be repaired is repaired, what can be remanufactured is remanufactured, and what cannot is melted back into steel with known chemistry.
Design targets at 4 million tonnes of crude steel a year: internal scrap of roughly 8 to 12 percent of melt returned within the week, and curated external scrap of up to 15 to 25 percent of the charge where local supply and chemistry allow.Target
Net effectFewer tonnes of virgin ore per tonne of finished steel, and tighter chemistry because the history of the scrap is known.
The steel that carries the water is made, tested, tracked and priced inside the loop.
The steel vertical rolls heavy plate for penstocks and pressure parts. In-house shops form, weld, coat and line it. Every piece is inspected and pressure tested before it reaches site. Offcuts, typically 5 to 10 percent of issued plate, return to the furnace as clean scrap.Target
One identifier follows the plate through every step. The gate after testing does not open for a plate with a missing result.
The cost of the plate is the steel at cost, plus rolling energy, weld preparation, testing, coating and on-campus movement, each at its internal transfer price. No supplier rush fee.
Net effectTighter control of price, quality and schedule for the largest steel items on the project. Integration does not make any of the three certain. It removes the part of the risk that comes from waiting on someone else's mill.
Every heat of steel, every plate, every weld and every concrete pour has an identity, a history and a destination. If a required step is missing, the next gate does not open.
A record this complete is also a map of the plant. Operator identities, movement logs, installation locations, process settings and production schedules would hand anyone who wanted to disrupt the site an operating manual. So the Charter draws the line in its first sentence on verification.
Aggregated public reporting, independent attestation and tamper-evident commitments are three of the Charter's four verification layers. The fourth is the Charter text itself.
Every tier reads from the same record. The public view is coarser and later. It is never different. If anyone alters the data, the Charter's tamper-evident commitments make the alteration visible to every tier that checks.11
Net effectQuality is enforced by the record, not promised in a report, and the proof is public without the plant becoming public.
Verticals buy from each other at cost, never at whatever an outside market is charging.
At cost means every applicable production cost, and nothing on top.
What is published is the rule and the outcome. The formulas, coefficients and commercially sensitive inputs behind each price are checked by independent attestation rather than printed, for the same reason the plant layout is not printed.
A modeled price, not a promise. The 0.08 cent figure is the internal power cost used in the CTMP Cost Floor Model.12 It is a planning value until the proof of concept measures what delivered power actually costs. If the meter says otherwise, the meter wins, and the corrected number is reported. Power sold beyond the platform is a different number again: the Charter's posted tariff of US$0.025 per kilowatt-hour at the metered delivery point.11
| Electricity only | At the US industrial average, July 2026 | At the modeled internal price |
|---|---|---|
| One kilogram of hydrogen, about 52 kWh | US$5.08 | 4.2 cents |
| One tonne of hydrogen-route liquid steel, about 3.48 MWh | US$340 | US$2.78 |
Calculated. US industrial average 9.77 cents per kWh.9 Electricity only: these are not the prices of hydrogen or steel. Ore, plant, labor, compression and finishing remain, all at cost. No oil index. No futures premium.
What this does and does not protect against. Internal prices move only when real inputs move. Market markups, speculative spikes and fuel indexes do not enter. But the platform still buys things it does not make: alloying elements, arc furnace electrodes, refractories, electrolyzer catalysts, specialist electronics. Those carry outside price risk, and they are reported as external inputs so the exposure is visible.
Net effectInflation from markups has nowhere to hide. Inflation from genuinely scarce inputs is shown, not buried.
The site is laid out so the compliant action is the easiest one.
Net effectThe aim is for regulators to use the site as a benchmark, because the evidence is there to be verified.
Materials move short distances, once, on fixed electric paths.
Net effectNo fossil fuel burned for on-site logistics, fewer points where people and heavy vehicles meet, and schedules that depend on slots rather than traffic.
Every output is assigned a next use. Every residual is measured and reported. Every internal price is computed from inputs an independent auditor can check.
That is what circular means here: not a claim that nothing is ever wasted, but a design in which waste has to show up in the record, with a number, before it is allowed to exist.
It cannot recycle energy. Materials can go round a loop. Energy cannot. Every loop in this document is driven by one continuous outside input: gravity-fed hydroelectric power. Heat is reused in steps, from high temperature to low, but it only ever runs downhill. This is not a perpetual motion machine. It is a machine designed to waste as little as possible of the energy it is given.
It cannot close every loop to zero. Brine must eventually return to the sea. Heat must eventually be rejected. Some rock no product wants. The goal is to make those residuals small, measured and reported, not to pretend they are absent.
One installation cannot validate every vertical. The claims are proven in stages, and the stages are listed below.
The 50 megawatt proof of concept measures:
Industrial pilot lines, powered by the 50 megawatt stage, must establish:
Two different questions sit behind those lists, and they have two different audiences.
A complete energy balance belongs in engineering validation, in front of the people qualified to check it. It does not belong in an article. What the public is owed is the result: measured, independently attested, and impossible to change quietly.
Nothing described here has been built. Every figure is a design target, a modeled value or a published reference value, to be replaced by measured values stage by stage.
The Measured column is empty today. It fills when the meter runs.
I said at the start that I would hold this article to its own rule. Every stream it names gets a next use or a number. Here is the table.
| Stream | Next use | Residual, and its number |
|---|---|---|
| S-01 Power | Runs the verticals, which build more capacity | Heat, sent down the cascade before rejection |
| S-02 Rock | Aggregate, sand, binders, engineered fill | Unused rock, logged by volume; tonnes by destination reported |
| S-03 Water | Reused until treated back to standard | Releases measured at the fence line; electrolysis counted as consumption |
| S-04 Heat | Preheat, process, chilling, campus loop | Rejected heat, reported after its last useful duty |
| S-05 Gases | Reduction, furnaces, curing, outside buyers | Vented oxygen, logged as value not captured |
| S-06 Brine | Salt, magnesium, calcium, potassium, bromine | Returned brine, monitored in the near field |
| S-07 Metal | Repair, remanufacture, remelt | Outside scrap and alloys, recorded as imports |
| S-08 Plate | Penstock service, then its own maintenance record | Offcuts, back to the melt within the week |
| S-09 | Unassigned | Unlogged |
Eight streams. Eight next uses. Eight numbers.
And a ninth row.
Row nine is the only stream in this document I cannot meter, cannot price and cannot route. It is the 20 minutes you just spent reading it, if you read every word: 4,719 words at the average adult reading speed of 238 words a minute.Calculated10
In a linear economy, I know exactly where that stream goes. Out the back of the plant, into the next scroll, and nobody logs it. Of all the waste streams on earth, it is the one we have trained ourselves not to see.
Rule 1 applies here too.
Every output needs a next use before it is allowed to become a waste. The next use of yours takes thirty seconds, about 2.5 percent of what you have already spent. It asks for no name, no account, no email and no money. It gives your voice a number. The number is public. Nothing about you is.
By September 29, The Wall had numbered 667,101 voices.13
Like every loop in this design, it compounds only if each output gets a next use of its own. Yours. Then three people you bring, once each. Then three each of theirs. Five rounds of three is 1 + 3 + 9 + 27 + 81 + 243: 364 voices where there was one.Calculated
There is one input the loop diagrams left out. Every loop in this design runs on something continuous from outside that it cannot make for itself. For the turbines, it is gravity. For the program, it is people. The Charter says The Wall exists "to make public demand visible so that deployment decisions can reflect actual demand rather than inferred demand."11 No vertical manufactures that. No transfer rule prices it. It arrives from outside, one voice at a time, or it does not arrive.
Nothing leaves without a number.
peoplesctmp.org · Thirty seconds. No account. No name. No email. No money.
Seawater concentrations are standard reference values for ocean water at a salinity of about 35 g/L: sodium and chloride together about 30 g/L, sulfate 2.7, magnesium 1.28, calcium 0.41, potassium 0.40, bromine 0.067, strontium 0.008, lithium 0.00018, iodine 0.00006. Nothing described here has been built.