ZEMANIUMD1 · The Opportunity
Earth Power Systems · the opportunity

Earth. At full power.

The AI century is short of firm power. Geothermal has always been the answer — the constraint is cost. Our mission is $30–45/MWh: geothermal electricity, around the clock, around the world.

The frontier is drilling hotter than it can see. Superhot wells — rock above 375 °C — die at transients nobody measures: across the 20-well supercritical base rate, failures are dominated by thermal stress at quench and kick-off verified. The working instrument stack stops near 200 °C. Above 375 °C there is no test standard, no qualification service, no ruler — every envelope is negotiated by phone and a vendor datasheet.

Duty map one-line: working temperature classesTemperature axis with four downhole instrument classes and the Cool-Brain 450 C by 500 h target.Working temperature — and the class nobody covers200 °C300 °C400 °C500 °CMWD/LWD · 200–210 °C workinglogging · 350 °C for hourspoint · 500 °CCool-Brain · 450 °C × 500 hSurvival ratings ≠ working duty [vendor-stated]. The 500-hour cell at 450 °C is empty — that cell is the company [SIMULATED to date].

What we are building. Zemanium is the measurement and qualification layer of superhot rock. Cool-Brain profiles 450 °C-class temperatures through a passive waveguide while every active component stays cold — correcting the drift and fouling that kill downhole instruments, in place. The first witnessed 500-hour qualification record at 450 °C seeds the standard the segment grades on.

$61.65 → $29.80
per MWh, audited spec ladder — one named invention per rung model
5 of 5
inventions run against their bench gates — 56 contracts green simulated
Q1 2027
the 500 h @ 450 °C record — the segment's first, witnessed
The ask

Thirty minutes for a technical review. The $2–3M pre-seed is open against a dated results schedule: chain proof in 30 days, first hot data in 90, the 500-hour record in Q1. Whichever developer wins the superhot race, the category grades on our yardstick.

Zemanium · Earth Power SystemsD1 · 2026-09-30 · every number labeled