Energy · Updated July 2026Momentum · accelerating ↗
How close are we to geothermal power anywhere?Can we dig for clean power almost anywhere?
or, simply: Can we dig for clean power almost anywhere?or, precisely: How close are we to geothermal power anywhere?
The physics of engineered reservoirs is proven; the open question is whether they can be drilled cheaply, run for years, and financed at utility scale.Hot rock is everywhere underground. The race is to build the plumbing to reach it — cheaply, safely, and at the scale of a real power plant.
We are here
Cape commissioning becomes frontier — Cape Phase I's first 33 MW GeoBlock is mechanically complete and commissioning toward an announced Q4 2026 start. Next up — First Cape block targets operation (expected Q4 2026).
01 · Where we stand
Four tests between here and the goal
Each threshold is a falsifiable claim with a named next test. We move the meter only when a result is public.
Connected engineered reservoirMake hot rock flow✓ Achieved · Aug 2024
100%
Proven byFORGE sustained 420 gal/min injection for nearly a month with more than 90% recovery.
Repeatable fast drillingDrill many wells quicklyIn progress
75%
Next testCape Phase II must show its 21-day representative result across a fleet and disclose full completed-well cost.
Commercial 100 MW operationRun a utility-scale plantIn progress
70%
Next testCape GeoBlock 1 targets Q4 2026 and the full three-block Phase I targets Q1 2027.
Forty-five-dollar powerCompete on costEarly
48%
Next testAudited Cape construction cost and several years of net generation are required to calculate a comparable realized LCOE.
THRESHOLDS — Thresholds for Enhanced geothermal.
Scale
Measured Projected Goal region
NOTE — The candidate file recommends capital cost rather than mixing project LCOEs with different financing and capacity factors. Every point is a DOE model estimate or target, not an audited plant cost; 2030 is the midpoint of a published range. The 2035 capital value is the modeled level associated with the $45/MWh goal.
02 · How we got here
The record behind the verdict
Major events set large; context events set small but never hidden. Everything below the TODAY rule is a schedule, not a result.
Geothermal electricity is old — but only where the earth volunteers steam. Larderello proved the power; geology confined the map to a few lucky fields.
1904
Geothermal electricity first generatedExperiment
Piero Ginori Conti used steam at Larderello to light five bulbs, establishing the conventional geothermal precedent.
Los Alamos asked the question that defines the field: if hot rock is everywhere, can we build the reservoir ourselves? Circulation proved possible — never cheap, never long.
1970
Hot-dry-rock concept takes shapeTheory
Los Alamos researchers proposed drilling and hydraulically connecting wells to extract heat from impermeable hot rock.
The shale industry had spent two decades learning to drill fast and horizontal. FORGE existed to import that skill into hot granite — and drilling times collapsed.
2015
DOE launches FORGE selectionFunding
DOE began selecting a dedicated EGS field laboratory, describing more than 100 GW of potential US economic capacity.
Fervo proved the shale playbook works for heat. The question moved from physics to finance: can Cape Station drill it cheap, run for years, and sell the power?
2023
Project Red proves horizontal EGSExperiment
A 30-day test delivered 63 L/s at 191 C, equivalent to 3.5 MW, through a 3,250-foot horizontal well pair.
Events outside the declared eras moved the field from doe launches geothermal shot to doe targets competitive economics. The results narrowed the next question without closing it.
2022
DOE launches Geothermal ShotPolicy
DOE targeted a 90% EGS cost reduction to $45/MWh by 2035.
The learning curves and comparisons that justify each threshold's percentage. Every series is measured, with the source event linked in the timeline above.
The learning curve
Hard rock, less time
7.3× fasterfirst well → last well
log scale — a straight line = constant learning rate
NOTE — A measured seven-fold reduction in rock-cutting time across four FORGE wells; it excludes tripping, casing, completion and surface-plant time.
Company-reported drilling time fell while laterals lengthened from 3,250 to 7,500 feet; these are representative wells, not fleet averages.NOTE — Company-reported drilling time fell while laterals lengthened from 3,250 to 7,500 feet; these are representative wells, not fleet averages.Longer horizontal contact is intended to raise heat and power per well, but only operating output can verify the design benefit.NOTE — Longer horizontal contact is intended to raise heat and power per well, but only operating output can verify the design benefit.Reservoir tuning raised recovered fluid from about 70% in a nine-hour test to more than 90% in a near-month test; plotted values are rounded bounds.NOTE — Reservoir tuning raised recovered fluid from about 70% in a nine-hour test to more than 90% in a near-month test; plotted values are rounded bounds.Only the 3.5 MW pilot test is demonstrated; 33, 100 and 500 MW are company nameplate schedules and must be shown as projected.NOTE — Only the 3.5 MW pilot test is demonstrated; 33, 100 and 500 MW are company nameplate schedules and must be shown as projected.
2017 well440 hours
July 2021 well60 hours
COMPARISON — FORGE cut equivalent-depth on-bottom drilling time by more than sevenfold.
Nine-hour test70 % recovered
Near-month test, more than90 % recovered
COMPARISON — FORGE's extended 2024 test improved fluid recovery by at least 20 percentage points over the short test.
First GeoBlock33 MW
Cape planned total500 MW
COMPARISON — Cape Station's planned build-out is more than fifteen times the size of its first commissioning GeoBlock.
Largest local magnitude3.4 ML
Recorded events at ML0.9+200 events, more than
COMPARISON — The Basel project produced a felt magnitude-3.4 event and more than 200 recorded events at magnitude 0.9 or above.
04 · What it unlocks
If the remaining tests pass
Downstream capabilities, drawn dashed because they depend on results not yet in.