LURRACORE mine shaft 3,500 feet deep

Underground Pumped Hydro Storage

POWERING
THE AI ERA
FROM THE
GROUND DOWN.

We convert abandoned hard rock mines into firm, dispatchable underground power infrastructure for AI compute — delivered directly behind the meter.

Partner Inquiries The Technology

950

Sites Screened

15

States

50yr

Asset Life

How It Works

The Mine Is
the Battery.

Water stored in the upper reservoir falls through the shaft and drives a turbine at depth. The turbine never stops. On separate independent shafts, the pump train lifts water back using curtailed renewable energy — pumping and generation run at the same time, not in alternating cycles.

Energy stored as potential head. Power delivered firm and continuous — 24/7, 365 — behind the meter. Renewable surplus is not a problem for LURRAGRID. It is the recharge source.

SURFACE CURTAILED ENERGY IN BTM OUTPUT DATA CENTER ↑ PUMP RETURN SHAFT GENERATION SHAFT UPPER RESERVOIR 1,500 ft 2,500 ft 3,500 ft PUMP TRAIN DRIVEN BY CURTAILED ENERGY TURBINE TRAIN SERVES THE DATA CENTER 24/7 LOWER RESERVOIR PUMPING AND GENERATION RUN CONCURRENTLY — INDEPENDENT SHAFTS

The Market Reality

Where the Grid Ends.
LURRAGRID Begins.

AI compute demand is doubling every 18 months. Grid interconnection queues run five to seven years.

Renewables produce surplus energy the grid cannot absorb — overnight, midday, off-peak. That surplus is our recharge fuel.

LURRAGRID absorbs that surplus, stores it underground, and delivers firm behind-the-meter power continuously — 24 hours a day, 365 days a year.

The Architecture

Three Layers. One Platform.

Full Architecture →
01

LURRACORE

Underground Storage & Dispatch

Existing hard rock shafts become upper and lower reservoirs. The mine is the battery.

02

LURRACASCADE

Patent-Pending Continuity

Dual-reservoir threshold switching designed to support continuous dispatch across reservoir cycles.

03

LURRACHARGE

Renewable Surplus Recharge

Acquires curtailed energy to drive the pump train whenever the grid cannot absorb it. Renewable intermittency is our recharge strategy.

The Portfolio

Three LURRANODES.

All Sites →

LURRANODE 001

Mather B

Negaunee, Michigan · Hard Rock Iron Ore

Depth: 3,500 ft

Phase 1 — Anchor Site

Active

LURRANODE 002

Quincy

Hancock, Michigan · Hard Rock Copper

Depth: 6,200 ft

Phase 2

Phase 2

LURRANODE 003

Comstock

Virginia City, Nevada · Silver & Gold

Depth: 3,360 ft

Phase 3

Phase 3

Peer-Reviewed Foundation

Three years.
One patent.
One platform.

Michigan Technological University. Alfred P. Sloan Foundation Grant G-2018-11305. Prior art published Zenodo, May 2026.

Research Foundation → DOI ↗

3yr

Peer-Reviewed Study

4

Independent Patent Claims

950

Pre-Screened Sites

Partner With LURRAGRID

Ready to build firm power
for the AI era?

Data center operators, municipal mine owners, EPC partners, and institutional investors — every conversation starts here.

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