ArkLight · TriArk Water Balance

ARKLIGHT POWER™ · TRIARK

Water Balance — TriArk vs. the Feared Machine

The 1–5 million gal/day fear is real — for evaporative-cooling data centers. That's one cheap cooling choice, not physics. ArkLight consumes ≈none and manufactures water. Every figure traces to a row.

◤ THE FEARED MACHINE — evaporative cooling

−1M to −5M

gal/day consumed, zero produced. Cooling towers boil water to the sky to shed heat.

◢ ARKLIGHT TRIARK — one 45 MW cell

+90k to +120k

gal/day produced, ≈zero consumed. Closed-loop, dry-cooled. The burn makes the water.

1 · Closed-loop, dry-cooledCooling water circulates. Nothing evaporates. Consumption ≈ 0.

2 · Cooling is free heatTrigeneration — turbine exhaust drives absorption chillers. No towers, no compressor load.

3 · Combustion makes waterCH₄ + 2O₂ → CO₂ + 2H₂O. The reaction itself yields water.

TRACED ROWS — every number, its derivation
FIGURE	VALUE	HOW IT'S DERIVED
Water per lb methane	2.25 lb	36 g (2×H₂O) ÷ 16 g (CH₄) = 2.25. Exact.
Water per MMBtu gas	~11.7 gal	2.25 lb ÷ 8.34 lb/gal ÷ ~23,000 BTU/lb
45 MW cell burn	315–415 MMBtu/hr	heat rate 7,000–9,200 BTU/kWh (recuperated aeroderivative)
Gross combustion water	90k–125k gal/day	11.7 × (315…415) MMBtu/hr × 24 hr
Site consumption	≈ 0	closed-loop dry-cool — nothing evaporates

NET WATER HANDED TO THE TOWN — live

⚠ THE ONE OPEN ROW — flue-gas condensate recovery % · OPEN - one number, nobody's study is pending. The water math itself is SEALED (18690072).

The recovery fraction is the ONE figure on this page that is not measured. Everything above it traces to a row. This is an engineering number for a condensing heat exchanger on our own stack - it comes from a vendor curve or a test, not from a model guessing. Until somebody measures it, move the slider and the net moves with it; the page never pretends to know.

0%recovery fraction100%

NET =—gal/day handed over · recovery 60%

NET = gross combustion water × recovery − site consumption (≈0). Stated as net, not gross. Flue condensate runs slightly acidic — treated / polished before hand-off.

The honest sentence: The feared machine consumes millions of gallons and produces none; ours consumes ≈none and produces tens of thousands of gallons a day. Different architecture — not magic math.