Madison County

Amazon Web Services · Canton, Mississippi

Water — consumed, not returned

Taken from the basin536M gal/yr

Evaporated on site94.7M gal

Making the power441M gal

Basin stressLow

Where the water comes from: Municipal potable supply
Cooling: Closed-loop with evaporative peaking
Basis: Modelled from cooling design — WUE 0.28 L/kWh

Air — what the stacks emit

Nitrogen oxides141t/yr

Sulphur dioxide180t/yr

Fine particulates20.6t PM2.5

Health damages$19.8M/yr

Where it burns: MISO South — Louisiana / Miss.
Generation mix: Gas 72 · Nuclear 14 · Coal 9
CO₂e: 537 kt/yr — climate, not air quality

Who wanted it

Who asked for it: AWS — self-build and cloud customers
Who approved it: Mississippi legislature passed a bespoke $10B incentive package in a special session in 2024; Entergy Mississippi supply, with new solar and gas approved to serve it
What it serves: AWS cloud region and AI capacity
IT capacity: 150 MW running of 650 MW announced

The single largest private investment in Mississippi history, approved in a two-day special session. Entergy Mississippi's supply plan for it added both solar and gas capacity that all ratepayers help underwrite.

ratepayer-cost disputenew gas plant built for it

Where it is

32.6126°, -90.0326°

Google Maps Satellite See it on the map

Water and air figures are modelled from disclosed capacity, not measured — site-level error is roughly ±40%. Diesel backup generators are not counted, so on-site figures are floors. Full method.