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Reference data
Page built2026-10-22
Data as ofAugust 2026

MH-1A nuclear power plant

Retired Panama Very small
Gross capacity
10MW

MH-1A nuclear power plant is a pressurised water reactor unit at MH-1A nuclear power plant in Panama rated at 10 MW gross. It is retired. Commercial operation began 1 Jan 1968.

Specification
Reactor type Pressurised water reactor (PWR)
Modelnot disclosed
SizeVery small20 MWe or less
CoolantLight water
ModeratorLight water
Gross capacity10MW
Net capacity (reference)not disclosed
Net capacity (design)not disclosed
Thermal outputnot disclosed
NSSS vendornot on record
Typical enrichment3–5% U-235
Ownership & location
SiteMH-1A nuclear power plant
Unitnot stated
CountryPanama
OwnerUS Army Corps of Engineers100%
Department of Defense
Coordinates 9.2647, -79.9270
Fuel chain for this unit
Fuel form
Uranium dioxide pellets in zirconium-alloy cladding
Enrichment
3–5% U-235
Who makes this assembly
Upstream

Enriched fuel means this unit sits downstream of five conversion plants and four enrichment operators holding 88% of world capacity between the top three.

RosatomUrencoCNNCOrano
Conversion
AEOICamecoCNNCCNNCCNNCConverDynOranoRosatomTVELWestinghouse
Fabricator capability is recorded against reactor type and model line, not against named units, utilities do not publish fuel contracts. See the fuel chain.

Timeline

  1. 24 Jan 1967First criticality
  2. 1 Jan 1968Commercial operation
  3. 1 Jan 1977Permanent shutdown

Sources

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