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

Agesta nuclear power plant

Retired Sweden Very small
Gross capacity
12MW

Agesta nuclear power plant is a pressurised heavy water reactor unit at Agesta nuclear power plant in Sweden rated at 12 MW gross. It is retired. Commercial operation began 1 May 1964.

Specification
Reactor type Pressurised heavy water reactor (PHWR)
Modelnot disclosed
SizeVery small20 MWe or less
CoolantHeavy water
ModeratorHeavy water
Gross capacity12MW
Net capacity (reference)10MW
Net capacity (design)9MW
Thermal output80MWt
NSSS vendornot on record
Typical enrichmentNatural uranium, 0.71% U-235
Ownership & location
SiteAgesta nuclear power plant
Unitnot stated
CountrySweden
OwnerVattenfall AB100%
OperatorSvafo
Coordinates 59.2062, 18.0814
Fuel chain for this unit
Fuel form
Natural uranium dioxide bundles
Enrichment
Natural uranium, 0.71% U-235 no enrichment required
Who makes this assembly
Upstream

This unit runs on natural uranium, so its fuel chain has no enrichment step at all: mine → mill → conversion → fabrication. That is the shortest fuel chain of any commercial reactor type, and it makes the operator independent of the four organisations that control enrichment worldwide.

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Fabricator capability is recorded against reactor type and model line, not against named units, utilities do not publish fuel contracts.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. 1 Dec 1957Construction start
  2. 17 Jul 1963First criticality
  3. 1 May 1964Grid connection
  4. 1 May 1964Commercial operation
  5. 2 Jun 1974Permanent shutdown

Sources

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