Ust-Kuyga nuclear power plant

Ust-Kuyga nuclear power plant is a nuclear site in Russia with 2 units on record. None is currently operating.

Pre-construction1circle area ∝ site capacitydashed = approximate positionThis plant’s position is approximate in the source data, so it may be several kilometres from where it is drawn. Coastlines, borders and lakes: Natural Earth (1:10 million, public domain), which is generalised, so a coastal plant can sit a couple of kilometres off its true shoreline. Site positions: Global Nuclear Power Tracker.

Units on record

Operating

Operating capacity

not disclosed

Country

Russia

Units

Unit	Status	Type	Model	Gross MW	Online
Unit 1	Pre-construction	PWR	RITM-200N	55	2028
Unit 2	Announced	PWR	RITM-200N	55	-

Unit by unit

Each unit's rating, type and milestone dates as recorded by the Global Nuclear Power Tracker, with any correction we made to it. A dash or "not disclosed" means the source does not give the value.

Ust-Kuyga nuclear power plant 1 Pre-construction

Reactor type	Pressurised water reactor (PWR)
Model	RITM-200N
Size class	Small
Gross capacity	55MW
Net capacity	not disclosed
Thermal output	not disclosed
Enrichment	3–5% U-235
NSSS vendor	Rosatom
Owner	Rosatom100%
Operator	Rosenergoatom

Construction start	1 Jan 2024
Commercial operation	1 Jan 2028

Ust-Kuyga nuclear power plant 2 Announced

Reactor type	Pressurised water reactor (PWR)
Model	RITM-200N
Size class	Small
Gross capacity	55MW
Net capacity	not disclosed
Thermal output	not disclosed
Enrichment	3–5% U-235
NSSS vendor	Rosatom
Owner	Rosatom100%

Construction start	1 Jan 2024

Site detail

Location	Ust'-Kuiga, Sakha, Russia
Coordinates	69.9963, 135.5713approximate
Elevation	not given: the position is only approximate
Setting	not given: the position is only approximate
Region	Eastern Europe
Units by status	Pre-construction: 1 Announced: 1

Owners & operators

Owners	Rosatom
Operators	Rosenergoatom

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Sources

Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
GEM.wiki entry (further reading) , CC BY-SA 4.0, linked, not quoted

How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data