Substation · Scotland, United Kingdom

Unst Primary

Unst Primary is a substation in Scotland, United Kingdom, connected by Scottish Hydro Electric Power Distribution plc.

Facts

Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.

Fact	Value	Source
Location	Scotland	SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026
Grid operator	Scottish Hydro Electric Power Distribution plc	SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026
Congestion (offtake)	Full (rag: Red, constraint: Upstream Voltage Constraint)	SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026
Congestion (feed-in)	Full (rag: Red, constraint: Upstream Thermal Capacity)	SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026
Demand headroom	0 MVA	SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026
Generation headroom	0 MW	SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026
Transformers	1 x 4MVA	SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026
Level	Primary	SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026
Fed from	Shetland / Gremista	SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026
Voltage	33/11 kV	SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026
Coordinates	60.7985, -0.8263	SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026

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Within 50 km of this substation: 3 grid connections (2 operating, 21.4 MW), measured from the coordinates in the facts above.

Name	Kind	Size	Status	Distance
Garth Wind Farm grid connection	Grid connection	4.28 MW	Operating	36 km
Garth Farmhouse grid connection	Grid connection	74.9 MW	Planned	46 km
Sullom VOE grid connection	Grid connection	17.1 MW	Operating	46 km