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Distribution / SPEN / Site

St Marys Isle Solar Farm

Naturalis Energy Developments Ltd at Tongland

SPEN Embedded Capacity Register >1MW, September 2026 edition

Site, company and substation names are shown as they appear in the registers, including capitalisation.

Target energisation date
27 Jun 2030
Status
Accepted to connect
Customer
Naturalis Energy Developments Ltd
Site name
St Marys Isle Solar Farm
Address
Mutehill, Kirkcudbright, Dumfries and Galloway, DG6 4XF
Grid reference
Easting 269800, northing 548800
Licence area
Central and Southern Scotland (SPD)
Grid supply point
Tongland
Bulk supply point
Not stated
Primary substation
Not stated
Connection voltage
33 kV
Technology group
Storage
Energy source 1
Stored Energy, Storage - Electrochemical (Batteries): 12 MW registered
Energy source 2
Solar, Photovoltaic: 36 MW registered
Registered capacity
48 MW
Change to maximum export capacity
36 MW
Change to maximum import capacity
12 MW
Flexible connection
Yes
In a connection queue
Yes
Date accepted
15 Dec 2022
Date connected
Not stated
Distribution reinforcement reference
Not published by SPEN
Transmission reinforcement reference
SPT-RI-176, SPT-RI-2127, SPT-RI-213, SPT-RI-221, SPT-RI-222, SPT-RI-284
Export MPAN
Not stated
Import MPAN
Not stated
Last updated
29 Nov 2024
Tracked since
March 2026 edition

Change history

Tracked since the March 2026 edition, across 7 editions.

Changes to its status, capacity, technology or customer, newest first.

No change to its status, capacity, technology or customer.

Also at Tongland

GSP view

4 other sites at this grid supply point in the September 2026 edition. In all, the sites here total 184 MW: 36 MW connected, 148 MW accepted to connect.

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