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Distribution / SSEN / Site

READY - 200MW BATTERY

SPE ELECTRICAL at LALEHAM

SSEN Embedded Capacity Register, September 2026 edition

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

Target energisation date
28 Feb 2031
Status
Accepted to connect
Customer
SPE ELECTRICAL
Site name
READY - 200MW BATTERY
Address
LAND ADJACENT TO THE EAST OF CARLETON RD SUNBURY ON THAMES, SUNBURY, SURREY, TW17 8QA
Grid reference
Easting 508533, northing 168306
Licence area
Southern England (SEPD)
Grid supply point
LALEHAM
Bulk supply point
Not stated
Primary substation
LALEHAM
Connection voltage
132 kV
Technology group
Storage
Energy source 1
STORED ENERGY (ALL STORED ENERGY IRRESPECTVE OF THE ORIGINAL ENERGY SOURCE), STORAGE - ELECTROCHEMICAL (BATTERIES): 200 MW registered
Registered capacity
200 MW
Change to maximum export capacity
200 MW
Change to maximum import capacity
210.526 MW
Flexible connection
Not stated
In a connection queue
Not published by SSEN
Date accepted
10 Dec 2021
Date connected
Not stated
Distribution reinforcement reference
Not published by SSEN
Transmission reinforcement reference
Not published by SSEN
Export MPAN
Not stated
Import MPAN
Not stated
Last updated
10 Feb 2026
Tracked since
August 2023 edition

Change history

Tracked since the August 2023 edition, across 38 editions.

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

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

Also at LALEHAM

GSP view

10 other sites at this grid supply point in the September 2026 edition, 1 of them at LALEHAM, the same primary substation. In all, the sites here total 568 MW: 16 MW connected, 552 MW accepted to connect.

See all 10

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