QueueWatchby QueueQuant Price my project Get the plan that holds up best for your site, and where that answer flips.
Distribution / SSEN / Site

BUTTS FIELD ENERGY STORAGE

ECOTRICITY GENERATION LTD at NURSLING GSP

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
31 Dec 2036
Status
Accepted to connect
Customer
ECOTRICITY GENERATION LTD
Site name
BUTTS FIELD ENERGY STORAGE
Address
BUTTS FIELD ENERGY STORAGE, MILL LANE NURSLING, SOUTHAMPTON, HAMPSHIRE, SO16 0YE
Grid reference
Easting 435578, northing 115796
Licence area
Southern England (SEPD)
Grid supply point
NURSLING GSP
Bulk supply point
Not stated
Primary substation
NURSLING
Connection voltage
132 kV
Technology group
Storage
Energy source 1
STORED ENERGY (ALL STORED ENERGY IRRESPECTVE OF THE ORIGINAL ENERGY SOURCE), STORAGE - ELECTROCHEMICAL (BATTERIES): 99 MW registered
Registered capacity
99 MW
Change to maximum export capacity
99 MW
Change to maximum import capacity
109.474 MW
Flexible connection
Not stated
In a connection queue
Not published by SSEN
Date accepted
4 Jan 2023
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
December 2025 edition

Change history

Tracked since the December 2025 edition, across 10 editions.

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

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

Also at NURSLING GSP

GSP view

37 other sites at this grid supply point in the September 2026 edition, 1 of them at NURSLING, the same primary substation. In all, the sites here total 1.4 GW: 0.2 GW connected, 1.2 GW accepted to connect.

See all 37

QueueQuant

Price what a delay would do to your project

QueueWatch reports what changed in the DNOs' published connection registers. It doesn't tell you what to do about it. That's what QueueQuant is for.

Give QueueQuant a site and it compares every way you could power it, on the grid or off it: waiting for the firm date, taking a non-firm offer, building a private wire or going off-grid, across every combination of contracted capacity, generation and battery. That’s millions of possible plans, each tested against thousands of possible futures for delay, curtailment and price. It returns the one plan that holds up best, even when that plan is not to build.

Price my project

Get the plan that holds up best for your site, and where that answer flips.

What you get from QueueQuant

  • The route to power that wins
  • How to size every asset on the site
  • The level of delay or curtailment at which that answer flips
  • Whether the project is worth building at all
  • How bad the worst outcomes get, at the risk level you choose