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gb_npg_gsp_connection_info

NPg GSP connection information

Published by Northern Powergrid · GB · When the operator updates it

Grantedcommercial_use_with_attributionHealthy

Per NPg grid supply point: connected capacity to date, the transmission-distribution reverse power limit, and the GSP technical export limit and seasonal import limits where technical limits are enabled.

What is withheld, and why

Nothing is withheld. Values are served with the attribution the licence asks for: Supported by Northern Powergrid Open Data. Keep it with any figure you show.

NPg's licence (based on OGL v3.0) asks for the statement to be displayed prominently and, where possible, a link to the licence.

Licence and rights evidence

Licence
Northern Powergrid Open Data Licence v1.0 (opens the operator’s site)
Attribution
Supported by Northern Powergrid Open Datarequired
Technical access
Yes
Commercial use
Yes
May be cached
Yes
May be redistributed
Yes
Derived data allowed
Yes

Evidence

Methodology

1 version(s)

NPg Grid Supply Point Connection Information

gb_npg_gsp_connection_info_2026 · v2026-02

GSP technical limits as NPg publishes them: an export limit calculated from the gross GSP minimum demand at the four cardinal points (best case taken), and import limits for three periods of the year; plus connected capacity and the transmission-distribution reverse power limit.

Capacity basis
operator published
Network state
unknown
Binding
No
Additive across assets
No — do not sum these figures
The method accounts for
reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Comparability class
gb_technical_limits_npg
Documentation
Operator’s method (opens the operator’s site)

The operator’s own caveats

  • These technical limits are calculated based on the gross GSP minimum demand (not including contribution from embedded power stations).
  • customers' generation may be curtailed to limit power flow in the reverse direction through these transformers

How the publication maps to the model

availability types
["total","connected","available"]
binding
false
directions
["offtake","injection","unknown"]
firmness
["conditional","unknown"]
geometry precision
none
includes reserved projects
null
non additive
true
notes
["Technical limits are the import/export ceilings under which conditional connection offers are made at a GSP where technical limits are enabled: availability_type total, firmness conditional.","The export limit covers the whole year (season all: \"calculated at the four cardinal points and the best-case is taken\"); import limits are per period: winter (December - February), summer (June - October), access_period (March - May and September - November), overlapping as published.","Import limits are published as negative numbers and kept so; Bradford West's export limit is negative (-0.5 MW), kept and flagged.","Connected capacity to date is \"total capacity of existing connections made on the GSP\" without saying generation or demand: direction and technology unknown.","The reverse power limit (MVA) is the transmission-distribution transformers' ceiling enforced by a control scheme; kept as a total, firmness unknown.","developer_capacity_available_mw is text and empty at every GSP today; published values will be read when they appear.","Blank cells are values NPg does not publish for that GSP and produce no series."]
spatial scope
gsp
technologies
["generic_load","generic_generation","unknown"]
units
["MW","MVA"]

Query this source

curl "https://api.gridcapacityapi.com/v1/capacity/search?source=gb_npg_gsp_connection_info&limit=20" \  -H "Authorization: Bearer gc_live_..."