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gb_spen_nshr

SPEN Network Scenario Headroom Report

Published by SP Energy Networks · GB · Yearly

Grantedcommercial_use_with_attributionDisabled

Forecast post-intervention headroom (MW) for demand and for synchronous and fully-rated-converter generation at every SPD primary and SPM primary and grid substation group, per scenario, to 2050.

What is withheld, and why

Nothing is withheld. Values are served with the attribution the licence asks for: SP Energy Networks, NDP Part 2: Network Scenario Headroom Report (SPD / SPM), https://spenergynetworks.opendatasoft.com/explore/dataset/spd-nshr-data-workbook/ and https://spenergynetworks.opendatasoft.com/explore/dataset/spm-nshr-data-workbook/. Keep it with any figure you show.

The datasets carry CC BY 4.0; the portal's own SP Energy Networks Open Data Licence is a CC BY 4.0 clone that SPEN "may at any time revise … without notice", so the licence text is to be snapshotted when a keyed run first publishes. SPEN prescribes no attribution formula; the one above names the publisher, the datasets and their URLs, and the date of last update travels as freshness.source_effective_at.

Licence and rights evidence

Licence
CC BY 4.0 (SP Energy Networks Open Data Licence) (opens the operator’s site)
Attribution
SP Energy Networks, NDP Part 2: Network Scenario Headroom Report (SPD / SPM), https://spenergynetworks.opendatasoft.com/explore/dataset/spd-nshr-data-workbook/ and https://spenergynetworks.opendatasoft.com/explore/dataset/spm-nshr-data-workbook/required
Technical access
Not established
Commercial use
Yes
May be cached
Yes
May be redistributed
Yes
Derived data allowed
Yes

Evidence

Methodology

1 version(s)

SPEN Network Development Plan Part 2 — Network Scenario Headroom Report

gb_spen_nshr_2026 · v2026

Post-intervention headroom (MW) per substation or substation group, year and scenario, from existing network models, scenario forecasts and known intervention plans; each year for ten years, then every five years to 2050.

Capacity basis
operator calculated
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_spen_nshr
Documentation
Operator’s method (opens the operator’s site)

The operator’s own caveats

  • This is not necessarily equal to the contractually available headroom shown in connection heatmaps.
  • SP Energy Networks does not accept any responsibility or liability for the accuracy or completeness of this data

How the publication maps to the model

availability types
["available"]
binding
false
directions
["offtake","injection"]
firmness
["unknown"]
geometry precision
none
includes reserved projects
null
non additive
true
notes
["headroom_type maps Demand to offtake / generic_load, and Generation (Synchronous) and Generation (Fully Rated Converter) to injection / generic_generation with variants synchronous and fully_rated_converter. Any other type is refused.","SPEN describes post-intervention headroom and states no firmness: firmness is unknown. Its schema warns the generation headroom \"is not necessarily equal to the contractually available headroom shown in connection heatmaps\".","Horizon: target_year from year (SPD, text) or dfes_year (SPM, a date at year precision). SPEN's year is the winter of that year and the financial year ending the following March (2022 = 2022/23); financial_year is kept in each value's details. Scenario as published (Low, BV, high).","Identity: licence area, substation/group name and voltage. No coordinates are published.","Written against the published schemas; value formatting is unverified until a keyed run."]
spatial scope
substation
technologies
["generic_load","generic_generation"]
units
["MW"]

Query this source

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