SSEN network headroom

Frozen March 2026 SSEN network estimates with unknown observation period, separate MW/MVA and source constraints.

Current version: ssen-headroom-march-2026-20261024-v1
Lifecycle: edition
Freshness basis: Source check
Freshness date: 2026-10-24
Editions: 1
Confidence: Medium
Serving: Live ledger

Open decision surface JSON export

Compare releases

What changed, and what did not.

Select any two retained editions. Status labels come from the publisher or the Solar Analytica release boundary; rows are never silently rewritten into the latest state.

Earlier editionLater edition

No earlier edition is retained, so this edition is shown against itself.

Edition comparison

Field	ssen-headroom-march-2026-20261024-v1	ssen-headroom-march-2026-20261024-v1	Read
Release status	snapshot	snapshot	Unchanged
Published	2026-10-24	2026-10-24	Unchanged
Rows	998	998	Unchanged
Recorded changes	Not recorded	Not recorded	Unchanged
BSP Records	80	80	Unchanged
GSP Records	99	99	Unchanged
N A To Zero	No	No	Unchanged
Attribution	Source: Scottish and Southern Electricity Networks (SSEN), Generation Availability and Network Capacity, Headroom Dashboard Data - March 2026. CC BY 4.0.	Source: Scottish and Southern Electricity Networks (SSEN), Generation Availability and Network Capacity, Headroom Dashboard Data - March 2026. CC BY 4.0.	Unchanged
Demand Unit	MVA	MVA	Unchanged
Licence Url	https://creativecommons.org/licenses/by/4.0/	https://creativecommons.org/licenses/by/4.0/	Unchanged
SEPD Records	545	545	Unchanged
SHEPD Records	453	453	Unchanged
Edition Label	March 2026	March 2026	Unchanged
Modifications	Solar Analytica selected 28 infrastructure fields, retained decimal values as strings and labelled missing headroom. No SSEN endorsement implied.	Solar Analytica selected 28 infrastructure fields, retained decimal values as strings and labelled missing headroom. No SSEN endorsement implied.	Unchanged
Primary Records	819	819	Unchanged
Demand Positive	502	502	Unchanged
Generation Unit	MW	MW	Unchanged
Projected Fields	28	28	Unchanged
Raw Zero Retained	Yes	Yes	Unchanged
Observation Period	Not recorded	Not recorded	Unchanged
Collector Scheduled	No	No	Unchanged
Generation Positive	113	113	Unchanged
Capacity Aggregation	No	No	Unchanged
Demand Excludes Bess	Yes	Yes	Unchanged
Demand Reported Zero	397	397	Unchanged
Record Revision Dates	Not recorded	Not recorded	Unchanged
Infrastructure Records	998	998	Unchanged
Observation Period End	Not recorded	Not recorded	Unchanged
Source Response Sha256	75f04c20a9d8fc24eec7b7eb1f89f2534bd7dcb55964a10fd0f6fb488799a2dd	75f04c20a9d8fc24eec7b7eb1f89f2534bd7dcb55964a10fd0f6fb488799a2dd	Unchanged
GSP Headroom Unavailable	99	99	Unchanged
Generation Reported Zero	786	786	Unchanged
Observation Period Start	Not recorded	Not recorded	Unchanged
Generation Includes Storage	Yes	Yes	Unchanged
Source Resource Modified At	2026-03-11T12:12:32.113749	2026-03-11T12:12:32.113749	Unchanged
Different Direction RAG Records	570	570	Unchanged
Historical Glossary Equivalence	Not recorded	Not recorded	Unchanged
Source Original Publication Date	Not recorded	Not recorded	Unchanged

Initial frozen March 2026 SSEN infrastructure projection: 998 AssetID records and 28 fields. Unknown observation period; no historical comparison or connection offer.

Trust declaration

Fitness, limits and the check performed.

Publication contract pass

Suitable for the named scope when used with the published vintage, confidence and known limit. It is not a substitute for project-specific diligence.

Institutional environment: documented; SSEN, Generation Availability and Network Capacity is named as source; Solar Analytica owns the published transformation and limits.
Relevance: documented; SEPD/SHEPD licence areas; 998 infrastructure records, 28 retained fields; no feeder/postcode coverage or connection offer; observation period unknown
Accuracy and reliability: documented; Observation period unknown. March edition and 11 March resource modification are not demand measurement dates. Generation MW includes storage; demand MVA excludes battery demand. 99 GSP headrooms N/A, not zero. Source RAG/constraints and hierarchy retained; no pooled capacity or connection offer. Exact factors, source publication/revisions and historic glossary equivalence unknown.
Timeliness: documented; By edition; no automatic collector. No fixed publisher date is recorded; review is event-driven.

Receipt lineage

Which edition, and what sits upstream.

Receipt resolution and dependency health are separate. A complete lineage path cannot make a recovering source decision-ready.

matched

Resolution: direct exact version.

ssen-network-headroom / ssen-headroom-march-2026-20261024-v1

Source check: sourceCheckedAt satisfies the source_check date basis.

Freshness records which declared date satisfies the product's registered basis. Dependency causes describe upstream operational state. Neither establishes source correctness or a changed decision outcome.

No upstream product dependency is registered. This product is treated as a source or standalone evidence surface.

Provenance

Current does not mean timeless.

Observation period unknown. March edition and 11 March resource modification are not demand measurement dates. Generation MW includes storage; demand MVA excludes battery demand. 99 GSP headrooms N/A, not zero. Source RAG/constraints and hierarchy retained; no pooled capacity or connection offer. Exact factors, source publication/revisions and historic glossary equivalence unknown.

Coverage: SEPD/SHEPD licence areas; 998 infrastructure records, 28 retained fields; no feeder/postcode coverage or connection offer; observation period unknown. Refresh contract: By edition; no automatic collector.

SSEN, Generation Availability and Network Capacity Latest edition evidence Methodology