Substation · 66 kV · primary

Hayes

Latest published values

26 served · 0 withheld

Each row is what the operator’s latest published dataset reports for one combination of direction, technology, measure, firmness and horizon. Hosting-capacity figures are indicative and reflect what operators publish. They are not a connection offer; only the operator can confirm capacity for a specific request.

Latest published capacity values, one row per series
Direction	Technology	Measure	Value	Firmness	Horizon	Source date
Injection	Generation (any)	Available	69.06 MVA	Unknown	Now (snapshot)	31 May 2026
Injection	Generation (any)	Available	69.06 MVA	Unknown	Now (snapshot)variant: reverse_power_flow	31 May 2026
Injection	Generation (any)	Connected	0 MVA	Unknown	Now (snapshot)	31 May 2026
Injection	Generation (any)	Contracted	0.99 MVA	Unknown	Now (snapshot)	31 May 2026
Injection	Generation (any)	Contracted	0 MVA	Unknown	past_connection_activityvariant: connection_offers_accepted	31 May 2026
Injection	Generation (any)	Contracted	0	Unknown	past_connection_activityvariant: connection_offers_accepted_count	31 May 2026
Injection	Generation (any)	Requested	0 MVA	Unknown	past_connection_activityvariant: budget_estimates_provided	31 May 2026
Injection	Generation (any)	Requested	0	Unknown	past_connection_activityvariant: budget_estimates_provided_count	31 May 2026
Injection	Generation (any)	Requested	0 MVA	Unknown	past_connection_activityvariant: connection_offers_made	31 May 2026
Injection	Generation (any)	Requested	0	Unknown	past_connection_activityvariant: connection_offers_made_count	31 May 2026
Injection	Generation (any)	Total	60 MVA	Firm	Now (snapshot)	31 May 2026
Injection	Generation (any)	Total	60 MVA	Unknown	Now (snapshot)variant: reverse_power_flow	31 May 2026
Injection	Other storage	Connected	0 MVA	Unknown	Now (snapshot)	31 May 2026
Injection	Other storage	Contracted	0 MVA	Unknown	Now (snapshot)	31 May 2026
Offtake	Load (any)	Available	0 MVA	Unknown	Now (snapshot)	31 May 2026
Offtake	Load (any)	Connected	33.58 MVA	Unknown	Now (snapshot)	31 May 2026
Offtake	Load (any)	Contracted	22.79 MVA	Unknown	Now (snapshot)	31 May 2026
Offtake	Load (any)	Contracted	10.5 MVA	Unknown	past_connection_activityvariant: connection_offers_accepted	31 May 2026
Offtake	Load (any)	Contracted	2	Unknown	past_connection_activityvariant: connection_offers_accepted_count	31 May 2026
Offtake	Load (any)	Requested	4 MVA	Unknown	past_connection_activityvariant: budget_estimates_provided	31 May 2026
Offtake	Load (any)	Requested	1	Unknown	past_connection_activityvariant: budget_estimates_provided_count	31 May 2026
Offtake	Load (any)	Requested	7.2 MVA	Unknown	past_connection_activityvariant: connection_offers_made	31 May 2026
Offtake	Load (any)	Requested	2	Unknown	past_connection_activityvariant: connection_offers_made_count	31 May 2026
Offtake	Load (any)	Total	60 MVA	Firm	Now (snapshot)	31 May 2026
Offtake	Other storage	Connected	0 MVA	Unknown	Now (snapshot)	31 May 2026
Offtake	Other storage	Contracted	0 MVA	Unknown	Now (snapshot)	31 May 2026

SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)

What each value means

Methodology, both clocks, provenance and rights

Injection · Generation (any) · Available

69.06 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 69.06 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099 · payload sha256 96ee867d1813…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: rag: Green
Operator note: rag colour: green
Operator note: source field: generationAvailableCapacity

Injection · Generation (any) · Available

69.06 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 69.06 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot) · variant: reverse_power_flow
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099 · payload sha256 96ee867d1813…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: source field: reversePowerFlowAvailableCapacity

Injection · Generation (any) · Connected

0 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099_Generation · payload sha256 d4e543c7f38e…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: aggregate: true
Operator note: child class: Generators
Operator note: child name: Hayes - Generation
Operator note: source field: Generators.generationConnectedCapacity
Operator note: voltage kv: 11

Injection · Generation (any) · Contracted

0.99 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0.99 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099_Generation · payload sha256 d4e543c7f38e…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: aggregate: true
Operator note: child class: Generators
Operator note: child name: Hayes - Generation
Operator note: source field: Generators.generationContractedCapacity
Operator note: voltage kv: 11

Injection · Generation (any) · Contracted

0 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 MVA under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: connection_offers_accepted
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: generationConnectionOffersAcceptedCapacity

Injection · Generation (any) · Contracted

Published in count; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 count under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: connection_offers_accepted_count
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: generationConnectionOffersAcceptedCount

Injection · Generation (any) · Requested

0 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 MVA under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: budget_estimates_provided
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: generationBudgetEstimatesProvidedCapacity

Injection · Generation (any) · Requested

Published in count; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 count under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: budget_estimates_provided_count
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: generationBudgetEstimatesProvidedCount

Injection · Generation (any) · Requested

0 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 MVA under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: connection_offers_made
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: generationConnectionOffersMadeCapacity

Injection · Generation (any) · Requested

Published in count; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 count under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: connection_offers_made_count
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: generationConnectionOffersMadeCount

Injection · Generation (any) · Total

60 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 60 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Firm
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099 · payload sha256 96ee867d1813…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: source field: generationFirmCapacity

Injection · Generation (any) · Total

60 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 60 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot) · variant: reverse_power_flow
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099 · payload sha256 96ee867d1813…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: source field: reversePowerFlowTotalCapacity

Injection · Other storage · Connected

0 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099_Storage · payload sha256 f708a27b6904…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: aggregate: true
Operator note: child class: Storage
Operator note: child name: Hayes - Storage
Operator note: source field: Storage.generationConnectedCapacity
Operator note: voltage kv: 11

Injection · Other storage · Contracted

0 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099_Storage · payload sha256 f708a27b6904…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: aggregate: true
Operator note: child class: Storage
Operator note: child name: Hayes - Storage
Operator note: source field: Storage.generationContractedCapacity
Operator note: voltage kv: 11

Offtake · Load (any) · Available

0 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099 · payload sha256 96ee867d1813…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: limiting factor: Upstream Thermal Capacity
Operator note: rag: Red
Operator note: rag colour: red
Operator note: source field: demandAvailableCapacity

Offtake · Load (any) · Connected

33.58 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 33.58 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099_Demand · payload sha256 7ad9c298f7c7…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: aggregate: true
Operator note: child class: Demands
Operator note: child name: Hayes - Demand
Operator note: source field: Demands.demandConnectedCapacity
Operator note: voltage kv: 11

Offtake · Load (any) · Contracted

22.79 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 22.79 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099_Demand · payload sha256 7ad9c298f7c7…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: aggregate: true
Operator note: child class: Demands
Operator note: child name: Hayes - Demand
Operator note: source field: Demands.demandContractedCapacity
Operator note: voltage kv: 11

Offtake · Load (any) · Contracted

10.5 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 10.5 MVA under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: connection_offers_accepted
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: loadConnectionOffersAcceptedCapacity

Offtake · Load (any) · Contracted

Published in count; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 2 count under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: connection_offers_accepted_count
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: loadConnectionOffersAcceptedCount

Offtake · Load (any) · Requested

4 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 4 MVA under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: budget_estimates_provided
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: loadBudgetEstimatesProvidedCapacity

Offtake · Load (any) · Requested

Published in count; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 1 count under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: budget_estimates_provided_count
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: loadBudgetEstimatesProvidedCount

Offtake · Load (any) · Requested

7.2 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 7.2 MVA under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: connection_offers_made
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: loadConnectionOffersMadeCapacity

Offtake · Load (any) · Requested

Published in count; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 2 count under methodology gb_ssen_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: connection_offers_made_count
Methodology: gb_ssen_ltds_heatmap_activity_2026SSEN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ssen_connection_activityNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099/PastConnectionActivity/11kV · payload sha256 bec52f8bf3e5…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: periodEnd: 2026-03-31T00:00:00.000+00:00
Operator note: periodStart: 2025-04-01T00:00:00.000+00:00
Operator note: source field: loadConnectionOffersMadeCount

Offtake · Load (any) · Total

60 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 60 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Firm
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099 · payload sha256 96ee867d1813…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: source field: demandFirmCapacity

Offtake · Other storage · Connected

0 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099_Storage · payload sha256 f708a27b6904…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: aggregate: true
Operator note: child class: Storage
Operator note: child name: Hayes - Storage
Operator note: source field: Storage.demandConnectedCapacity
Operator note: voltage kv: 11

Offtake · Other storage · Contracted

0 MVA

Published in MVA; no MW figure is derived from it.

Granted

The operator's latest published dataset reports 0 MVA under methodology gb_ssen_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot)
Methodology: gb_ssen_ltds_heatmap_2026SSEN LTDS Capacity Heatmapbasis operator calculated · network state unknown · comparability class gb_ssen_ltds_heatmapNot additive across assets. The method accounts for reserved: not stated · allocated: not stated · pre-reserved: not stated · pending requests: not stated
Operator’s date: 31 May 2026
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ssen_ltds_heatmaprecord _dfd96cec-0eac-428f-8c1d-3bb5e06ab099_Storage · payload sha256 f708a27b6904…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: SSEN Distribution; SEPD and SHEPD Long Term Development Statement Capacity Heatmap; https://data.ssen.co.uk/@ssen-distribution/sepd_long_term_development_statement, https://data.ssen.co.uk/@ssen-distribution/shepd_long_term_development_statement; CC BY 4.0 (last updated 2026-05-31)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: aggregate: true
Operator note: child class: Storage
Operator note: child name: Hayes - Storage
Operator note: source field: Storage.demandContractedCapacity
Operator note: voltage kv: 11

History

Served series only

Offtake · Load (any) · Available

current 0 MVA

26 Sep 2026range 0–0 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	0 MVA

Time axis: when we observed each value, not the operator’s effective date.

Injection · Generation (any) · Available

current 69.06 MVA

26 Sep 2026range 69.06–69.06 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	69.06 MVA

Time axis: when we observed each value, not the operator’s effective date.

Injection · Generation (any) · Available

current 69.06 MVA

26 Sep 2026range 69.06–69.06 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	69.06 MVA

Time axis: when we observed each value, not the operator’s effective date.

Offtake · Load (any) · Total

current 60 MVA

26 Sep 2026range 60–60 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	60 MVA

Time axis: when we observed each value, not the operator’s effective date.

Injection · Generation (any) · Total

current 60 MVA

26 Sep 2026range 60–60 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	60 MVA

Time axis: when we observed each value, not the operator’s effective date.

Injection · Generation (any) · Total

current 60 MVA

26 Sep 2026range 60–60 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	60 MVA

Time axis: when we observed each value, not the operator’s effective date.

Offtake · Load (any) · Connected

current 33.58 MVA

26 Sep 2026range 33.58–33.58 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	33.58 MVA

Time axis: when we observed each value, not the operator’s effective date.

Offtake · Load (any) · Contracted

current 22.79 MVA

26 Sep 2026range 22.79–22.79 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	22.79 MVA

Time axis: when we observed each value, not the operator’s effective date.

Injection · Generation (any) · Connected

current 0 MVA

26 Sep 2026range 0–0 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	0 MVA

Time axis: when we observed each value, not the operator’s effective date.

Injection · Generation (any) · Contracted

current 0.99 MVA

26 Sep 2026range 0.99–0.99 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	0.99 MVA

Time axis: when we observed each value, not the operator’s effective date.

Offtake · Other storage · Connected

current 0 MVA

26 Sep 2026range 0–0 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	0 MVA

Time axis: when we observed each value, not the operator’s effective date.

Offtake · Other storage · Contracted

current 0 MVA

26 Sep 2026range 0–0 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	0 MVA

Time axis: when we observed each value, not the operator’s effective date.

The first 12 of 26 served series with a history. The history route returns every one of them.

Through the API

$ curl "https://api.gridcapacityapi.com/v1/substations/sub_06gdq72f51tsb354dtvp8jesmg/capacity" \  -H "Authorization: Bearer gc_live_..."