Substation · 132 kV · bsp

Chalvey

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	93.11 MVA	Unknown	Now (snapshot)	31 May 2026
Injection	Generation (any)	Available	93.11 MVA	Unknown	Now (snapshot)variant: reverse_power_flow	31 May 2026
Injection	Generation (any)	Connected	6.84 MVA	Unknown	Now (snapshot)	31 May 2026
Injection	Generation (any)	Contracted	4.17 MVA	Unknown	Now (snapshot)	31 May 2026
Injection	Generation (any)	Contracted	4.17 MVA	Unknown	past_connection_activityvariant: connection_offers_accepted	31 May 2026
Injection	Generation (any)	Contracted	1	Unknown	past_connection_activityvariant: connection_offers_accepted_count	31 May 2026
Injection	Generation (any)	Requested	2.11 MVA	Unknown	past_connection_activityvariant: budget_estimates_provided	31 May 2026
Injection	Generation (any)	Requested	1	Unknown	past_connection_activityvariant: budget_estimates_provided_count	31 May 2026
Injection	Generation (any)	Requested	6.37 MVA	Unknown	past_connection_activityvariant: connection_offers_made	31 May 2026
Injection	Generation (any)	Requested	3	Unknown	past_connection_activityvariant: connection_offers_made_count	31 May 2026
Injection	Generation (any)	Total	90 MVA	Firm	Now (snapshot)	31 May 2026
Injection	Generation (any)	Total	90 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	53.54 MVA	Unknown	Now (snapshot)	31 May 2026
Offtake	Load (any)	Contracted	45.19 MVA	Unknown	Now (snapshot)	31 May 2026
Offtake	Load (any)	Contracted	14.05 MVA	Unknown	past_connection_activityvariant: connection_offers_accepted	31 May 2026
Offtake	Load (any)	Contracted	5	Unknown	past_connection_activityvariant: connection_offers_accepted_count	31 May 2026
Offtake	Load (any)	Requested	5.05 MVA	Unknown	past_connection_activityvariant: budget_estimates_provided	31 May 2026
Offtake	Load (any)	Requested	3	Unknown	past_connection_activityvariant: budget_estimates_provided_count	31 May 2026
Offtake	Load (any)	Requested	7.56 MVA	Unknown	past_connection_activityvariant: connection_offers_made	31 May 2026
Offtake	Load (any)	Requested	5	Unknown	past_connection_activityvariant: connection_offers_made_count	31 May 2026
Offtake	Load (any)	Total	114.75 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

93.11 MVA

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

Granted

The operator's latest published dataset reports 93.11 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03 · payload sha256 a7e77c7d41bd…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 Fault Level Constraint
Operator note: rag: Amber
Operator note: rag colour: amber
Operator note: source field: generationAvailableCapacity

Injection · Generation (any) · Available

93.11 MVA

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

Granted

The operator's latest published dataset reports 93.11 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03 · payload sha256 a7e77c7d41bd…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

6.84 MVA

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

Granted

The operator's latest published dataset reports 6.84 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03_Generation · payload sha256 bc2e43d2ee16…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: Chalvey - Generation
Operator note: source field: Generators.generationConnectedCapacity
Operator note: voltage kv: 33

Injection · Generation (any) · Contracted

4.17 MVA

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

Granted

The operator's latest published dataset reports 4.17 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03_Generation · payload sha256 bc2e43d2ee16…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: Chalvey - Generation
Operator note: source field: Generators.generationContractedCapacity
Operator note: voltage kv: 33

Injection · Generation (any) · Contracted

4.17 MVA

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

Granted

The operator's latest published dataset reports 4.17 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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 1 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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

2.11 MVA

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

Granted

The operator's latest published dataset reports 2.11 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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

6.37 MVA

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

Granted

The operator's latest published dataset reports 6.37 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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 3 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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

90 MVA

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

Granted

The operator's latest published dataset reports 90 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03 · payload sha256 a7e77c7d41bd…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

90 MVA

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

Granted

The operator's latest published dataset reports 90 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03 · payload sha256 a7e77c7d41bd…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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03_Storage · payload sha256 8c1b4e15027b…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: Chalvey - Storage
Operator note: source field: Storage.generationConnectedCapacity
Operator note: voltage kv: 33

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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03_Storage · payload sha256 8c1b4e15027b…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: Chalvey - Storage
Operator note: source field: Storage.generationContractedCapacity
Operator note: voltage kv: 33

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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03 · payload sha256 a7e77c7d41bd…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

53.54 MVA

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

Granted

The operator's latest published dataset reports 53.54 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03_Demand · payload sha256 345d4c6eb279…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: Chalvey - Demand
Operator note: source field: Demands.demandConnectedCapacity
Operator note: voltage kv: 33

Offtake · Load (any) · Contracted

45.19 MVA

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

Granted

The operator's latest published dataset reports 45.19 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03_Demand · payload sha256 345d4c6eb279…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: Chalvey - Demand
Operator note: source field: Demands.demandContractedCapacity
Operator note: voltage kv: 33

Offtake · Load (any) · Contracted

14.05 MVA

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

Granted

The operator's latest published dataset reports 14.05 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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 5 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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

5.05 MVA

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

Granted

The operator's latest published dataset reports 5.05 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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 3 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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

7.56 MVA

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

Granted

The operator's latest published dataset reports 7.56 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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 5 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03/PastConnectionActivity/33kV · payload sha256 f7d8fc04c015…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: 33
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

114.75 MVA

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

Granted

The operator's latest published dataset reports 114.75 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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03 · payload sha256 a7e77c7d41bd…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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03_Storage · payload sha256 8c1b4e15027b…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: Chalvey - Storage
Operator note: source field: Storage.demandConnectedCapacity
Operator note: voltage kv: 33

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 _fa04479b-88a1-4f0e-bfe3-ad6542a36a03_Storage · payload sha256 8c1b4e15027b…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: Chalvey - Storage
Operator note: source field: Storage.demandContractedCapacity
Operator note: voltage kv: 33

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 93.11 MVA

26 Sep 2026range 93.11–93.11 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	93.11 MVA

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

Injection · Generation (any) · Available

current 93.11 MVA

26 Sep 2026range 93.11–93.11 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	93.11 MVA

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

Offtake · Load (any) · Total

current 114.75 MVA

26 Sep 2026range 114.75–114.75 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	114.75 MVA

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

Injection · Generation (any) · Total

current 90 MVA

26 Sep 2026range 90–90 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	90 MVA

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

Injection · Generation (any) · Total

current 90 MVA

26 Sep 2026range 90–90 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	90 MVA

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

Offtake · Load (any) · Connected

current 53.54 MVA

26 Sep 2026range 53.54–53.54 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	53.54 MVA

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

Offtake · Load (any) · Contracted

current 45.19 MVA

26 Sep 2026range 45.19–45.19 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	45.19 MVA

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

Injection · Generation (any) · Connected

current 6.84 MVA

26 Sep 2026range 6.84–6.84 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	6.84 MVA

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

Injection · Generation (any) · Contracted

current 4.17 MVA

26 Sep 2026range 4.17–4.17 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	4.17 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_06gdq72dbdt0h24k1xz19sc508/capacity" \  -H "Authorization: Bearer gc_live_..."