Substation · 11 kV · primary

Rayleigh Local Primary 11kV

Latest published values

10 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	21.7 MVA	Firm	Now (snapshot)	1 Mar 2025
Injection	Generation (any)	Available	22.8 MVA	Unknown	Now (snapshot)variant: reverse_power_flow	1 Mar 2025
Injection	Generation (any)	Total	23.3 MVA	Firm	Now (snapshot)	1 Mar 2025
Injection	Generation (any)	Total	22.8 MVA	Firm	Now (snapshot)variant: reverse_power_flow	1 Mar 2025
Offtake	Load (any)	Available	8.4 MVA	Firm	Now (snapshot)	1 Mar 2025
Offtake	Load (any)	Contracted	7.3 MVA	Unknown	past_connection_activityvariant: connection_offers_accepted	1 Mar 2025
Offtake	Load (any)	Contracted	2	Unknown	past_connection_activityvariant: connection_offers_accepted_count	1 Mar 2025
Offtake	Load (any)	Requested	5.3 MVA	Unknown	past_connection_activityvariant: budget_estimates_provided	1 Mar 2025
Offtake	Load (any)	Requested	1	Unknown	past_connection_activityvariant: budget_estimates_provided_count	1 Mar 2025
Offtake	Load (any)	Total	22.8 MVA	Firm	Now (snapshot)	1 Mar 2025

UK Power Networks, Long Term Development Statement (LTDS) Capacity Heatmap, https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-capacity-heatmap/ (last updated 2025-03-01)

What each value means

Methodology, both clocks, provenance and rights

Injection · Generation (any) · Available

21.7 MVA

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

Granted

The operator's latest published dataset reports 21.7 MVA under methodology gb_ukpn_ltds_heatmap_2026.

Firmness: Firm
Horizon: Now (snapshot)
Methodology: gb_ukpn_ltds_heatmap_2026UKPN LTDS Capacity Heatmap: headroom from the Network Scenario Headroom Reportbasis operator calculated · network state n minus 1 · comparability class gb_ukpn_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: 1 Mar 2025
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ukpn_ltds_heatmaprecord 2659753c-0046-5687-934f-856f6e2e645e · payload sha256 1ad85ed5908c…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: UK Power Networks, Long Term Development Statement (LTDS) Capacity Heatmap, https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-capacity-heatmap/ (last updated 2025-03-01)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: limiting factor: Thermal
Operator note: rag: GREEN
Operator note: rag colour: green
Operator note: source field: generationAvailableCapacity

Injection · Generation (any) · Available

22.8 MVA

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

Granted

The operator's latest published dataset reports 22.8 MVA under methodology gb_ukpn_ltds_heatmap_2026.

Firmness: Unknown
Horizon: Now (snapshot) · variant: reverse_power_flow
Methodology: gb_ukpn_ltds_heatmap_2026UKPN LTDS Capacity Heatmap: headroom from the Network Scenario Headroom Reportbasis operator calculated · network state n minus 1 · comparability class gb_ukpn_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: 1 Mar 2025
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ukpn_ltds_heatmaprecord 2659753c-0046-5687-934f-856f6e2e645e · payload sha256 1ad85ed5908c…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: UK Power Networks, Long Term Development Statement (LTDS) Capacity Heatmap, https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-capacity-heatmap/ (last updated 2025-03-01)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: equals published total: reversePowerFlowTotalCapacity
Operator note: source field: reversePowerFlowAvailableCapacity

Injection · Generation (any) · Total

23.3 MVA

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

Granted

The operator's latest published dataset reports 23.3 MVA under methodology gb_ukpn_ltds_heatmap_2026.

Firmness: Firm
Horizon: Now (snapshot)
Methodology: gb_ukpn_ltds_heatmap_2026UKPN LTDS Capacity Heatmap: headroom from the Network Scenario Headroom Reportbasis operator calculated · network state n minus 1 · comparability class gb_ukpn_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: 1 Mar 2025
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ukpn_ltds_heatmaprecord 2659753c-0046-5687-934f-856f6e2e645e · payload sha256 1ad85ed5908c…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: UK Power Networks, Long Term Development Statement (LTDS) Capacity Heatmap, https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-capacity-heatmap/ (last updated 2025-03-01)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: source field: generationFirmCapacity

Injection · Generation (any) · Total

22.8 MVA

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

Granted

The operator's latest published dataset reports 22.8 MVA under methodology gb_ukpn_ltds_heatmap_2026.

Firmness: Firm
Horizon: Now (snapshot) · variant: reverse_power_flow
Methodology: gb_ukpn_ltds_heatmap_2026UKPN LTDS Capacity Heatmap: headroom from the Network Scenario Headroom Reportbasis operator calculated · network state n minus 1 · comparability class gb_ukpn_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: 1 Mar 2025
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ukpn_ltds_heatmaprecord 2659753c-0046-5687-934f-856f6e2e645e · payload sha256 1ad85ed5908c…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: UK Power Networks, Long Term Development Statement (LTDS) Capacity Heatmap, https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-capacity-heatmap/ (last updated 2025-03-01)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: source field: reversePowerFlowTotalCapacity

Offtake · Load (any) · Available

8.4 MVA

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

Granted

The operator's latest published dataset reports 8.4 MVA under methodology gb_ukpn_ltds_heatmap_2026.

Firmness: Firm
Horizon: Now (snapshot)
Methodology: gb_ukpn_ltds_heatmap_2026UKPN LTDS Capacity Heatmap: headroom from the Network Scenario Headroom Reportbasis operator calculated · network state n minus 1 · comparability class gb_ukpn_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: 1 Mar 2025
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ukpn_ltds_heatmaprecord 2659753c-0046-5687-934f-856f6e2e645e · payload sha256 1ad85ed5908c…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: UK Power Networks, Long Term Development Statement (LTDS) Capacity Heatmap, https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-capacity-heatmap/ (last updated 2025-03-01)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: limiting factor: Thermal
Operator note: rag: GREEN
Operator note: rag colour: green
Operator note: source field: demandAvailableCapacity

Offtake · Load (any) · Contracted

7.3 MVA

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

Granted

The operator's latest published dataset reports 7.3 MVA under methodology gb_ukpn_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: connection_offers_accepted
Methodology: gb_ukpn_ltds_heatmap_activity_2026UKPN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ukpn_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: 1 Mar 2025
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ukpn_ltds_heatmaprecord 2659753c-0046-5687-934f-856f6e2e645e/PastConnectionActivity/11kV · payload sha256 13771c0cf4f0…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: UK Power Networks, Long Term Development Statement (LTDS) Capacity Heatmap, https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-capacity-heatmap/ (last updated 2025-03-01)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
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_ukpn_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: connection_offers_accepted_count
Methodology: gb_ukpn_ltds_heatmap_activity_2026UKPN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ukpn_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: 1 Mar 2025
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ukpn_ltds_heatmaprecord 2659753c-0046-5687-934f-856f6e2e645e/PastConnectionActivity/11kV · payload sha256 13771c0cf4f0…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: UK Power Networks, Long Term Development Statement (LTDS) Capacity Heatmap, https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-capacity-heatmap/ (last updated 2025-03-01)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: source field: loadConnectionOffersAcceptedCount

Offtake · Load (any) · Requested

5.3 MVA

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

Granted

The operator's latest published dataset reports 5.3 MVA under methodology gb_ukpn_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: budget_estimates_provided
Methodology: gb_ukpn_ltds_heatmap_activity_2026UKPN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ukpn_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: 1 Mar 2025
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ukpn_ltds_heatmaprecord 2659753c-0046-5687-934f-856f6e2e645e/PastConnectionActivity/11kV · payload sha256 13771c0cf4f0…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: UK Power Networks, Long Term Development Statement (LTDS) Capacity Heatmap, https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-capacity-heatmap/ (last updated 2025-03-01)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
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_ukpn_ltds_heatmap_activity_2026.

Firmness: Unknown
Horizon: past_connection_activity · variant: budget_estimates_provided_count
Methodology: gb_ukpn_ltds_heatmap_activity_2026UKPN past connection activity (LTDS Capacity Heatmap)basis operator published · network state unknown · comparability class gb_ukpn_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: 1 Mar 2025
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ukpn_ltds_heatmaprecord 2659753c-0046-5687-934f-856f6e2e645e/PastConnectionActivity/11kV · payload sha256 13771c0cf4f0…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: UK Power Networks, Long Term Development Statement (LTDS) Capacity Heatmap, https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-capacity-heatmap/ (last updated 2025-03-01)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: connection voltage kv: 11
Operator note: source field: loadBudgetEstimatesProvidedCount

Offtake · Load (any) · Total

22.8 MVA

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

Granted

The operator's latest published dataset reports 22.8 MVA under methodology gb_ukpn_ltds_heatmap_2026.

Firmness: Firm
Horizon: Now (snapshot)
Methodology: gb_ukpn_ltds_heatmap_2026UKPN LTDS Capacity Heatmap: headroom from the Network Scenario Headroom Reportbasis operator calculated · network state n minus 1 · comparability class gb_ukpn_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: 1 Mar 2025
Retrieved / confirmed: 2026-09-26 02:47 UTClast confirmed unchanged 2026-09-26 02:47 UTC
Source health: Healthy
Provenance: gb_ukpn_ltds_heatmaprecord 2659753c-0046-5687-934f-856f6e2e645e · payload sha256 1ad85ed5908c…Operator’s publication (opens the operator’s site)
Licence: CC BY 4.0Attribution: UK Power Networks, Long Term Development Statement (LTDS) Capacity Heatmap, https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-capacity-heatmap/ (last updated 2025-03-01)
Decision context: Not binding · indicative · a formal connection study is required
Operator note: source field: demandFirmCapacity

History

Served series only

Offtake · Load (any) · Available

current 8.4 MVA

26 Sep 2026range 8.4–8.4 MVA26 Sep 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	8.4 MVA