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Substation · 11 kV · primary

Romford Primary 11kV

UK Power Networks · United Kingdom

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
DirectionTechnologyMeasureValueFirmnessHorizonSource date
InjectionGeneration (any)Available28.7 MVAFirmNow (snapshot)1 Mar 2025
InjectionGeneration (any)Available22 MVAUnknownNow (snapshot)variant: reverse_power_flow1 Mar 2025
InjectionGeneration (any)Total30.6 MVAFirmNow (snapshot)1 Mar 2025
InjectionGeneration (any)Total22 MVAFirmNow (snapshot)variant: reverse_power_flow1 Mar 2025
OfftakeLoad (any)Available11.3 MVAFirmNow (snapshot)1 Mar 2025
OfftakeLoad (any)Requested2.8 MVAUnknownpast_connection_activityvariant: budget_estimates_provided1 Mar 2025
OfftakeLoad (any)Requested2Unknownpast_connection_activityvariant: budget_estimates_provided_count1 Mar 2025
OfftakeLoad (any)Requested14.7 MVAUnknownpast_connection_activityvariant: connection_offers_made1 Mar 2025
OfftakeLoad (any)Requested6Unknownpast_connection_activityvariant: connection_offers_made_count1 Mar 2025
OfftakeLoad (any)Total44.1 MVAFirmNow (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

28.7 MVA

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

Granted

The operator's latest published dataset reports 28.7 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 51652f6e-5690-5e37-ae67-52957f0628c2 · payload sha256 108d8f7a712d…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 MVA

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

Granted

The operator's latest published dataset reports 22 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 51652f6e-5690-5e37-ae67-52957f0628c2 · payload sha256 108d8f7a712d…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

30.6 MVA

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

Granted

The operator's latest published dataset reports 30.6 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 51652f6e-5690-5e37-ae67-52957f0628c2 · payload sha256 108d8f7a712d…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 MVA

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

Granted

The operator's latest published dataset reports 22 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 51652f6e-5690-5e37-ae67-52957f0628c2 · payload sha256 108d8f7a712d…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

11.3 MVA

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

Granted

The operator's latest published dataset reports 11.3 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 51652f6e-5690-5e37-ae67-52957f0628c2 · payload sha256 108d8f7a712d…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) · Requested

2.8 MVA

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

Granted

The operator's latest published dataset reports 2.8 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 51652f6e-5690-5e37-ae67-52957f0628c2/PastConnectionActivity/11kV · payload sha256 f60612e7dc26…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

2

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: 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 51652f6e-5690-5e37-ae67-52957f0628c2/PastConnectionActivity/11kV · payload sha256 f60612e7dc26…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) · Requested

14.7 MVA

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

Granted

The operator's latest published dataset reports 14.7 MVA under methodology gb_ukpn_ltds_heatmap_activity_2026.

Firmness
Unknown
Horizon
past_connection_activity · variant: connection_offers_made
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 51652f6e-5690-5e37-ae67-52957f0628c2/PastConnectionActivity/11kV · payload sha256 f60612e7dc26…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
loadConnectionOffersMadeCapacity

Offtake · Load (any) · Requested

6

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

Granted

The operator's latest published dataset reports 6 count under methodology gb_ukpn_ltds_heatmap_activity_2026.

Firmness
Unknown
Horizon
past_connection_activity · variant: connection_offers_made_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 51652f6e-5690-5e37-ae67-52957f0628c2/PastConnectionActivity/11kV · payload sha256 f60612e7dc26…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
loadConnectionOffersMadeCount

Offtake · Load (any) · Total

44.1 MVA

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

Granted

The operator's latest published dataset reports 44.1 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 51652f6e-5690-5e37-ae67-52957f0628c2 · payload sha256 108d8f7a712d…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 11.3 MVA

26 Sep 2026: 11.3 MVA
26 Sep 2026range 11.3–11.3 MVA26 Sep 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current11.3 MVA

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

Injection · Generation (any) · Available

current 28.7 MVA

26 Sep 2026: 28.7 MVA
26 Sep 2026range 28.7–28.7 MVA26 Sep 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current28.7 MVA

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

Injection · Generation (any) · Available

current 22 MVA

26 Sep 2026: 22 MVA
26 Sep 2026range 22–22 MVA26 Sep 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current22 MVA

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

Offtake · Load (any) · Total

current 44.1 MVA

26 Sep 2026: 44.1 MVA
26 Sep 2026range 44.1–44.1 MVA26 Sep 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current44.1 MVA

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

Injection · Generation (any) · Total

current 30.6 MVA

26 Sep 2026: 30.6 MVA
26 Sep 2026range 30.6–30.6 MVA26 Sep 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current30.6 MVA

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

Injection · Generation (any) · Total

current 22 MVA

26 Sep 2026: 22 MVA
26 Sep 2026range 22–22 MVA26 Sep 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current22 MVA

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

Offtake · Load (any) · Requested · past_connection_activity

current 2.8 MVA

26 Sep 2026: 2.8 MVA
26 Sep 2026range 2.8–2.8 MVA26 Sep 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current2.8 MVA

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

Offtake · Load (any) · Requested · past_connection_activity

current 2

26 Sep 2026: 2
26 Sep 2026range 2–226 Sep 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current2

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

Offtake · Load (any) · Requested · past_connection_activity

current 14.7 MVA

26 Sep 2026: 14.7 MVA
26 Sep 2026range 14.7–14.7 MVA26 Sep 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current14.7 MVA

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

Offtake · Load (any) · Requested · past_connection_activity

current 6

26 Sep 2026: 6
26 Sep 2026range 6–626 Sep 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current6

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

Through the API

curl "https://api.gridcapacityapi.com/v1/substations/sub_06gdq75qqntah1g4cfak11zqd4/capacity" \  -H "Authorization: Bearer gc_live_..."
Romford Primary 11kV substation: grid capacity (UK Power Networks) · GridCapacity API