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Substation / 6.6 kV / primary

WATERHEAD

SP Electricity North West / United Kingdom

Latest published values

6 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)Available29.352325 MWConditionalNow (snapshot)variant: inverter_based14 Aug 2026
InjectionGeneration (any)Available13.336498 MWConditionalNow (snapshot)variant: synchronous_lv14 Aug 2026
InjectionGeneration (any)Available9.730675 MWConditionalNow (snapshot)variant: synchronous_hv14 Aug 2026
OfftakeLoad (any)Available11.585927 MWConditionalNow (snapshot)14 Aug 2026
OfftakeLoad (any)Available11.585927 MWFirmNow (snapshot)14 Aug 2026
BidirectionalBatteryAvailable11.585927 MWConditionalNow (snapshot)14 Aug 2026

SP Electricity North West, Heatmap Tool (CC BY 4.0) (last updated 2026-08-14)

What each value means

Methodology, both clocks, provenance and rights

Injection · Generation (any) · Available

29.352325 MW

Granted

The operator's latest published dataset reports 29.352325105 MW under methodology gb_enwl_heatmap_tool_2026.

Firmness
Conditional
Horizon
Now (snapshot) · variant: inverter_based
Methodology
gb_enwl_heatmap_tool_2026ENWL Heatmap Tool: primary and BSP headroombasis operator calculated · network state unknown · comparability class gb_enwl_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
14 Aug 2026
Retrieved / confirmed
2026-09-26 02:45 UTClast confirmed unchanged 2026-10-02 08:21 UTC
Source health
Healthy
Provenance
gb_enwl_heatmap_toolrecord primary:WATERHEAD · payload sha256 a220622a0710…Operator’s publication (opens the operator’s site)
Licence
CC BY 4.0Attribution: SP Electricity North West, Heatmap Tool (CC BY 4.0) (last updated 2026-08-14)
Decision context
Not binding · indicative · a formal connection study is required
Operator note: source field
Generation Headroom N-0 -(MW) / Inverter Based

Injection · Generation (any) · Available

13.336498 MW

Granted

The operator's latest published dataset reports 13.336497806 MW under methodology gb_enwl_heatmap_tool_2026.

Firmness
Conditional
Horizon
Now (snapshot) · variant: synchronous_lv
Methodology
gb_enwl_heatmap_tool_2026ENWL Heatmap Tool: primary and BSP headroombasis operator calculated · network state unknown · comparability class gb_enwl_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
14 Aug 2026
Retrieved / confirmed
2026-09-26 02:45 UTClast confirmed unchanged 2026-10-02 08:21 UTC
Source health
Healthy
Provenance
gb_enwl_heatmap_toolrecord primary:WATERHEAD · payload sha256 a220622a0710…Operator’s publication (opens the operator’s site)
Licence
CC BY 4.0Attribution: SP Electricity North West, Heatmap Tool (CC BY 4.0) (last updated 2026-08-14)
Decision context
Not binding · indicative · a formal connection study is required
Operator note: source field
Generation Headroom N-0 -(MW) / Synchronous - LV

Injection · Generation (any) · Available

9.730675 MW

Granted

The operator's latest published dataset reports 9.730675204 MW under methodology gb_enwl_heatmap_tool_2026.

Firmness
Conditional
Horizon
Now (snapshot) · variant: synchronous_hv
Methodology
gb_enwl_heatmap_tool_2026ENWL Heatmap Tool: primary and BSP headroombasis operator calculated · network state unknown · comparability class gb_enwl_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
14 Aug 2026
Retrieved / confirmed
2026-09-26 02:45 UTClast confirmed unchanged 2026-10-02 08:21 UTC
Source health
Healthy
Provenance
gb_enwl_heatmap_toolrecord primary:WATERHEAD · payload sha256 a220622a0710…Operator’s publication (opens the operator’s site)
Licence
CC BY 4.0Attribution: SP Electricity North West, Heatmap Tool (CC BY 4.0) (last updated 2026-08-14)
Decision context
Not binding · indicative · a formal connection study is required
Operator note: source field
Generation Headroom N-0 -(MW) / Synchronous - HV

Offtake · Load (any) · Available

11.585927 MW

Granted

The operator's latest published dataset reports 11.585927114 MW under methodology gb_enwl_heatmap_tool_2026.

Firmness
Conditional
Horizon
Now (snapshot)
Methodology
gb_enwl_heatmap_tool_2026ENWL Heatmap Tool: primary and BSP headroombasis operator calculated · network state unknown · comparability class gb_enwl_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
14 Aug 2026
Retrieved / confirmed
2026-09-26 02:45 UTClast confirmed unchanged 2026-10-02 08:21 UTC
Source health
Healthy
Provenance
gb_enwl_heatmap_toolrecord primary:WATERHEAD · payload sha256 a220622a0710…Operator’s publication (opens the operator’s site)
Licence
CC BY 4.0Attribution: SP Electricity North West, Heatmap Tool (CC BY 4.0) (last updated 2026-08-14)
Decision context
Not binding · indicative · a formal connection study is required
Operator note: source field
Demand Headroom (MW) / N-0

Offtake · Load (any) · Available

11.585927 MW

Granted

The operator's latest published dataset reports 11.585927114 MW under methodology gb_enwl_heatmap_tool_2026.

Firmness
Firm
Horizon
Now (snapshot)
Methodology
gb_enwl_heatmap_tool_2026ENWL Heatmap Tool: primary and BSP headroombasis operator calculated · network state unknown · comparability class gb_enwl_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
14 Aug 2026
Retrieved / confirmed
2026-09-26 02:45 UTClast confirmed unchanged 2026-10-02 08:21 UTC
Source health
Healthy
Provenance
gb_enwl_heatmap_toolrecord primary:WATERHEAD · payload sha256 a220622a0710…Operator’s publication (opens the operator’s site)
Licence
CC BY 4.0Attribution: SP Electricity North West, Heatmap Tool (CC BY 4.0) (last updated 2026-08-14)
Decision context
Not binding · indicative · a formal connection study is required
Operator note: source field
Demand Headroom (MW) / Firm

Bidirectional · Battery · Available

11.585927 MW

Granted

The operator's latest published dataset reports 11.585927114 MW under methodology gb_enwl_heatmap_tool_2026.

Firmness
Conditional
Horizon
Now (snapshot)
Methodology
gb_enwl_heatmap_tool_2026ENWL Heatmap Tool: primary and BSP headroombasis operator calculated · network state unknown · comparability class gb_enwl_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
14 Aug 2026
Retrieved / confirmed
2026-09-26 02:45 UTClast confirmed unchanged 2026-10-02 08:21 UTC
Source health
Healthy
Provenance
gb_enwl_heatmap_toolrecord primary:WATERHEAD · payload sha256 a220622a0710…Operator’s publication (opens the operator’s site)
Licence
CC BY 4.0Attribution: SP Electricity North West, Heatmap Tool (CC BY 4.0) (last updated 2026-08-14)
Decision context
Not binding · indicative · a formal connection study is required
Operator note: source field
Battery Storage Headroom N-0 -(MW)

History

Served series only

Offtake · Load (any) · Available

current 11.585927 MW

26 Sep 2026: 11.585927 MW
26 Sep 2026range 11.585927 to 11.585927 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current11.585927 MW

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

Offtake · Load (any) · Available

current 11.585927 MW

26 Sep 2026: 11.585927 MW
26 Sep 2026range 11.585927 to 11.585927 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current11.585927 MW

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

Injection · Generation (any) · Available

current 29.352325 MW

26 Sep 2026: 29.352325 MW
26 Sep 2026range 29.352325 to 29.352325 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current29.352325 MW

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

Injection · Generation (any) · Available

current 13.336498 MW

26 Sep 2026: 13.336498 MW
26 Sep 2026range 13.336498 to 13.336498 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current13.336498 MW

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

Injection · Generation (any) · Available

current 9.730675 MW

26 Sep 2026: 9.730675 MW
26 Sep 2026range 9.730675 to 9.730675 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current9.730675 MW

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

Bidirectional · Battery · Available

current 11.585927 MW

26 Sep 2026: 11.585927 MW
26 Sep 2026range 11.585927 to 11.585927 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current11.585927 MW

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

Through the API

curl "https://api.gridcapacityapi.com/v1/substations/sub_06gdq6jnjdszf095gcjy1ywpm4/capacity" \  -H "Authorization: Bearer gc_live_..."
WATERHEAD 6.6 kV substation: grid capacity (SP Electricity North West) · GridCapacity API