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Substation / 6.6 kV / primary

GREAT HARWOOD

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)Available17.7841 MWConditionalNow (snapshot)variant: inverter_based14 Aug 2026
InjectionGeneration (any)Available3.440925 MWConditionalNow (snapshot)variant: synchronous_lv14 Aug 2026
InjectionGeneration (any)Available2.510594 MWConditionalNow (snapshot)variant: synchronous_hv14 Aug 2026
OfftakeLoad (any)Available18.549913 MWConditionalNow (snapshot)14 Aug 2026
OfftakeLoad (any)Available10.429913 MWFirmNow (snapshot)14 Aug 2026
BidirectionalBatteryAvailable17.7841 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

17.7841 MW

Granted

The operator's latest published dataset reports 17.784100118 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:GREAT HARWOOD · payload sha256 3e9a523f95ce…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

3.440925 MW

Granted

The operator's latest published dataset reports 3.440925409 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:GREAT HARWOOD · payload sha256 3e9a523f95ce…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

2.510594 MW

Granted

The operator's latest published dataset reports 2.510593714 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:GREAT HARWOOD · payload sha256 3e9a523f95ce…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

18.549913 MW

Granted

The operator's latest published dataset reports 18.549913168 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:GREAT HARWOOD · payload sha256 3e9a523f95ce…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

10.429913 MW

Granted

The operator's latest published dataset reports 10.429913168 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:GREAT HARWOOD · payload sha256 3e9a523f95ce…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

17.7841 MW

Granted

The operator's latest published dataset reports 17.784100118 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:GREAT HARWOOD · payload sha256 3e9a523f95ce…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 10.429913 MW

26 Sep 2026: 10.429913 MW
26 Sep 2026range 10.429913 to 10.429913 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current10.429913 MW

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

Offtake · Load (any) · Available

current 18.549913 MW

26 Sep 2026: 18.549913 MW
26 Sep 2026range 18.549913 to 18.549913 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current18.549913 MW

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

Injection · Generation (any) · Available

current 17.7841 MW

26 Sep 2026: 17.7841 MW
26 Sep 2026range 17.7841 to 17.7841 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current17.7841 MW

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

Injection · Generation (any) · Available

current 3.440925 MW

26 Sep 2026: 3.440925 MW
26 Sep 2026range 3.440925 to 3.440925 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current3.440925 MW

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

Injection · Generation (any) · Available

current 2.510594 MW

26 Sep 2026: 2.510594 MW
26 Sep 2026range 2.510594 to 2.510594 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current2.510594 MW

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

Bidirectional · Battery · Available

current 17.7841 MW

26 Sep 2026: 17.7841 MW
26 Sep 2026range 17.7841 to 17.7841 MW2 Oct 2026
1 published value, as a table
Observed fromUntilValue
26 Sep 2026current17.7841 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_06gdq6jnj9v4fbz7j7amzwjds4/capacity" \  -H "Authorization: Bearer gc_live_..."
GREAT HARWOOD 6.6 kV substation: grid capacity (SP Electricity North West) · GridCapacity API