Substation / 6.6 kV / primary

ST MARYS

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
Direction	Technology	Measure	Value	Firmness	Horizon	Source date
Injection	Generation (any)	Available	29.513661 MW	Conditional	Now (snapshot)variant: inverter_based	14 Aug 2026
Injection	Generation (any)	Available	10.900838 MW	Conditional	Now (snapshot)variant: synchronous_lv	14 Aug 2026
Injection	Generation (any)	Available	7.953551 MW	Conditional	Now (snapshot)variant: synchronous_hv	14 Aug 2026
Offtake	Load (any)	Available	11.585927 MW	Conditional	Now (snapshot)	14 Aug 2026
Offtake	Load (any)	Available	8.126775 MW	Firm	Now (snapshot)	14 Aug 2026
Bidirectional	Battery	Available	11.585927 MW	Conditional	Now (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

29.513661 MW

Granted

The operator's latest published dataset reports 29.513660819 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:ST MARYS · payload sha256 618b85f86a79…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

10.900838 MW

Granted

The operator's latest published dataset reports 10.900837655 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:ST MARYS · payload sha256 618b85f86a79…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

7.953551 MW

Granted

The operator's latest published dataset reports 7.95355064 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:ST MARYS · payload sha256 618b85f86a79…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:ST MARYS · payload sha256 618b85f86a79…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

8.126775 MW

Granted

The operator's latest published dataset reports 8.126774555 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:ST MARYS · payload sha256 618b85f86a79…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:ST MARYS · payload sha256 618b85f86a79…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 8.126775 MW

26 Sep 2026range 8.126775 to 8.126775 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	8.126775 MW

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

Offtake · Load (any) · Available

current 11.585927 MW

26 Sep 2026range 11.585927 to 11.585927 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	11.585927 MW

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

Injection · Generation (any) · Available

current 29.513661 MW

26 Sep 2026range 29.513661 to 29.513661 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	29.513661 MW

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

Injection · Generation (any) · Available

current 10.900838 MW

26 Sep 2026range 10.900838 to 10.900838 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	10.900838 MW

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

Injection · Generation (any) · Available

current 7.953551 MW

26 Sep 2026range 7.953551 to 7.953551 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	7.953551 MW

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

Bidirectional · Battery · Available

current 11.585927 MW

26 Sep 2026range 11.585927 to 11.585927 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	11.585927 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_06gdq6jnjdszf095gc49jb32b8/capacity" \  -H "Authorization: Bearer gc_live_..."