Substation / 6.6 kV / primary

CASTLETON

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	20.696508 MW	Conditional	Now (snapshot)variant: inverter_based	14 Aug 2026
Injection	Generation (any)	Available	3.356681 MW	Conditional	Now (snapshot)variant: synchronous_lv	14 Aug 2026
Injection	Generation (any)	Available	2.449127 MW	Conditional	Now (snapshot)variant: synchronous_hv	14 Aug 2026
Offtake	Load (any)	Available	10.982655 MW	Conditional	Now (snapshot)	14 Aug 2026
Offtake	Load (any)	Available	6.345655 MW	Firm	Now (snapshot)	14 Aug 2026
Bidirectional	Battery	Available	10.982655 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

20.696508 MW

Granted

The operator's latest published dataset reports 20.696507624 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:CASTLETON · payload sha256 dc4811254f38…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

3.356681 MW

Granted

The operator's latest published dataset reports 3.356681292 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:CASTLETON · payload sha256 dc4811254f38…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

2.449127 MW

Granted

The operator's latest published dataset reports 2.449126892 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:CASTLETON · payload sha256 dc4811254f38…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

10.982655 MW

Granted

The operator's latest published dataset reports 10.982655192 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:CASTLETON · payload sha256 dc4811254f38…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

6.345655 MW

Granted

The operator's latest published dataset reports 6.345655192 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:CASTLETON · payload sha256 dc4811254f38…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

10.982655 MW

Granted

The operator's latest published dataset reports 10.982655192 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:CASTLETON · payload sha256 dc4811254f38…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 6.345655 MW

26 Sep 2026range 6.345655 to 6.345655 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	6.345655 MW

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

Offtake · Load (any) · Available

current 10.982655 MW

26 Sep 2026range 10.982655 to 10.982655 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	10.982655 MW

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

Injection · Generation (any) · Available

current 20.696508 MW

26 Sep 2026range 20.696508 to 20.696508 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	20.696508 MW

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

Injection · Generation (any) · Available

current 3.356681 MW

26 Sep 2026range 3.356681 to 3.356681 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	3.356681 MW

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

Injection · Generation (any) · Available

current 2.449127 MW

26 Sep 2026range 2.449127 to 2.449127 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	2.449127 MW

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

Bidirectional · Battery · Available

current 10.982655 MW

26 Sep 2026range 10.982655 to 10.982655 MW2 Oct 2026

1 published value, as a table

Observed from	Until	Value
26 Sep 2026	current	10.982655 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_06gdq6jnj9v4fbz7j686jgwnq8/capacity" \  -H "Authorization: Bearer gc_live_..."