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Search Guide

This registry provides comprehensive search capabilities across all Capacity Market components:

  • Company Search: Enter a company name (e.g., "Drax", "EDF") to see all their components
  • Location Search: Search by city, region, or postcode (e.g., "Manchester", "SW1")
  • CMU ID Search: Enter a specific CMU ID to find exact components
  • Technology Search: Enter technology types like "Hydro", "OCGT", or "Battery"

The search is intelligent and will try to determine what you're looking for based on your query.

You can combine search terms to narrow results, such as "London Battery" to find battery storage in London.

Searches are not case-sensitive, and partial matches are supported (e.g., "Manch" will find "Manchester").

Understanding Auctions

The Capacity Market runs regular auctions where providers compete to secure agreements. There are two main types:

  • T-4 auctions: Held 4 years ahead of the delivery year
  • T-1 auctions: Held 1 year ahead to fine-tune capacity requirements

Each auction results in agreements that specify how much capacity providers must deliver and the payment they'll receive.

Auction years are displayed as badges (e.g., 2023-24) that you can click to view details for that specific auction year.

The Capacity Market ensures the UK has sufficient electricity supply during periods of high demand or system stress.

Providers receive payments for ensuring their capacity is available, creating a more stable and resilient electricity market.

Search Results

Search results are grouped by location and show important details about each component:

  • Active Components with auction years 2024-25 or later
  • In-Active Components with only auction years before 2024-25
  • Company Name Click to view all components for this company
  • Technology Click to search for this technology type
  • CMU: XXX Click to search for this CMU ID
  • Auction Year Click to view details for this specific auction

Each result shows the component's capacity, location details, and participation in specific auction years.

You can sort results by relevance, location, or date using the sort options.

Pagination controls appear at the bottom when there are multiple pages of results.

Component Grouping

Components at the same location with the same description are grouped together to reduce duplication.

Each group shows:

  • All CMU IDs for components at that location
  • All auction years, sorted with newest first
  • An Active/Inactive status based on auction years

Grouping helps identify multi-year contracts and related components at the same site.

The total capacity shown combines all components in the group.

Components can be expanded to show individual details by clicking the expand icon.

Sorting and Filtering

You can sort search results by:

  • Relevance: Most relevant matches first
  • Location: Alphabetical order by location name
  • Date: By auction year (newest or oldest first)
  • Capacity: Highest or lowest capacity first

Click the column headers to change sort order.

You can filter results using the search refinements at the top of the results page:

  • Filter by technology type (e.g., only show batteries)
  • Filter by active status (show only active or inactive components)
  • Filter by auction year (show only components from specific auctions)

Map Explorer & Map View

We provide two map-based tools for exploring capacity market data:

Map Explorer

The Map Explorer is our advanced interactive mapping tool, specifically designed for comprehensive data exploration with:

  • Mobile-Optimized Interface: Responsive design that works perfectly on phones and tablets
  • Advanced Filtering: Filter by technology type, company, delivery year, and active status
  • Smart Sidebar: Desktop users get a dedicated filter panel, mobile users get collapsible filters
  • Full-Screen Map: Maximizes map space for detailed geographical analysis
Search Map View

The Search Map View combines search functionality with map visualization, offering:

  • Search-First Approach: Start with text searches, then visualize results on the map
  • Integrated Results: Search results and map display work together
  • Performance Optimized: Streamlined for fast search result mapping

Both tools provide a visual representation of capacity distribution across the UK, but serve different exploration needs.

Map Features:
  • Technology Colors: Different technology types are shown with distinct colors on the map for easy identification:
    GasDSRNuclearCHPSolarWind
    BatteryBiomassHydroInterconnectorCoalOther
  • Technology Legend: The map legend shows all available technologies with their corresponding colors and component counts
  • Search Results on Map: You can view any search results on the map by clicking "View on Map" from search results pages
  • Smart Clustering: Areas with multiple components are automatically grouped into clusters - click clusters to zoom in and see individual components
  • Interactive Markers: Click on individual markers to see detailed information about components at that location

Use the map controls to zoom in on specific regions or areas of interest. The map automatically adjusts clustering based on your zoom level to provide the clearest view of capacity distribution.

Contact Us

We're here to help with any questions about the Capacity Market Registry.

Email

For general inquiries and support:

For LLMs

Complete programmatic access guide for LLMs:

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Capacity Market Search
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  • Storage (Duration 3h)

    35 unique locations (92 components) - Page 1 of 2

    All
  • Active
  • Inactive
  • Sort by: A-Z Components MW Date
    24a Flightway Dunkeswell Honiton EX14 4LG(8 components)
    • New Build Generating CMU comprising of a battery storage asset (2)
    • New Build CMU comprising of battery storage and associated plant
    BatteryStorage (Duration 3h)Storage (Duration 4h)CONRAD (DUNKESWELL) LIMITEDEX14
    Active • 2024-25 (T-4), 2023-24 (T-4) ...
    4 Sidings Rd, Kirkby in Ashfield, Nottingham NG17 7JZ(2 components)

    Battery energy storage unit (2)

    BatteryStorage (Duration 3h)POWERTREE (HOLDINGS) LIMITEDNG17
    Active • 2028-29 (T-4), 2025-26 (T-1)
    0.69 MW
    5 Foxwood Rd, Chesterfield, S41 9RA(2 components)

    Battery energy storage unit (2)

    Storage (Duration 3h)POWERTREE (HOLDINGS) LIMITEDS41
    Active • 2028-29 (T-4), 2025-26 (T-1)
    0.69 MW
    Aber Park Road, Flint Flintshire CH6 5EX(2 components)

    New Build CMU comprising of battery storage and associated plant (2)

    BatteryStorage (Duration 3h)CONRAD ENERGY (DEVELOPMENTS) LIMITEDCH6
    Active • 2024-25 (T-4), 2021-22 (T-1)
    Albion Close, Worksop, S80 1RA(2 components)

    Battery energy storage unit (2)

    Storage (Duration 3h)FRP MERCIA HOLDCO LIMITEDS80
    Active • 2028-29 (T-4), 2025-26 (T-1)
    0.68 MW
    Anglian Water Services Limited, Pineham, Milton Keynes, MK15 9PA(2 components)

    CMU component consisting of multiple battery cells for electricity storage @ 400V and the supply of electricity to the 400V network (2)

    BatteryStorage (Duration 3h)Storage (Duration 4h)Waterswallows Energy LimitedMK15
    Active • 2027-28 (T-4), 2024-25 (T-1)
    0.05 MW
    Cascade Works, Wellington Rd, Burton-on-Trent, DE14 2DW DE14 2DW Burton Upon Trent(1 component)

    Battery storage

    BatteryStorage (Duration 3h)FRP MERCIA HOLDCO 2 LIMITEDDE14
    Active • 2024-25 (T-4)
    Common Lane, Wath upon Dearne, Rotherham, South Yorkshire, S63 7DX(5 components)
    • Battery energy storage unit (2)
    • New reciprocating genset in acoustic enclosure
    Reciprocating enginesStorage (Duration 3h)FRP MERCIA HOLDCO LIMITEDS63
    Active • 2028-29 (T-4), 2025-26 (T-1) ...
    0.69 MW
    Coxhall Power, Coxhall Road, Tattingstone, Ipswich, IP9 2NH(2 components)
    • CMU component consisting of multiple battery cells for electricity storage @ 11kV and the supply of electricity to the 11kV …
    • CMU consisting of multiple battery cells for electricity storage and the supply of electricity to the electricity grid
    BatteryStorage (Duration 2h)Storage (Duration 3h)URBAN RESERVE STORAGE LIMITEDIP9
    Active • 2027-28 (T-4), 2026-27 (T-4)
    2.28 MW
    Dellsome Power, Hatfield Grid Station, Dellsome Lane, Colney Heath, St. Albans, AL4 0QT(3 components)
    • CMU component consisting of multiple battery cells for electricity storage @ 11kV and the supply of electricity to the 11kV … (2)
    • CMU consisting of multiple battery cells for electricity storage and the supply of electricity to the electricity grid
    BatteryStorage (Duration 3h)Storage (Duration 4h)Storage (Duration 3.5h)URBAN RESERVE STORAGE LIMITEDAL4
    Active • 2027-28 (T-4), 2025-26 (T-1) ...
    3.68 MW
    East Tarelgin Farm, Ayr, KA6 6NF(4 components)
    • 18.5MW/74MWh of BESS to be installed within a future Greener Grid Park.
    • 50MW/100MWh of BESS to be installed within a future Greener Grid Park.
    • BESS to be installed within a Greener Grid Park
    BatteryStorage (Duration 2h)Storage (Duration 3h)Storage (Duration 4h)Storage (Duration 2.5h)STATKRAFT UK LTDKA6
    Active • 2028-29 (T-4), 2026-27 (T-4) ...
    39.02 MW
    Former Cascade Works, Wellington Road, Burton Upon Trent, DE14 2AP(2 components)

    Battery energy storage unit (2)

    BatteryStorage (Duration 3h)FRP MERCIA HOLDCO 2 LIMITEDDE14
    Active • 2028-29 (T-4), 2025-26 (T-1)
    0.69 MW
    Fulwood Road (North), Fulwood Industrial Park, Ashfield, Nottinghamshire, NG17 2NB(2 components)

    Battery energy storage unit (2)

    Storage (Duration 3h)FRP MERCIA HOLDCO 2 LIMITEDNG17
    Active • 2028-29 (T-4), 2025-26 (T-1)
    0.69 MW
    Gas Works Road, Lowestoft, NR32 1UZ(4 components)
    • New Build Generating CMU comprising of gas fuelled reciprocating engines and gas delivery plant (2)
    • New Build CMU comprising of battery storage and associated plant
    BatteryReciprocating enginesStorage (Duration 3h)CONRAD (LOWESTOFT) LIMITEDNR32
    Active • 2024-25 (T-4), 2023-24 (T-1) ...
    Land at Common Side Lane, Featherstone, WF7 5DF(2 components)

    Battery energy storage unit (2)

    BatteryStorage (Duration 3h)FRP MERCIA HOLDCO 2 LIMITEDWF7
    Active • 2028-29 (T-4), 2025-26 (T-1)
    0.69 MW
    LAND AT DOLLYMANS FARM DOUBLEGATE LANE, RAWRETH, WICKFORD, SS11 8UB (Nearest Postcode: SS11 8UA).(9 components)

    Battery Storage Plant (3)

    BatteryStorage (Duration 1h)Storage (Duration 2h)Storage (Duration 3h)DOLLYMANS STORAGE LIMITEDSS11
    Active • 2025-26 (T-4), 2024-25 (T-4) ...
    Land at Enterprise Court Geddington Rd, Geddington, Corby, NN18 8ES(2 components)

    Battery energy storage unit (2)

    Storage (Duration 3h)CORBY POWER LIMITEDNN18
    Active • 2028-29 (T-4), 2025-26 (T-1)
    0.30 MW
    Land at Exeter College Future Skills Centre, Silverdown Office Park, EX5 2LJ(2 components)

    CMU component consisting of multiple battery cells for electricity storage @ 400V and the supply of electricity to the 400V network (2)

    BatteryStorage (Duration 3h)Storage (Duration 4h)BATTERY BOX LIMITEDEX5
    Active • 2027-28 (T-4), 2024-25 (T-1)
    0.05 MW
    Land at Fulwood Rd North, Sutton-in-Ashfield, NG17 2NB NG17 2NB Sutton in Ashfield(1 component)

    Battery storage

    BatteryStorage (Duration 3h)FRP MERCIA HOLDCO 2 LIMITEDNG17
    Active • 2024-25 (T-4)
    Land at Smith Road, Wednesbury, WS10 0PD(2 components)
    • New build generating battery storage unit.
    • New build generating storage unit
    BatteryStorage (Duration 2h)Storage (Duration 3h)GRESHAM HOUSE DEVCO PIPELINE LIMITEDWS10
    Active • 2028-29 (T-4)
    48.64 MW
    Land At South End of Mullacott Cross Industrial Estate, West Down EX34 8FN(2 components)

    CMU component consisting of multiple battery cells for electricity storage @ 400V and the supply of electricity to the 400V network (2)

    BatteryStorage (Duration 3h)Storage (Duration 4h)BATTERY BOX LIMITEDEX34
    Active • 2027-28 (T-4), 2024-25 (T-1)
    0.05 MW
    Land Forming Part Of Newton Road, Bovey Tracey, Newton Abbot TQ13 9DR(3 components)

    CMU component consisting of multiple battery cells for electricity storage @ 400V and the supply of electricity to the 400V network (3)

    BatteryStorage (Duration 3h)Storage (Duration 4h)Storage (Duration 2.5h)BATTERY BOX LIMITEDTQ13
    Active • 2028-29 (T-4), 2027-28 (T-4) ...
    0.10 MW
    Land off Fishleigh Road, Roundswell Business Park, Barnstaple, EX31 3TD(3 components)

    CMU component consisting of multiple battery cells for electricity storage @ 400V and the supply of electricity to the 400V network (3)

    BatteryStorage (Duration 3h)Storage (Duration 4h)Storage (Duration 2.5h)BATTERY BOX LIMITEDEX31
    Active • 2028-29 (T-4), 2027-28 (T-4) ...
    0.10 MW
    Land on the North Side of Blackhorse Lane, Exeter, EX1 3FP(2 components)

    CMU component consisting of multiple battery cells for electricity storage @ 400V and the supply of electricity to the 400V network (2)

    BatteryStorage (Duration 3h)Storage (Duration 4h)BATTERY BOX LIMITEDEX1
    Active • 2027-28 (T-4), 2024-25 (T-1)
    0.05 MW
    Land to the south of National Grid's Rainhill Substation, Lea Green Road, Rainhill, WA9 4QD(1 component)

    New Build transmission connected Battery Storage site on land Adjacent to National Grid's Rainhill Substation

    Storage (Duration 3h)SIZING JOHN LIMITEDWA9
    Active • 2028-29 (T-4)
    17.82 MW
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