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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 1.5h)

    105 unique locations (337 components) - Page 4 of 5

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  • Active
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  • Sort by: A-Z Components MW Date
    LAND ADJACENT TO WORMALD GREEN SUB-STATION, STATION LANE, WORMALD GREEN, HARROGATE, HG3 3RX(3 components)
    • Energy Storage Site
    • New Build 33 MW Battery Energy Storage system
    • New Build Battery Energy Storage system
    BatteryStorage (Duration 2h)Storage (Duration 1.5h)HEIT WG LIMITEDHG3
    Active • 2026-27 (T-4), 2025-26 (T-1) ...
    14.35 MW
    Land adjacent to Wakefield B Substation Doncaster Road Wakefield WF1 5DB(1 component)

    New 99.9 MW Battery Energy Storage system

    BatteryStorage (Duration 1.5h)HARMONY CAS LIMITEDWF1
    Active • 2025-26 (T-4)
    Land adjacent to Gately Moor Reservoir, Redmarshall, Stockton-on-Tees TS18 1LD(1 component)

    The CMU is a PV+Storage DC coupled plant with one single interconnection point with an interconnection capacity of 40.9 MWac. Storage unit (the one participating to the pre-qualification procedure) has …

    BatteryStorage (Duration 1.5h)DARLINGTON SOLAR 1 LIMITEDTS18
    Active • 2026-27 (T-4)
    6.68 MW
    Land adjacent to Dunswell Road, Cottingham, East Yorkshire, HU16 4JS(5 components)
    • 49.5MW Battery Energy Storage facility (2)
    • 49.9MW Battery Energy Storage facility
    BatteryStorage (Duration 2h)Storage (Duration 1.5h)HARMONY (PW) 2 LIMITEDHU16
    Active • 2025-26 (T-4), 2024-25 (T-4) ...
    18.33 MW
    Land 75 metres southeast of Camas House Fairways Business Park Inverness, IV2 6AA(1 component)

    Battery energy storage facility comprising access track, compound of battery & electrical equipment, meter building, stores, fencing, security cameras, and associated landscaping

    BatteryStorage (Duration 1.5h)ICT BATTERY STORAGE LIMITEDIV2
    Active • 2027-28 (T-4)
    4.78 MW
    Land 260m to the southwest of Alness Grid Sub Station, Mid Balnacraig, Alness, Highlands, Scotland IV17 0YA(1 component)

    Standalone Battery Storage on greenfield land near Alness substation

    BatteryStorage (Duration 1.5h)BALNACRAIG BATTERY STORAGE LIMITEDIV17
    Active • 2027-28 (T-4)
    4.78 MW
    Lakeside Energy Storage facility, New Road, Long Drax, Selby, North Yorkshire, Y08 8FP(2 components)

    This is a 99.9MW battery storage facility connected at 132kV. (2)

    BatteryStorage (Duration 2h)Storage (Duration 1.5h)Plutus Energy LTDY08
    Active • 2026-27 (T-4), 2025-26 (T-1)
    43.38 MW
    Kilwinning, North Ayrshire, Scotland, KA13 7RU, United Kingdom(1 component)

    Battery energy storage system

    BatteryStorage (Duration 1.5h)BENTHEAD SOLAR LIMITEDKA13
    Active • 2028-29 (T-4)
    4.71 MW
    Kearsley Road, Cinder Hill, Ringley, Bolton, Greater Manchester, M26 1AH(1 component)

    Battery storage station

    BatteryStorage (Duration 1.5h)ALKANE ENERGY UK LIMITEDM26
    Active • 2027-28 (T-4)
    0.81 MW
    French's Road, Model Farm, Walpole, Walpole Marsh, King's Lynn and West, PE14 7JF.(4 components)
    • 25MW Lithium-ion Energy Storage System
    • 99.9MW Lithium-ion Energy Storage System
    BatteryStorage (Duration 1.5h)WALPOLE GREEN LIMITEDPE14
    Active • 2027-28 (T-4)
    28.78 MW
    Feddal Battery Storage, Land located at Feddal Estate, Braco, Dunblane, Perthshire FK15 9RA(3 components)

    New Build 9.999MW capacity, 20MWh (2hr) LiFePO4 battery energy storage system (BESS). (3)

    BatteryStorage (Duration 1h)Storage (Duration 1.5h)CAPBAL (BRACO) LIMITEDFK15
    Active • 2027-28 (T-4), 2025-26 (T-1) ...
    2.81 MW
    Elsecar Road, Brampton Bierlow, West Melton, Rotherham, S63 6LS(3 components)

    New Build Battery Storage Facility (3)

    BatteryStorage (Duration 2h)Storage (Duration 1.5h)SWANGATE ENERGY STORAGE LIMITEDS63
    Active • 2026-27 (T-4), 2025-26 (T-1) ...
    21.41 MW
    Draycott Cross Road, Cheadle, ST10 1PN(1 component)

    The CMU comprises lithium ion batteries housed in ISO containers with additional containers used to house the converters

    BatteryStorage (Duration 1.5h)BALANCE POWER PROJECTS LIMITEDST10
    Active • 2027-28 (T-4)
    4.61 MW
    Darrington Landfill Site, Darrington Leys, Cridling Stubbs, Knottingley, West Yorkshire, WF11 0AH(2 components)

    Battery Storage Station

    BatteryStorage (Duration 1h)Storage (Duration 1.5h)ALKANE ENERGY UK LIMITEDWF11
    Active • 2025-26 (T-4)
    Craigie, South Ayrshire, Scotland, KA1 5JT(2 components)

    A 175MW New Build Battery Storage Site Component

    BatteryStorage (Duration 1.5h)KILMARNOCK FLEXPOWER LTDKA1
    Active • 2027-28 (T-4)
    40.32 MW
    Clay Tye Road, Upminister, RM14 3PL(7 components)

    49.5MW Battery Energy Storage facility connected to 132kv network (3)

    BatteryStorage (Duration 2h)Storage (Duration 1.5h)HARMONY CTF 2 LIMITEDRM14
    Active • 2025-26 (T-4), 2024-25 (T-4) ...
    18.33 MW
    Clay Tye Farm, Clay Tye Road, Upminster, RM14 3PL(10 components)

    A new build 49.5MW battery energy storage system (3)

    BatteryStorageStorage (Duration 1h)Storage (Duration 2h)Storage (Duration 1.5h)HARMONY CTF LIMITEDRM14
    Active • 2025-26 (T-4), 2024-25 (T-4) ...
    18.33 MW
    Chapel Farm, Luton Road, Charlton, Luton, LU4 9UJ(7 components)

    49.5 MW Battery Energy Storage facility (3)

    BatteryStorage (Duration 2h)Storage (Duration 1.5h)HARMONY CF LIMITEDLU4
    Active • 2025-26 (T-4), 2024-25 (T-4) ...
    18.33 MW
    Camsiscan Farm, Craigie, South Ayrshire, Scotland, KA1 5JT(4 components)
    • An 87.500 MW Battery Storage Site Component.
    • An 87.500 MW New Build Battery Storage Site Component
    • An 87.500 MW New Build Battery Storage Site Component.
    BatteryStorage (Duration 1.5h)KILMARNOCK FLEXPOWER LTDKA1
    Active • 2028-29 (T-4)
    55.20 MW
    Camilla Farm, Auchtertool, Kirkcaldy, Fife, KY2 5XW(4 components)

    49.9MW Lithium-ion Energy Storage System (3)

    BatteryStorage (Duration 1h)Storage (Duration 1.5h)NEXTPOWER EELPOWER CAMILLA LIMITEDKY2
    Active • 2026-27 (T-4), 2025-26 (T-4) ...
    8.87 MW
    Calow Green, Calow, S44 5XQ(3 components)

    A Battery Energy Storage System

    BatteryStorage (Duration 1h)Storage (Duration 2h)Storage (Duration 1.5h)ADV 005 LIMITEDS44
    Active • 2026-27 (T-4)
    53.16 MW
    Bumpers Farm, Ilmer Lane, Ilmer, Buckinghamshire, HP27 9RE(1 component)

    New 49.5MW Battery Energy Storage system

    BatteryStorage (Duration 1.5h)HARMONY BF2 LIMITEDHP27
    Active • 2025-26 (T-4)
    Bullo Road, Fieldhouse, Awre, GL14 1EL(6 components)
    • New build 1.5 hour duration battery storage
    • New build one-hour duration storage
    BatteryStorage (Duration 1h)Storage (Duration 1.5h)GFV-3 LIMITEDGL14
    Active • 2026-27 (T-4), 2025-26 (T-4)
    4.73 MW
    Brodsworth Energy Park, Long Lands Lane, Brodsworth, Doncaster, DN6 7FF(2 components)

    Battery Storage Station (2)

    BatteryStorage (Duration 1h)Storage (Duration 1.5h)ALKANE ENERGY UK LIMITEDDN6
    Active • 2027-28 (T-4), 2026-27 (T-4)
    3.51 MW
    Bore Tree Baulk, Grimston, Dunnington, York,YO19 5HE(3 components)

    New build battery storage (3)

    BatteryStorage (Duration 1.5h)UK BATTERY STORAGE LTDYO19
    Active • 2025-26 (T-4), 2024-25 (T-1) ...
    Loading map...
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