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  • Understanding AuctionsSearch ResultsComponent GroupingSortingMap ViewContact Us

    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:

    Search / All Locations / All Postcodes / SN15 / SN15 1RS

    Chippenham Station, Cocklebury Lane, Chippenham, SN15 1RS

    No capacity
    Total Capacity
    SN15 1RS
    Postcode
    9
    Components
    Prequalified
    Prequalification
    * Latest auction year on record
    Descriptions:
    • 4 x reciprocating engines
    Trading Contacts:
    SSE UTILITY SOLUTIONS LIMITED
    '+441738341632
    SSE UTILITY SOLUTIONS LIMITED
    '+441738341632 [email protected]

    CMU Registry Data

    CMU CHIP25
    SSE plc
    Opt-Out Prequalified
  • ✓ Prequalified
  • 2025-26
    Capacity Information
    Anticipated Capacity
    9.547
    Unit Information
    CMU Type
    Non CMRS
    Category
    Existing Generating CMU
    Storage Facility
    No
    Commercial Information
    Organization
    Company Name
    N/A
    Parent Company
    SSE plc
    Opt Out Status
    Opt-Out
    Agreement Details
    _id
    12572
    CMU ID
    CHIP25
    Auction
    Capacity Auction
    Auction Name
    2025-26 (T-4) Four Year Ahead Capacity Auction
    CM Unit Name
    Chippenham
    Opt-Out Reason
    Closed down, decommissioned or otherwise non-operational by the start of the relevant Delivery Year
    Name of Applicant
    SSE UTILITY SOLUTIONS LIMITED
    Transmission / Distribution
    Distribution
    Secondary Trading Contact - Email
    Secondary Trading Contact - Telephone
    '+441738341632
    Auction Participation History
    2025-26T-42025-26 (T-4) Four Year Ahead Capacity Auction
    Prequalified
    Component ID: 114721
    Status: Prequalified
    Auction-specific values (differ from CMU baseline):
    • OS Grid Reference: ST 926 743
    • Location and Post Code: Chippenham Station, Cocklebury Lane, Chippenham, SN15 1RS
    • Generating Technology Class: Reciprocating engines
    • Description of CMU Components: 4 x reciprocating engines
    CMU CHIP24
    SSE plc
    Opt-Out Prequalified
  • ✓ Prequalified
  • 2024-25
    Capacity Information
    Anticipated Capacity
    9.522
    Unit Information
    CMU Type
    Non CMRS
    Category
    Existing Generating CMU
    Storage Facility
    No
    Commercial Information
    Organization
    Company Name
    N/A
    Parent Company
    SSE plc
    Opt Out Status
    Opt-Out
    Agreement Details
    _id
    11082
    CMU ID
    CHIP24
    Auction
    Capacity Auction
    Auction Name
    2024-25 (T-4) Four Year Ahead Capacity Auction
    CM Unit Name
    Chippenham
    Opt-Out Reason
    Operational throughout the relevant Delivery Year
    Name of Applicant
    SSE UTILITY SOLUTIONS LIMITED
    Transmission / Distribution
    Distribution
    Secondary Trading Contact - Email
    Secondary Trading Contact - Telephone
    '+441738341632
    Auction Participation History
    2024-25T-42024-25 (T-4) Four Year Ahead Capacity Auction
    Prequalified
    Component ID: 114704
    Status: Prequalified
    Auction-specific values (differ from CMU baseline):
    • OS Grid Reference: ST 926 743
    • Location and Post Code: Chippenham Station, Cocklebury Lane, Chippenham, SN15 1RS
    • Generating Technology Class: Reciprocating engines
    • Description of CMU Components: 4 x reciprocating engines
    CMU CHIP23
    9.498 SSE UTILITY SOLUTIONS …
    Prequalified
  • ✓ Prequalified
  • 2023-24
    Capacity Information
    De-Rated Capacity
    9.498
    Connection/DSR Capacity
    10
    Anticipated Capacity
    9.498
    Max Obligation Period
    1
    Unit Information
    CMU Type
    Non CMRS
    Primary Fuel
    Gas
    Category
    Existing Generating CMU
    Storage Facility
    No
    Commercial Information
    Termination Fee Rate 1
    £5000.00 /MW
    Termination Fee Rate 2
    £25000.00 /MW
    Termination Fee Rate 3
    £10000.00 /MW
    Termination Fee Rate 4
    £15000.00 /MW
    Termination Fee Rate 5
    £35000.00 /MW
    Annual Penalty Cap
    1
    Monthly Penalty Cap
    2
    Organization
    Company Name
    N/A
    Parent Company
    SSE plc
    Registered Holder
    SSE UTILITY SOLUTIONS LIMITED
    Opt Out Status
    Opt-In
    Agreement Details
    Agreement Awarded
    Yes
    Agreement ID
    CAN-2023-CHIP23-001
    Agreement Term
    1
    _id
    9576
    CMU ID
    CHIP23
    Auction
    Capacity Auction
    Auction Name
    2023-24 (T-4) Four Year Ahead Capacity Auction
    CM Unit Name
    Chippenham
    Name of Applicant
    SSE UTILITY SOLUTIONS LIMITED
    Pre-Qualification Decision
    Prequalified
    Transmission / Distribution
    Distribution
    CMU confirmed entry into Auction
    Yes
    Secondary Trading Contact - Email
    [email protected]
    Date of Issue of Capacity Agreement
    2020-04-17
    Auction Acquired Capacity Obligation
    9.498
    Secondary Trading Contact - Telephone
    '+441738341632
    Capacity Agreement has been Terminated
    Yes
    Duration of Capacity Agreement Awarded
    1
    Delivery Years for which Agreement Valid
    2023/2024
    Date of Termination of Capacity Agreement
    2022-08-05
    Duration of Capacity Agreement in First Bidding Round
    1
    Auction Participation History
    2023-24T-42023-24 (T-4) Four Year Ahead Capacity Auction
    Prequalified
    Component ID: 268595
    Status: Prequalified
    Auction-specific values (differ from CMU baseline):
    • OS Grid Reference: ST 926 743
    • Location and Post Code: Chippenham Station, Cocklebury Lane, Chippenham, SN15 1RS
    • Generating Technology Class: Reciprocating engines
    • Description of CMU Components: 4 x reciprocating engines
    CMU CHP22D
    9.498 SSE UTILITY SOLUTIONS …
    Prequalified
  • ✓ Prequalified
  • 2022-23
    Capacity Information
    De-Rated Capacity
    9.498
    Connection/DSR Capacity
    10
    Anticipated Capacity
    9.498
    Max Obligation Period
    1
    Unit Information
    CMU Type
    Non CMRS
    Primary Fuel
    Gas
    Category
    Existing Generating CMU
    Storage Facility
    No
    Commercial Information
    Termination Fee Rate 1
    £5000.00 /MW
    Termination Fee Rate 2
    £25000.00 /MW
    Termination Fee Rate 3
    £10000.00 /MW
    Termination Fee Rate 4
    £15000.00 /MW
    Termination Fee Rate 5
    £35000.00 /MW
    Annual Penalty Cap
    1
    Monthly Penalty Cap
    2
    Organization
    Company Name
    N/A
    Parent Company
    SSE plc
    Registered Holder
    SSE UTILITY SOLUTIONS LIMITED
    Opt Out Status
    Opt-In
    Agreement Details
    Agreement Awarded
    Yes
    Agreement ID
    CAN-2022-CHP22D-001
    Agreement Term
    1
    _id
    6983
    CMU ID
    CHP22D
    Auction
    Capacity Auction
    Auction Name
    2022-23 (T-3) Three Year Ahead Capacity Auction
    CM Unit Name
    Chippenham
    Name of Applicant
    SSE UTILITY SOLUTIONS LIMITED
    Pre-Qualification Decision
    Prequalified
    Transmission / Distribution
    Distribution
    CMU confirmed entry into Auction
    Yes
    Secondary Trading Contact - Email
    [email protected]
    Date of Issue of Capacity Agreement
    2020-03-11
    Auction Acquired Capacity Obligation
    9.498
    Secondary Trading Contact - Telephone
    '+441738341632
    Capacity Agreement has been Terminated
    Yes
    Duration of Capacity Agreement Awarded
    1
    Delivery Years for which Agreement Valid
    2022/2023
    Date of Termination of Capacity Agreement
    2022-08-05
    Duration of Capacity Agreement in First Bidding Round
    1
    Auction Participation History
    2022-23T-?2022-23 (T-3) Three Year Ahead Capacity Auction
    Prequalified
    Component ID: 281985
    Status: Prequalified
    Auction-specific values (differ from CMU baseline):
    • OS Grid Reference: ST 926 743
    • Location and Post Code: Chippenham Station, Cocklebury Lane, Chippenham, SN15 1RS
    • Generating Technology Class: Reciprocating engines
    • Description of CMU Components: 4 x reciprocating engines
    CMU CHIP22
    9.514 SSEPG (OPERATIONS) LIMITED
    Prequalified
  • ✓ Prequalified
  • 2022-23
    Capacity Information
    De-Rated Capacity
    9.514
    Connection/DSR Capacity
    10
    Anticipated Capacity
    9.514
    Max Obligation Period
    1
    Unit Information
    CMU Type
    Non CMRS
    Primary Fuel
    Gas
    Category
    Existing Generating CMU
    Storage Facility
    No
    Commercial Information
    Organization
    Company Name
    N/A
    Parent Company
    SSE plc
    Opt Out Status
    Opt-In
    Agreement Details
    _id
    8024
    CMU ID
    CHIP22
    Auction
    Capacity Auction
    Auction Name
    2022-23 (T-4) Four Year Ahead Capacity Auction
    CM Unit Name
    Chippenham
    Name of Applicant
    SSEPG (OPERATIONS) LIMITED
    Pre-Qualification Decision
    Prequalified
    Transmission / Distribution
    Distribution
    CMU confirmed entry into Auction
    Yes
    Secondary Trading Contact - Email
    [email protected]
    Secondary Trading Contact - Telephone
    '+441738341632
    Auction Participation History
    2022-23T-42022-23 (T-4) Four Year Ahead Capacity Auction
    Prequalified
    Component ID: 282107
    Status: Prequalified
    Auction-specific values (differ from CMU baseline):
    • OS Grid Reference: ST 926 743
    • Location and Post Code: Chippenham Station, Cocklebury Lane, Chippenham, SN15 1RS
    • Generating Technology Class: Reciprocating engines
    • Description of CMU Components: 4 x reciprocating engines
    CMU CHIP21
    9.675 SSE UTILITY SOLUTIONS …
    Prequalified
  • ✓ Prequalified
  • 2021-22
    Capacity Information
    De-Rated Capacity
    9.675
    Connection/DSR Capacity
    10.205
    Anticipated Capacity
    9.675
    Max Obligation Period
    1
    Unit Information
    CMU Type
    Non CMRS
    Primary Fuel
    Gas
    Category
    Existing Generating CMU
    Storage Facility
    No
    Commercial Information
    Termination Fee Rate 1
    £5000.00 /MW
    Termination Fee Rate 2
    £25000.00 /MW
    Termination Fee Rate 3
    £10000.00 /MW
    Termination Fee Rate 4
    £15000.00 /MW
    Termination Fee Rate 5
    £35000.00 /MW
    Annual Penalty Cap
    1
    Monthly Penalty Cap
    2
    Organization
    Company Name
    N/A
    Parent Company
    SSE plc
    Registered Holder
    SSE UTILITY SOLUTIONS LIMITED
    Opt Out Status
    Opt-In
    Agreement Details
    Agreement Awarded
    Yes
    Agreement ID
    CAN-2021-CHIP21-001
    Agreement Term
    1
    _id
    5284
    CMU ID
    CHIP21
    Auction
    Capacity Auction
    Auction Name
    2021-22 (T-4) Four Year Ahead Capacity Auction
    CM Unit Name
    Chippenham
    Name of Applicant
    SSE UTILITY SOLUTIONS LIMITED
    Pre-Qualification Decision
    Prequalified
    Transmission / Distribution
    Distribution
    CMU confirmed entry into Auction
    Yes
    Secondary Trading Contact - Email
    [email protected]
    Date of Issue of Capacity Agreement
    2018-03-20
    Auction Acquired Capacity Obligation
    9.675
    Has Capacity Agreement been Suspended
    Yes - Suspended
    Secondary Trading Contact - Telephone
    '+441738341632
    Capacity Agreement has been Terminated
    Yes
    Duration of Capacity Agreement Awarded
    1
    Delivery Years for which Agreement Valid
    2021/2022
    Date of Termination of Capacity Agreement
    2022-08-05
    Duration of Capacity Agreement in First Bidding Round
    1
    Auction Participation History
    2021-22T-42021-22 (T-4) Four Year Ahead Capacity Auction
    Prequalified
    Component ID: 278134
    Status: Prequalified
    Auction-specific values (differ from CMU baseline):
    • OS Grid Reference: ST 926 743
    • Location and Post Code: Chippenham Station, Cocklebury Lane, Chippenham, SN15 1RS
    • Generating Technology Class: OCGT and Reciprocating Engines (Fuel Type - Gas)
    • Description of CMU Components: 4 x reciprocating engines
    CMU CHIP01
    9.614 SSE UTILITY SOLUTIONS …
    Prequalified (2)
  • ✓ Prequalified
  • ✓ Prequalified
  • 2020-21 2017-2020
    Capacity Information
    De-Rated Capacity
    9.614
    Connection/DSR Capacity
    10.209
    Max Obligation Period
    1
    Unit Information
    CMU Type
    Non CMRS
    Category
    Existing Generating CMU
    Storage Facility
    No
    Commercial Information
    Termination Fee Rate 1
    £5000.00 /MW
    Termination Fee Rate 2
    £25000.00 /MW
    Termination Fee Rate 3
    £10000.00 /MW
    Termination Fee Rate 4
    £15000.00 /MW
    Termination Fee Rate 5
    £35000.00 /MW
    Annual Penalty Cap
    1
    Monthly Penalty Cap
    2
    Organization
    Company Name
    N/A
    Registered Holder
    SSE UTILITY SOLUTIONS LIMITED
    Opt Out Status
    Opt-In
    Agreement Details
    Agreement Awarded
    Yes
    Agreement ID
    CAN-2017-CHIP01-001
    Agreement Term
    1
    _id
    281
    CMU ID
    CHIP01
    Auction
    Capacity Auction
    Auction Name
    2017-18 (T-1) One Year Ahead Capacity Auction
    CM Unit Name
    Chippenham
    Name of Applicant
    SSE UTILITY SOLUTIONS LIMITED
    Pre-Qualification Decision
    Prequalified
    Transmission / Distribution
    Distribution
    CMU confirmed entry into Auction
    Yes
    Date of Issue of Capacity Agreement
    2017-02-14
    Auction Acquired Capacity Obligation
    9.614
    Secondary Trading Contact - Telephone
    '+441738341632
    Duration of Capacity Agreement Awarded
    1
    Delivery Years for which Agreement Valid
    2017/2018
    Auction Participation History
    2020-21T-42020-21 (T-4) Four Year Ahead Capacity Auction
    Prequalified
    Component ID: 281388
    Status: Prequalified
    Auction-specific values (differ from CMU baseline):
    • OS Grid Reference: ST 926 743
    • Location and Post Code: Chippenham Station, Cocklebury Lane, Chippenham, SN15 1RS
    • Description of CMU Components: 4 x reciprocating engines
    2017-18T-12017-18 (T-1) One Year Ahead Capacity Auction
    Prequalified
    Component ID: 535941
    Status: Prequalified
    Auction-specific values (differ from CMU baseline):
    • OS Grid Reference: ST 926 743
    • Location and Post Code: Chippenham Station, Cocklebury Lane, Chippenham, SN15 1RS
    • Description of CMU Components: 4 x reciprocating engines
    2017-18T-12017-18 (T-1) One Year Ahead Capacity Auction
    Prequalified
    Component ID: 584681
    Status: Prequalified
    Auction-specific values (differ from CMU baseline):
    • OS Grid Reference: ST 926 743
    • Location and Post Code: Chippenham Station, Cocklebury Lane, Chippenham, SN15 1RS
    • Description of CMU Components: 4 x reciprocating engines
    2017-18T-12017-18 (T-1) One Year Ahead Capacity Auction
    Prequalified
    Component ID: 661069
    Status: Prequalified
    Auction-specific values (differ from CMU baseline):
    • OS Grid Reference: ST 926 743
    • Location and Post Code: Chippenham Station, Cocklebury Lane, Chippenham, SN15 1RS
    • Description of CMU Components: 4 x reciprocating engines
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