Capacity Market Unit (CMU)

Capacity Market Unit (CMU) level data for all capacity market registers. This is all auctions combined, including the name of the auction. Where a CMU is used in multiple auctions/deliver years the component has multiple entries

CKAN Data API

Access resource data via a web API with powerful query support.
Further information in the main CKAN Data API and DataStore documentation.

The Data API can be accessed via the following actions of the CKAN action API.

Query
`https://api.neso.energy/api/3/action/datastore_search`
Query (via SQL)
`https://api.neso.energy/api/3/action/datastore_search_sql`

Query example (first 5 results)
`https://api.neso.energy/api/3/action/datastore_search?resource_id=25a5fa2e-873d-41c5-8aaf-fbc2b06d79e6&limit=5`
Query example (via SQL statement)
`https://api.neso.energy/api/3/action/datastore_search_sql?sql=SELECT * from "25a5fa2e-873d-41c5-8aaf-fbc2b06d79e6" LIMIT 5`

A simple ajax (JSONP) request to the data API using jQuery.

var data = {
  resource_id: '25a5fa2e-873d-41c5-8aaf-fbc2b06d79e6', // the resource id
  limit: 5 // get 5 results
};
$.ajax({
  url: 'https://api.neso.energy/api/3/action/datastore_search',
  data: data,
  dataType: 'jsonp',
  success: function(data) {
    alert('Total results found: ' + data.result.total)
  }
});

A simple ajax (JSONP) request to the data API using jQuery.

import urllib2
  url = 'https://api.neso.energy/api/3/action/datastore_search?resource_id=25a5fa2e-873d-41c5-8aaf-fbc2b06d79e6&limit=5'
  fileobj = urllib2.urlopen(url)
  print fileobj.read()

Download (CSV)

Data Explorer

Table Information

Auction Name

Title	Auction Name
Type	string
Description	Name of Capacity Market Auction
Comment
Example	Capacity Market Register 2027-28 (T-4)
Unit

CMU ID

Title	CMU ID
Type	string
Description	ID of Capacity Market Unit - defined by Capacity Provider
Comment	6 characters alpha numeric
Example	18EG18
Unit

Type

Title	Type
Type	string
Description	Indicates the number of years leading up to the delivery year
Comment	Either T-1, T-4 or ST (Secondary Trade)
Example	T-1
Unit

Auction

Title	Auction
Type	string
Description	Type of auction - always 'Capacity Auction'
Comment
Example	Capacity Auction
Unit

Delivery Year

Title	Delivery Year
Type	integer
Description	First Delivery Year to which the Capacity Auction Relates to
Comment
Example	2024
Unit	Year

Name of Applicant

Title	Name of Applicant
Type	string
Description	Applicant company for the CMU Subject to the Application
Comment
Example	EXAMPLE A LIMITED
Unit

Agent Name

Title	Agent Name
Type	string
Description	Where relevant Name of the Agent Company acting on behalf of the applicant company
Comment
Example	Example Agent Limited
Unit

CM Unit Name

Title	CM Unit Name
Type	string
Description	Name Defined by Applicant Company
Comment
Example	UKEG01
Unit

Parent Company

Title	Parent Company
Type	string
Description	Parent Company of Applicant Company where applicable
Comment
Example	EXAMPLE ENERGY UK LIMITED
Unit

Secondary Trading Contact - Telephone

Title	Secondary Trading Contact
Type	string
Description	Secondary Trading Telephone Number
Comment	Includes International Dialling Code
Example	+447123456789
Unit

Secondary Trading Contact - Email

Title	Secondary Trading Contact Email
Type	string
Description	Secondary Trading e-mail address
Comment
Example	[email protected]
Unit

Transmission / Distribution

Title	Transmission/Distribution
Type	string
Description	Informs whether the CMU is Transmission or Distribution connected
Comment	Transmission/Distribution
Example	Distribution
Unit

CM Unit Type

Title	CM Unit Type
Type	string
Description	Informs whether the applicant metering is CMRS/Non CMRS
Comment	CMRS/Non CMRS
Example	Non CMRS
Unit

CM Unit Category

Title	CM Unit Category
Type	string
Description	Categorises the CMU Unit Type in accordance with defined list in CM Rules
Comment	Categories List: Existing Generating CMU New Build Generating CMU Existing Interconnector CMU New Build Generating CMU New Build Interconnector CMU Proven DSR Refurbishing Generating CMU Unproven DSR CMU
Example	New Build Generating CMU
Unit

Primary Fuel Type

Title	Primary Fuel Type
Type	string
Description	Primary Fuel of the CMU
Comment	List of Primary Fuels: Bio-fuel Coal Coal Mine methane Diesel Distillate DSR Gas Hydro Interconnector Storage - Battery Storage - Pumped Waste
Example	Storage - Battery
Unit

Storage Facility

Title	Storage Facility
Type	string
Description	Does the Site offer Battery Storage
Comment	Yes/No
Example	Yes
Unit

Pre-Qualification Decision

Title	Pre Qualification Decision
Type	string
Description	Confirms outcome of Prequalification Assessment
Comment	Possible Outcomes: Prequalified Not Prequalified Rejected Conditionally Prequalified
Example	Prequalified
Unit

Opt Out Status

Title	Opt Out Status
Type	string
Description	Has the Capacity Provider Opted in or Out
Comment	Opt-In Opt-Out
Example	Opt-In
Unit

Opt-Out Reason

Title	Opt Out Reason
Type	string
Description	Reason for CMU Opting out
Comment
Example	Closed down, decommissioned or otherwise non-operational by the start of the relevant Delivery Year
Unit

Maximum Obligation Period

Title	Maximum Obligation Period
Type	number
Description	Maximum Length of agreement the applicant can bid for in this auction
Comment	1-15 years
Example	15
Unit	Number

Unproven DSR

Title	Unproven DSR
Type	string
Description	Is the CMU subject to a DSR test
Comment	Yes/No
Example	Yes
Unit

New Build Yet to Satisfy FCM

Title	New Build Yet to Satisfy SCM
Type	string
Description	Has CMU deferred its Financial Commitment Milestone
Comment	Yes/No
Example	Yes
Unit

Connection Agreement Deferral Declaration

Title	Connection Agreement Deferral Declaration
Type	string
Description	Connection Agreement Deferral Declaration under Rule 3.7.3(c)
Comment	Yes/No
Example	Yes
Unit

TEC Deferral

Title	TEC Deferral
Type	string
Description	Has CMU deferred its Transmission Entry Capacity (T-4 only)
Comment	Yes/No
Example	N/A
Unit

Amount of Credit Cover

Title	Amount of Credit Cover
Type	number
Description	Amount of Credit Cover required
Comment
Example	12345
Unit	£

Planning Consents Conditions

Title	Planning Consents Conditions
Type	string
Description	Has the CMU Deferred its planning consents
Comment	Yes/No
Example	Yes
Unit

Connection / DSR Capacity

Title	Connection/DSR Capacity
Type	number
Description	Connection Capacity in MW
Comment	3 decimal places
Example	20.000
Unit	MW

Proven DSR Capacity

Title	Proven DSR Capacity
Type	number
Description	Confirmed DSR Capacity in MW
Comment	3 decimal places
Example	20.000
Unit	MW

DSR Bidding Capacity

Title	DSR Bidding Capacity
Type	number
Description	DSR Bidding Capacity in MW
Comment	3 decimal places
Example	20.000
Unit	MW

De-Rated Capacity

Title	De-Rated Capacity
Type	number
Description	De-Rated Capacity in MW
Comment	3 decimal places
Example	20.000
Unit	MW

Pre-Refurbishing De-Rated Capacity

Title	Pre-Refurbishing De-Rated Capacity
Type	number
Description	Pre-Refurbishing De-Rated Capacity in MW
Comment	3 decimal places
Example	20.000
Unit	MW

Post-Refurbishing De-Rated Capacity

Title	Post-Refurbishing De-Rated Capacity
Type	number
Description	Post-Refurbishing De-Rated Capacity in MW Post-Refurbishing
Comment	3 decimal places
Example	20.000
Unit	MW

Pre-Refurbishing CMU Status

Title	Pre-Refurbishing CMU Status
Type	string
Description	Confirmation of whether CMU has opted in or opted out of the pre refurb element
Comment	Opt-In/Opt-Out/Blank
Example	Opt-In
Unit

Anticipated De-Rated Capacity

Title	Anticipated De-Rated Capacity
Type	number
Description	Anticipated De-Rated Capacity in MW
Comment	3 decimal places
Example	20.000
Unit	MW

Anticipated Pre-Refurbishing De-Rated Capacity

Title	Anticipated Pre-Refurbishing De-Rated Capacity
Type	number
Description	Anticipated Pre-Refurbishing De-Rated Capacity in MW
Comment	3 decimal places
Example	20.000
Unit	MW

Anticipated Post-Refurbishing De-Rated Capacity

Title	Anticipated Post-Refurbishing De-Rated Capacity
Type	number
Description	Anticipated Post-Refurbishing De-Rated Capacity in MW
Comment	3 decimal places
Example	20.000
Unit	MW

Date of Issue of DSR Test Certificate

Title	Date of Issue of DSR Test Certificate
Type	date
Description	Date of Issue of DSR Test Certificate
Comment
Example	31/08/2023
Unit

DSR Test Method

Title	DSR Test Method
Type	string
Description	Method used to carry DSR Test
Comment	Free text
Example	Post Auction
Unit

CMU confirmed entry into Auction

Title	CMU confirmed entry into Auction
Type	string
Description	Auction Entry Confirmation
Comment	Yes/No
Example	Yes
Unit

Duration of Capacity Agreement in First Bidding Round

Title	Duration of Capacity Agreement in First Bidding Round
Type	number
Description	Customer confirmation of length of agreement being bid for
Comment	1-15 years
Example	1
Unit	Number

Pre-Refurbishment Bidding Status

Title	Pre-Refurbishment Bidding Status
Type	string
Description	Customer confirmation whether they are participating with the pre refurbishment element
Comment	Pre-Refurbishing Only Post-Refurbishing Only Pre & Post Refurbishing
Example	Yes
Unit

Capacity Agreement Awarded

Title	Capacity Agreement Awarded
Type	string
Description	Confirmation of whether capacity agreement has been awarded
Comment	Yes/No
Example	No
Unit

Duration of Capacity Agreement Awarded

Title	Duration of Capacity Agreement Awarded
Type	number
Description	Duration of Capacity Agreement that has been awarded
Comment	1-15 years
Example	1
Unit	Number

Unique Agreement Identifier

Title	Unique Agreement Identifier
Type	string
Description	Capacity agreement notice Reference
Comment	CAN including CMUID and Delivery Year
Example	CAN-2021-01EG01-001
Unit

Registered Holder

Title	Registered Holder
Type	string
Description	Registered holder of the agreement (Company account)
Comment	Companies House company name
Example	EXAMPLE BUSINESS SOLUTIONS UK LIMITED
Unit

Date of Issue of Capacity Agreement

Title	Date of Issue of Capacity Agreement
Type	date
Description	Date capacity agreement issued
Comment
Example	09/04/2021
Unit

Term of the Capacity Agreement

Title	Term of the Capacity Agreement
Type	number
Description	Length of Capacity Agreement
Comment	1-15 years
Example	1
Unit	Number

Delivery Years for which Agreement Valid

Title	Delivery Years for which Agreement Valid
Type	string
Description	List of delivery years agreement is valid for
Comment	All delivery years in comma separated string
Example	2019/2020, 2020/2021, 2021/2022
Unit

Auction Acquired Capacity Obligation

Title	Auction Acquired Capacity Obligation
Type	number
Description	Capacity Obligation in MW
Comment	3 decimal places
Example	20.000
Unit	MW

Is FCM required

Title	Is FCM required
Type	string
Description	Subject to meet Financial Commitment Milestone in accordance with Rule 6.6
Comment	Yes/No
Example	Yes
Unit

Date for Financial Commitment Milestone

Title	Date for Financial Commitment Milestone
Type	date
Description	Latest Date Financial Commitment Milestone can be submitted
Comment
Example	12/06/2021
Unit

Is Connection Agreement required

Title	Is Connection Agreement required
Type	string
Description	Subject to provide a copy of its Connection Agreement in accordance with Rule 8.3.1(a) - distribution agreements only
Comment	Yes/No
Example	Yes
Unit

Date for provision of deferred Connection Agreement

Title	Date for provision of deferred Connection Agreement
Type	date
Description	Latest date connection agreement can be submitted
Comment
Example	12/06/2021
Unit

Subject to a Minimum Completion Requirement

Title	Subject to a Minimum Completion Requirement
Type	string
Description	Is minimum completion requirement outstanding?
Comment	Yes/No
Example	Yes
Unit

Subject to Substantial Completion Milestone

Title	Subject to Substantial Completion Milestone
Type	string
Description	Is substantial completion requirement outstanding?
Comment
Example	Yes
Unit

Long-Stop Date for the Minimum Completion Requirement

Title	Long-Stop Date for the Minimum Completion Requirement
Type	date
Description	Latest date minimum completion requirement can be submitted
Comment
Example	12/06/2021
Unit

Earliest Date SCM is expected to be achieved

Title	Earliest Date SCM is expected to be achieved
Type	date
Description	Earliest Substantial Completion Milestone is expected to be achieved
Comment
Example	12/06/2021
Unit

Latest Date SCM is expected to be achieved

Title	Latest Date SCM is expected to be achieved
Type	date
Description	Latest Substantial Completion Milestone is expected to be achieved
Comment
Example	12/06/2021
Unit

Is copy of Grid Connection Agreement required

Title	Is copy of Grid Connection Agreement required
Type	string
Description	Subject to provide a copy of its Grid Connection Agreement in accordance with Rule 8.3.1(b) - transmission agreements only
Comment	Yes/No
Example	Yes
Unit

Date for provision of deferred TEC

Title	Date for provision of deferred TEC
Type	date
Description	Latest date for providing deferred Transmission Entry Capacity
Comment
Example	12/06/2021
Unit

Termination Fee 1 Rate

Title	Termination Fee 1 Rate
Type	string
Description	Termination Fee Rate
Comment
Example	£5000.00 /MW
Unit	£ per MW

Termination Fee 2 Rate

Title	Termination Fee 2 Rate
Type	string
Description	Termination Fee Rate
Comment
Example	£25000.00 /MW
Unit	£ per MW

Termination Fee 3 Rate

Title	Termination Fee 3 Rate
Type	string
Description	Termination Fee Rate
Comment
Example	£10000.00 /MW
Unit	£ per MW

Termination Fee 4 Rate

Title	Termination Fee 4 Rate
Type	string
Description	Termination Fee Rate
Comment
Example	£15000.00 /MW
Unit	£ per MW

Termination Fee 5 Rate

Title	Termination Fee 5 Rate
Type	string
Description	Termination Fee Rate
Comment
Example	£35000.00 /MW
Unit	£ per MW

Annual Penalty Cap

Title	Annual Penalty Cap
Type	number
Description	Annual Penalty Cap
Comment
Example	100%
Unit	%

Monthly Penalty Cap

Title	Monthly Penalty Cap
Type	number
Description	Monthly Penalty Cap
Comment
Example	200%
Unit	%

Legal Name of any Person with a Security Interest

Title	Legal Name of any Person with a Security Interest
Type	string
Description	Name or Names of Security Interest Provider
Comment
Example	1.Example Bank PLC
Unit

Nature of the Security Interest

Title	Nature of the Security Interest
Type	string
Description	Security Interest Type(s)
Comment	Free text by capacity provider
Example	1.Debenture
Unit

Capacity Agreement has been Terminated

Title	Capacity Agreement has been Terminated
Type	string
Description	Has Agreement been Terminated?
Comment	Yes/Blank
Example	Yes
Unit

Date of Termination of Capacity Agreement

Title	Date of Termination of Capacity Agreement
Type	date
Description	Date Capacity Agreement was Terminated
Comment
Example	19/08/2021
Unit

List of Traded Capacity Obligations

Title	List of Traded Capacity Obligations
Type	string
Description	The Physically Traded Capacity Obligation for the Period of the Transfer
Comment	Traded capacity obligations, numbered in a comma separated string
Example	T1: -1.869 MW
Unit

Period for which the transfer applies

Title	Period for which the transfer applies
Type	string
Description	List of the period of the traded capacity obligation
Comment	Traded periods, numbered in a comma separated string
Example	T1: 01/10/2021 - 30/09/2022
Unit

Capacity obligation Summary

Title	Capacity obligation Summary
Type	string
Description	Capacity obligation summary based on the traded capacity obligation(s)
Comment	Capacity obligation summary, numbered in a comma separated string
Example	01/10/2021 - 30/09/2022:0.000 MW
Unit

Beta Value

Title	Beta Value
Type	string
Description	Used for Stress Event
Comment
Example
Unit

Has Capacity Agreement been Suspended

Title	Has Capacity Agreement been Suspended
Type	string
Description	Suspension or Repayment of Capacity Payments pursuant to Rule 13.4.1
Comment	Yes - Suspended/Blank
Example	Yes - Suspended
Unit

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Capacity Market Unit (CMU)

CKAN Data API

Data Explorer

Data Explorer

Table Information

Auction Name

CMU ID

Type

Auction

Delivery Year

Name of Applicant

Agent Name

CM Unit Name

Parent Company

Secondary Trading Contact - Telephone

Secondary Trading Contact - Email

Transmission / Distribution

CM Unit Type

CM Unit Category

Primary Fuel Type

Storage Facility

Pre-Qualification Decision

Opt Out Status

Opt-Out Reason

Maximum Obligation Period

Unproven DSR

New Build Yet to Satisfy FCM

Connection Agreement Deferral Declaration

TEC Deferral

Amount of Credit Cover

Planning Consents Conditions

Connection / DSR Capacity

Proven DSR Capacity

DSR Bidding Capacity

De-Rated Capacity

Pre-Refurbishing De-Rated Capacity

Post-Refurbishing De-Rated Capacity

Pre-Refurbishing CMU Status

Anticipated De-Rated Capacity

Anticipated Pre-Refurbishing De-Rated Capacity

Anticipated Post-Refurbishing De-Rated Capacity

Date of Issue of DSR Test Certificate

DSR Test Method

CMU confirmed entry into Auction

Duration of Capacity Agreement in First Bidding Round

Pre-Refurbishment Bidding Status

Capacity Agreement Awarded

Duration of Capacity Agreement Awarded

Unique Agreement Identifier

Registered Holder

Date of Issue of Capacity Agreement

Term of the Capacity Agreement

Delivery Years for which Agreement Valid

Auction Acquired Capacity Obligation

Is FCM required

Date for Financial Commitment Milestone

Is Connection Agreement required

Date for provision of deferred Connection Agreement

Subject to a Minimum Completion Requirement

Subject to Substantial Completion Milestone

Long-Stop Date for the Minimum Completion Requirement

Earliest Date SCM is expected to be achieved

Latest Date SCM is expected to be achieved

Is copy of Grid Connection Agreement required

Date for provision of deferred TEC

Termination Fee 1 Rate

Termination Fee 2 Rate

Termination Fee 3 Rate

Termination Fee 4 Rate

Termination Fee 5 Rate

Annual Penalty Cap

Monthly Penalty Cap

Legal Name of any Person with a Security Interest

Nature of the Security Interest

Capacity Agreement has been Terminated

Date of Termination of Capacity Agreement

List of Traded Capacity Obligations

Period for which the transfer applies

Capacity obligation Summary