Meter Point Administration Number

A Meter Point Administration Number, also known as MPAN, Supply Number or S-Number, is a 21-digit reference used in Great Britain to uniquely identify electricity supply points such as individual domestic residences. The gas equivalent is the Meter Point Reference Number. The system was introduced in 1998 in order to provide a competitive environment for the electricity companies, and allows consumers to switch their supplier easily as well as simplifying administration. Although the name suggests that an MPAN refers to a particular meter, an MPAN can have several meters associated with it,[1] or indeed none where it is an unmetered supply. A supply receiving power from the network operator (DNO) has an Import MPAN, while generation and microgeneration projects feeding back into the DNO network are given Export MPANs.[1]

Structure

An MPAN is commonly separated into two sections: the core and the top line data. The core is the final 13 digits and is the unique identifier. The top line data gives information about the characteristics of the supply and is the responsibility of the supplier.

The full MPAN is required to be depicted on electricity bills (the boxes on the top and bottom line are generally unaligned).[2]

The core data is on the second line, the supplementary data on the first.

Profile Class (PC)

The first two digits of a full MPAN reflect its profile class.[3]

00 Half-hourly supply (import and export)
01 Domestic unrestricted
02 Domestic Economy meter of two or more rates
03 Non-domestic unrestricted
04 Non-domestic Economy 7
05 Non-domestic, with maximum demand (MD) recording capability and with load factor (LF) less than or equal to 20%
06 Non-domestic, with MD recording capability and with LF less than or equal to 30% and greater than 20%
07 Non-domestic, with MD recording capability and with LF less than or equal to 40% and greater than 30%
08 Non-domestic, with MD recording capability and with LF greater than 40% (also all non-half-hourly export MSIDs)

Profile class 00 supplies are half-hourly (HH) metered, i.e. they record electricity consumption for every half hour of every day, and supplies of the other profile classes are non-half-hourly (NHH) metered. A NHH supply must be upgraded to HH where:[4]

Any Metering System where the average of the maximum monthly electrical demands in the three months of highest demand, either in:

a. the previous twelve months; or
b. the period since the most recent Significant Change of Demand (whichever is the shorter)

exceeds 100kW.

HH data is recorded by the meter and collected by an onsite download, or by remote communication methods such as GSM, SMS, GPRS or telephone line.[2]

Domestic NHH import MPANs always have a profile class of 01 or 02. Domestic NHH export MPANs are allocated a profile class of 08.[3]

Meter Time Switch Code (MTC)

The MTC is a 3 digit code that reflects the various registers a meter may have, such as a single rate, day/night split, or a seasonal time of day.[5][6]

MTC Ranges
001–399DNO specific
400–499Reserved
500–509Codes for related Metering Systems – common across the Industry
510–799Codes for related Metering Systems – DNO specific
800–999Codes common across the Industry

Line Loss Factor Class (LLFC)

The Line Loss Factor Class or LLFC[7] is used to identify the related Distribution Use of System (DUoS) charges for the MPAN. The figure reflects both the amount of distribution infrastructure used to supply the exit point and the amount of energy lost through heating of cables, transformers, etc.[2]

Core

The MPAN core is the final 13 digits of the MPAN, and uniquely identifies an exit point. It consists of a two-digit Distributor ID, followed by an eight-digit unique identifier, then by two digits and a single check digit.

Distributor ID
Map of DNO licence areas

Great Britain is divided into fourteen distribution areas. For each area a single company, the distribution network operator, has a licence to distribute electricity.[8] They effectively carry electricity from the National Grid to the exit points (each having a unique MPAN and a possibility of several meters) where the customers are. The owner of the distribution network charges electricity suppliers for carrying the electricity in their network. Their DNO licensed regions are the same geographic areas as the former nationalised electricity boards.[8]

DNOs
ID Name Operator Phone Number Market Participant ID[9] GSP Group ID[10]
10 Eastern England UK Power Networks 0800 029 4285 EELC _A
11 East Midlands Western Power Distribution 0800 096 3080 EMEB _B
12 London UK Power Networks 0800 029 4285 LOND _C
13 Merseyside and Northern Wales SP Energy Networks 0330 10 10 444 MANW _D
14 West Midlands Western Power Distribution 0800 096 3080 MIDE _E
15 North Eastern England Northern Powergrid 0800 011 3332 NEEB _F
16 North Western England Electricity North West 0800 048 1820 NORW _G
17 Northern Scotland Scottish & Southern Electricity Networks 0800 048 3516 HYDE _P
18 Southern Scotland SP Energy Networks 0330 10 10 444 SPOW _N
19 South Eastern England UK Power Networks 0800 029 4285 SEEB _J
20 Southern England Scottish & Southern Electricity Networks 0800 048 3516 SOUT _H
21 Southern Wales Western Power Distribution 0800 096 3080 SWAE _K
22 South Western England Western Power Distribution 0800 096 3080 SWEB _L
23 Yorkshire Northern Powergrid 0800 011 3332 YELG _M

In addition to the distribution network operators noted above who are licensed for a specific geographic area, there are also independent distribution network operators (IDNOs). These own and operate electricity distribution networks which are mostly network extensions connected to the existing distribution network, e.g. to serve new housing developments.

Scottish Hydro Electric Power Distribution also provide distribution services in South Scotland as an IDNO and Southern Electric Power Distribution provide IDNO services in all other England and Wales areas. Other IDNOs have no "base" area.[11]

Independent Distribution Network Operators
ID Name Licensee Market Participant Id[9]
24 GTC Independent Power Networks IPNL
25 ESP Electricity ESP Electricity LENG
26 Energetics Global Utilities Connections (Electric) Ltd GUCL
27 GTC The Electricity Network Company Ltd ETCL
28 EDF IDNO UK Power Networks (IDNO) Ltd EDFI (no longer live)
29 Harlaxton Energy Networks Ltd HARL
30 Peel Electricity Networks Ltd PENL
31 UK Power Distributions Ltd UKPD
32 EAN Energy Assets Networks Ltd UDNL
35 FEAL Fulcrum Electricity Assets Ltd FEAL
36 Vattenfall Network Limited VATT

Check digit

The final digit in the MPAN is the check digit, and validates the previous 12 (the core) using a modulus 11 test. The check digit is calculated thus:

  1. Multiply the first digit by 3
  2. Multiply the second digit by the next prime number (5)
  3. Repeat this for each digit (missing 11 out on the list of prime numbers for the purposes of this algorithm)
  4. Add up all these products
  5. The check digit is the sum modulo 11 modulo 10.[12]
MPAN verification examples
The algorithm in Java is: 
int checkDigit(String toCheck) {
    int[] primes = {3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43};
    int sum = 0;
    for (int i = 0; i < primes.length; i++) {
        sum += Character.getNumericValue(toCheck.charAt(i)) * primes[i];
    }
    return sum % 11 % 10;
}

In Matlab:

function check = checkdigits(MPANCore)
% MPANCore is a cell array of 13 digit strings.
% Check is a boolean vector the same size as MPANCore.
% (100,000 MPANs in 0.05 seconds.)

core = double(char(MPANCore)')-48; c = core(1:12,:);
p = [3 5 7 13 17 19 23 29 31 37 41 43]' * ones(1, size(c, 2));
m = mod(mod(sum(p.*c), 11), 10); k = core(13,:); check = m == k;

In Pascal / Delphi:

function CheckDigit(MPANCore : array of Byte): Integer;
const
  Primes : array [0..11] of Byte = (3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43);
var
  i : integer;
begin
  Result := 0;

  for i := 0 to 11 do
    Result := Result + (MPANCore[i] * Primes[i]);

  Result := Result mod 11 mod 10;
end;

In Ruby:

# where mpan is a string
def check_digit(mpan)
  primes = [3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43]
  (0..11).inject(0) { |sum, n| sum + (mpan[n, 1].to_i * primes[n]) } % 11 % 10
end

In Visual Basic:

Public Function mpancheck(mpan As String) As Boolean

    ' Michael Diarmid (EDF)
    ' Updated 04/08/2010 MD
    ' Returns True / False if MPAN is valid
  
On Error GoTo inval

    Dim c As Variant, sum As Integer, i as Byte   
    c = Array(0, 3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43)

    For i = 1 To 12
        sum = sum + (Mid(mpan, i, 1) * c(i))
    Next i

    If Right(mpan, 1) = ((sum Mod 11) Mod 10) Then
        mpancheck = True
    Else
inval:
        mpancheck = False
    End If
 
End Function

In VisualBasic.Net 2010:

Public Function mpancheck(mpan As String) As Boolean

        ' Michael Diarmid (EDF)
        ' Updated 04/08/2010 MD
        ' Returns True / False if MPAN is valid
        ' Revised by Tym Huckin (16/03/2012) for VB 2010

        On Error GoTo inval

        Dim c As Object, sum As Integer

        c = New List(Of Integer) From {0, 3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43}

        For i = 1 To 12
            sum = sum + (Mid(mpan, i, 1) * c(i))
        Next i

        If sRight(mpan, 1) = ((sum Mod 11) Mod 10) Then
            Return True
        Else
inval:
            Return False
        End If

    End Function
    Public Function sRight(sSTRING As String, iLEN As Integer) As String
        Dim sRET As String = ""
        Try
            If iLEN >= Len(sSTRING) Then
                sRET = sSTRING
            End If
            sRET = Mid(sSTRING, Len(sSTRING) - (iLEN - 1), iLEN)
        Catch ex As Exception
            sRET = ""
        End Try
        Return sRET

    End Function

Or VB.Net 2010, avoiding the use of VB6 Compatibility Library :

    ''' <summary>
    ''' Validates an MPAN number
    ''' </summary>
    ''' <param name="mpan">At least the last 13 digits from the MPAN number, including the check digit, 
    ''' expressed as a string</param>
    ''' <returns>True for valid, otherwise false</returns>
    ''' <remarks>Written by Martin Milan, May 2012, avoiding use of VB6 compatibility library, for .Net 4.0 Client Profile</remarks>
    Public Function MPANIsValid(mpan As String) As Boolean
        
        ' Set initial conditions.
        Dim validationResult As Boolean = False
        
        If mpan.Length > 12 Then
            
            'Read the check digit into an Integer variable.
            Dim intCheckDigit As Integer
            If Integer.TryParse(mpan.Substring(mpan.Length - 1), intCheckDigit) Then
                
                Dim strTest As String = mpan.Substring(mpan.Length-13,12)
                Dim intPrimes() As Integer = { 3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43}
                Dim productTotal As Integer = 0
                Dim blnError As Boolean = False
                
                For i As Integer = 0 To 11 Step 1
                    Dim intTestDigit As Integer
                    If Integer.TryParse(mpan.Substring(i,1), intTestDigit) Then
                        productTotal += (intTestDigit * intPrimes(i))
                    Else
                        blnError = True
                        Exit For
                    End If
                Next
                
                If Not blnError Then
                    validationResult = ((productTotal Mod 11 Mod 10) = intCheckDigit)    
                Else
                    validationResult = False ' Due to a parsing error.    
                End If
                
            End If
            
        End If
        
        Return validationResult
        
    End Function

In C#:

 1     /// <summary>
 2     /// Validates an MPAN number.
 3     /// </summary>
 4     /// <param name="mpan">At least the last 13 digits from the MPAN number, including the check digit, 
 5     /// expressed as a string.</param>
 6     /// <returns>True for valid, otherwise false.</returns>
 7     public static bool MpanIsValid(string mpan)
 8     {
 9         // Set initial conditions.
10         bool validationResult = false;
11 
12         if (mpan.Length > 12)
13         {
14             // Read the check digit into an Integer variable.
15             int intCheckDigit = 0;
16             if (int.TryParse(mpan.Substring(mpan.Length - 1), out intCheckDigit))
17             {
18                 string strTest = mpan.Substring(mpan.Length - 13, 12);
19                 int[] intPrimes = {3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43};
20                 int productTotal = 0;
21                 bool blnError = false;
22 
23                 for (int i = 0; i <= 11; i++)
24                 {
25                     int intTestDigit = 0;
26                     if (int.TryParse(strTest.Substring(i, 1), out intTestDigit))
27                     {
28                         productTotal += (intTestDigit * intPrimes[i]);
29                     }
30                     else
31                     {
32                         blnError = true;
33                         break; 
34                     }
35                 }
36 
37                 if (!blnError)
38                 {
39                     validationResult = ((productTotal % 11 % 10) == intCheckDigit);
40                 }
41                 else
42                 {
43                     validationResult = false; // Due to a parsing error.    
44                 }
45             }
46         }
47 
48         return validationResult;
49     }

As a formula in Excel 365:

'MPAN in Cell A1

=IF(RIGHT(MOD(SUM(MID(A1,SEQUENCE(12),1),{3;5;7;13;17;19;23;29;31;37;41;43}),11))=RIGHT(A1),"Correct","Invalid MPAN")

In Python:

def check_digit(mpan):
    """Check MPAN digit.

    Args:
      mpan -- The first 12 digits of the MPAN number, excluding the check digit.
    """
    return sum(prime * int(digit) for prime, digit in \
            zip([3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43], mpan)) % 11 % 10

In PL/SQL:

create or replace function mpan_check(mpan in varchar2) return boolean is
  --CDP ATKINSON
  res integer := 0;
  TYPE prime_tab IS VARRAY(12) OF integer;
  primes prime_tab := prime_tab (3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43);
begin  
  for i in 1..12 loop    
    res := res + to_number( substr( mpan, i, 1) ) * primes (i);
  end loop;  
  return to_char(mod(mod(res , 11) , 10)) = substr(mpan,13,1);
end mpan_check;

In JavaScript:

 1 function checkMPAN(mpan) {
 2     var primes = [3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43];
 3     var sum = 0;
 4     var m = mpan.toString();
 5 
 6     if (m.length - 1 === primes.length) {
 7         for (var i = 0; i < primes.length; i++) {
 8             sum += parseInt(m.charAt(i)) * primes[i];
 9         }
10         return sum % 11 % 10 === parseInt(m.charAt(12));
11     }
12 
13     return false;
14 }

In PHP:

function checkMPAN($mpan)
{
    $primes = array(3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43);
    $sum = 0;
    $mpan = str_split($mpan);
    	
    if ((count($mpan) - 1) == count($primes)) {
        for ($i = 0; $i < count($primes); $i++) {
    	    $sum += $mpan[$i] * $primes[$i];
    	}
    	return (($sum % 11 % 10) == end($mpan)) ? true : false;
    } else {
    	return false;
    }
}

In SQL Server:

CREATE FUNCTION is_valid_mpan 
(  @mpan    VARCHAR(50)  )
RETURNS INT
AS
  BEGIN
	--Tim Foster (2013-01-04)
	DECLARE @is_mpan	INT
		,@x		INT = 1
		,@sum		INT = 0
			
	DECLARE	@arr	TABLE (id INT IDENTITY(1, 1), val INT)
	
	INSERT INTO @arr(val) VALUES(3),(5),(7),(13),(17),(19),(23),(29),(31),(37),(41),(43)
	
	WHILE @x <= 12
	  BEGIN
		SELECT	@sum	= @sum + (SUBSTRING(@mpan, @x, 1) * val)
		FROM	@arr
		WHERE	id	= @x
		
		SELECT @x = @x + 1
	  END
	  
	IF RIGHT(@mpan, 1) = ((@sum % 11) % 10)
	  BEGIN
		SELECT @is_mpan = 1
	  END
	ELSE
	  BEGIN
		SELECT @is_mpan = 0
	  END

	RETURN @is_mpan
END

In MySQL:

CREATE DEFINER=`root`@`%` FUNCTION `is_valid_mpan`(mpan varchar(13)) RETURNS int(11)
begin

	DECLARE is_mpan	INT;
	DECLARE x		INT;
	DECLARE sum		INT;
	declare ret     int;
	
	set x = 1;
	set sum = 0;
		
		
	CREATE TEMPORARY TABLE IF NOT EXISTS arr
	SELECT 1 `id`, 3 `val` union all
	SELECT 2 `id`, 5 `val` union all
	SELECT 3 `id`, 7 `val` union all
	SELECT 4 `id`, 13 `val` union all
	SELECT 5 `id`, 17 `val` union all
	SELECT 6 `id`, 19 `val` union all
	SELECT 7 `id`, 23 `val` union all
	SELECT 8 `id`, 29 `val` union all
	SELECT 9 `id`, 31 `val` union all
	SELECT 10 `id`, 37 `val` union all
	SELECT 11 `id`, 41 `val` union all
	SELECT 12 `id`, 43 `val`;
			
	WHILE x <= 12 DO
	
		SELECT (SUBSTRING(mpan, x, 1) * val)
		into ret
		FROM	arr
		WHERE	id	= x;
		
		set sum = sum + ret;
		
		set x = x + 1;
		
 	END while;
	  
	IF RIGHT(mpan, 1) = ((sum % 11) % 10) then
		set is_mpan = 1;
	ELSE
		set is_mpan = 0;
	end if;
	
	drop TEMPORARY table arr;
	  
	RETURN is_mpan;

end;

In Swift 3 is:

 func isValid(mpan: String) -> Bool {
        let primes = [3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43]
        let chars = Array(mpan.characters).map({Int(String($0))}).flatMap({$0})
        return zip(primes, chars).reduce(0) { $0 + $1.0 * $1.1} % 11 % 10 == chars.last!
    }

In Apex (Salesforce):

 1     /**
 2     * @description Validates an MPAN. Written by Adam Dry June 2018. Apex version 43
 3     * @param mpan the 13 digit MPAN including the check digit on the end
 4     */
 5     public Boolean mpanIsValid(String mpan) {
 6 
 7         List<Integer> primes = new List<Integer>{3, 5, 7, 13, 17, 19, 23, 29, 31, 37, 41, 43};
 8 
 9         // Read the check digit into an Integer variable
10         Integer checkDigit = Integer.valueOf(mpan.right(1));
11 
12         String strTest = mpan.substring(0, 12);
13         Integer productTotal = 0;
14 
15         for (Integer i = 0; i <= 11; i++) {
16             Integer testDigit = Integer.valueOf(strTest.Substring(i, i + 1));
17             productTotal += (testDigit * primes[i]);
18         }
19 
20         Integer computedCheck = Math.mod(Math.mod(productTotal, 11), 10);        
21         Boolean validationResult = (computedCheck == checkDigit);
22 
23         return validationResult;
24     }

MPAN state

The supply identified by the MPAN can be in one of four states: disconnected, de-energised, live, and new.

  • Disconnected: The service cable has been removed and the MPAN will not be reused.
  • De-energised: The service cable is in place, but the fuse has been removed. The meter remains connected to the distribution network, but no electricity can be used.
  • Live: Both the service cable and the fuse are in place. The supply is fully operational.
  • New: A new MPAN has been generated, however, the top line (supplementary data consisting of the Profile Class and Meter Time-Switch Code) is not yet complete. The service cable may or may not be installed.

These terms are by no means standardised. For example, a disconnected supply might be referred to as a 'dead' supply.

Export MPANs

The vast majority of MPANs are import MPANs, where energy is being consumed. However, if a supply exports to the distribution network, then an export MPAN is issued. If a supply both imports and exports, then both an import MPAN and export MPAN are issued.

Microgeneration

Formerly, export MPANs required a half-hourly compliant meter to be installed. Since 2003, it has been possible for microgeneration projects, with a capacity of 30 kW or below, to have a non-half-hourly meter to export back into the distribution network. The uptake was slow, with the first microgeneration export MPAN being issued in June 2005. Some suppliers may not bother to register the export MPAN in MPAS as the revenue is so small. Export capacity over 30 kW is required to be half-hourly metered.

Metered Supply Point

The Metered Supply Point (MSP) is the point at which the meter measuring a customer's consumption is located. It is thus also the point at which either the distribution network operator's supply, or the building network operator's lateral cable, terminates and the customer's equipment begins. In order to firmly establish a supply's MSP, the MPAN needs to be associated with a meter serial number.

Although it is common for an MPAN to be associated with one meter serial number, in some cases there is a many-to-many relationship. For example, one meter could be associated with both an import and an export MPAN, or one MPAN could be measured by three separate meters.

Metering Code of Practice[13]
Code of Practice
Code Range Configuration
COP10 less than 72 kW One HH whole current meter installed. Introduced for February 2009.[14]
COP5 less than 1MW One HH meter installed.
COP3 1MW to 10MW Two meters installed, main and check, both recording the same load. The main meter being used for billing.
COP2 10MW to 100MW Two meters installed as in COP3, but higher-accuracy class meters.
COP1 > 100MW Very few sites in the UK at this level, generally power stations and connections with the National Grid.

Unmetered supplies

It is possible for small predictable supplies to be unmetered.[15] Examples are street lights, traffic signals, signs, bollards, telephone kiosks, CCTV and advertising displays.

For a piece of equipment to be connected to the distribution network via an unmetered connection, its consumption should not exceed 500 watts and it should operate in a predictable manner, with no provision for it to be manually turned on at the end user's request. Generally the equipment would either be in operation and taking a supply of electricity 24 hours a day, or be controlled by a photocell, as is often the case for street lights.

It is the customer's responsibility to maintain an accurate and up-to-date inventory of unmetered supplies, and to inform the UMSO (UnMetered Supplies Operator) of all changes to the connected equipment.

Larger local authorities tend to trade their unmetered energy on a half-hourly basis. To do so, they employ a meter administrator[16][17] who will use daily data from a photo-electric control unit (PECU) array which is then used to calculate the energy consumption. A PECU array is a device that holds a representative number of the photocells that authority uses on their street lights or traffic signals.[18] By trading energy as unmetered half-hourly the authority will accurately pay for the energy consumed by their declared unmetered equipment, and because the data is downloaded daily the authority will see their energy invoices change throughout the year to represent the changes in season and daily lighting levels.

If, however, the unmetered supplies are being traded as non half-hourly the UMSO undertakes the responsibility to calculate an EAC (Estimated Annual Consumption). This is done using a simple formula which takes into account the circuit watts of the equipment and the annual hours of operation. For example, a piece of equipment that is in use 24 hours per day will have annual hours of 8766. For, say, a CCTV camera rated at 24 circuit watts the EAC would be 210.384kWh, calculated as circuit watts × annual hours divided by 1000.

If the equipment is street lighting the same process is used; however, the annual hours will change as each photocell is assigned a set number of annual hours which indicate how and when the lights turn on and off. These annual hours have been set by Elexon and are not locally agreed with the UMSO by the customer.

Once an EAC calculation has taken place, an EAC Certificate is provided to the customer's appointed electricity supplier for billing, with an electronic copy of the EAC being sent to the appointed data collector. The DNO make a Distribution Use of System charge on the electricity supplier for the delivery of the electricity to the customer's unmetered equipment.

Standard Settlement Configuration (SSC)

Each non-half-hourly supply has a four digit code called the Standard Settlement Configuration (SSC), which specifies the number of registers a meter has, and the times that each register is recording electricity usage. The times that a register is recording is specified with a five digit code Time Pattern Regime (TPR). So for example a supply with SSC 0943 has two registers with TPRs 00404 and 00405. The 00404 TPR register records from 01:00 to 02:30 and 08:00 to 23:30, and the 00405 register records for the rest of the time.[19]

Meter Point Administration System

Each DNO operates a Meter Point Administration System (MPAS) which holds the following information for each MPAN:

MPRS is the name of the software package that implements the MPAS system for all DNOs.[20] Since MPRS is used by most DNOs it is often used interchangeably with the term MPAS.

ECOES

ECOES (Electricity Central Online Enquiry Service) is a website that allows users and authorised industry parties to search for supply details (past and present) using such things as the 13-digit MPAN bottom line number, the meter serial number or the postcode. The user can determine a wide range of data relating to the supply including the full address, meter details, the current energisation status and also the appointed parties (i.e. the supplier, distributor, MOP, DC and DA). The site is populated from information sent from the supplier regarding the metering system.[21]

Only non-domestic users (with two valid MPANs that are not Class 1 or 2) can register to access this service.[22]

gollark: There is no C, we only use D##.
gollark: Not if we locally increase G to arbitrarily large amounts.
gollark: Fortunately, we pack our hashes densely enough into a Merkle tree that the chaotic nature of the N-body problem rapidly breaks those.
gollark: Besides, if you edit the code then the signatures will fail to validate.
gollark: The potatOS privacy policy is the most objective document, so this is unlikely.

See also

References
  1. Elexon. "Settlement of Microgeneration Export" (PDF). Archived from the original (PDF) on October 9, 2007.
  2. Energy Linx (2007). "MPAN (Meter Point Administration Number)". Retrieved 2007-02-22.
  3. Elexon. "BSCP516 – Balancing and Settlement Code" (PDF). Archived from the original (PDF) on 2012-03-19. Retrieved 2011-07-25.
  4. Elexon (2015-06-25). "Change of Measurement Class and Change of Profile Class" (PDF). Archived from the original (PDF) on 2016-08-17. Retrieved 2016-07-05.
  5. MRASCo. "The Rough Guide To MTCs" (PDF). Archived from the original (PDF) on 2016-01-13. Retrieved 2011-02-05.
  6. Elexon. "Meter Timeswitch Class table". Archived from the original on April 26, 2011. Retrieved 2011-08-23.
  7. "Line Loss Factor Class(es)". Elexon Glossary. Retrieved 2013-01-27.
  8. EnergyLinx (2007). "MPAN Request (Meter Point Administration Number Request". Retrieved 2007-02-22.
  9. Elexon. "Market Participant Role". Retrieved 2009-12-20.
  10. Elexon. "GSP Group". Retrieved 2010-06-22.
  11. Ofgem. "Notice under section 11 of the Electricity Act 1989" (PDF). Archived from the original (PDF) on December 30, 2005. Retrieved 2007-02-22.
  12. Energy Retail Association. "Data Item Definition v1 final" (PDF). p. 23. Archived from the original (PDF) on 2007-09-25. Retrieved 2014-02-25.
  13. See "Archived copy". Archived from the original on 2007-08-13. Retrieved 2008-11-16.CS1 maint: archived copy as title (link)
  14. "Change Implementation".
  15. "Unmetered Supplies". ELEXON. Retrieved 3 January 2019.
  16. Power Data Associates Ltd. "Meter Administrator".
  17. ICTIS (UK) Ltd. "Meter Administrator".
  18. "Photo Electric Control Unit Arrays". Power Data Associates. Retrieved 1 January 2019.
  19. Elexon (2011-12-12). "What are Standard Settlement Configurations?". Retrieved 2016-07-05.
  20. St. Clements Services Ltd. "Metering Point Registration System". Retrieved 2008-05-29.
  21. MRASCO. "Access to ECOES Data". Retrieved 2009-07-11.
  22. "Briefing_Note_on_Customer_Access_NDC_2" (PDF). ECOES. MRASCO. Retrieved 25 June 2015.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.