AQ Amendment: Relevant UNC obligations and additional Validations Applied

27 May 2010

AQ Amendments: Summary

Part 1

UNC provisions (TPD G1.6.3, G1.6.4 and G1.6.5)

Part 2

xoserve system validations

Part 1: AQ Amendment Window

Part 1: Revised Value Restrictions

Larger Supply Points

No restriction

Smaller Supply Points

Must be lesser or greater than the Provisional AQ by not less than 20%

Except where the amendment would increase the AQ above 73,200kWh

Part 1: Conditions

An AQ Amendment can be raised where:

the User reasonably considers that the Provisional AQ is derived from

incorrect Meter Readings

Meter Readings taken prior to User’s registration

incorrect Supply Meter Installation details

the AQ has been carried forward due the Supply Point being Isolated within year or insufficient Meter Readings

Part 1: User Warranties

When submitting an AQ Amendment, the User warranties:

it has applied a consistent methodology

it has applied a methodology that does not materially differentiate where requested AQs are greater than or less than the Provisional AQ

it has sought amendment of all AQs that it is able to under the UNC when applying the methodology

Part 1: Information Requirements

User must specify

MPR

Two Meter Readings (in accordance with TPD H3 – Relevant Metered Period etc)

Relevant Meter Exchange information

Requested AQ

User shall record evidence and make available if requested

Part 2: xoserve System Validation

AAI – AQ Amendment requests.

If the Meter Point is not part of any confirmation OR if the Shipper is not responsible for the provided MPRN, it would be rejected with SHI 00010.

If the provided confirmation reference is not the current live confirmation of the MPRN, it would be rejected with MPO 00024.

If smaller supply meter point is not eligible for AQ/WC amendment, then reject with STD 00177

If an outstanding amendment referral exists for an MPRN, it would be rejected with AQA 00018

If the requested AQ is less than 1, it would reject with STD 00178

If the start reading date is less than 01.03.1996, then it would be rejected with STD 00149

If the end reading date is less than 01.03.1996, then it would be rejected with STD 00150

If the exchange start reading date is less than 01.03.1996, then it would be rejected with STD 00151

If the exchange end reading date is less than 01.03.1996, then it would be rejected with STD 00152

Invalid Imperial Indicator (other than Y/N), rejects with STD 00153

Invalid Reading Units (other than 1, 10, 100, 1000, 10000), rejects with STD 00155

Invalid Exchange Reading Units (other than 1, 10, 100, 1000, 10000), rejects with STD 00156

Invalid Reading factor (other than 0.01, 0.1, 1, 10, 100), rejects with STD 00157

Invalid Exchange Reading factor (other than 0.01, 0.1, 1, 10, 100), rejects with STD 00158

Start reading is greater than processing date, reject with STD 00159

End reading is greater than processing date, reject with STD 00160

Part 2: xoserve System Validation

Exchange Start reading is greater than processing date, reject with STD 00161

Exchange End reading is greater than processing date, reject with STD 00162

Invalid Manual check flag (other than Y/N), reject with STD 00163

Number of dials out of permitted range (ideal range is 4 to 12), reject with STD 00182

If reading unit, reading factor and imperial indicator are inconsistent, then reject with MMO 00533

If exchange reading unit, reading factor and imperial indicator are inconsistent, then reject with MMO 00534

If the end reading is less than start reading, then reject with STD 00166

If the start reading date is less than the earliest supply point start date, then reject with STD 00183

If the supply point is end dated and if the end date is greater than the supply point end date, then reject with STD 00183

If the exchange start reading date must be equal to end reading date, otherwise reject with STD 00164

If the exchange end reading date is less than or equal to exchange start reading date, otherwise reject with STD 00165

If exchange TTZ is 0 and if the exchange end reading date is less than exchange start reading date, otherwise reject with STD 00167

Sum of read TTZ and exchange read TTZ count should not go beyond 99, otherwise reject with STD 00193

If the shipper is not responsible for the MPRN, it would be rejected with SHI 0010

Part 2: xoserve System Validation

All the readings except the start reading date should be greater than competition effective date, otherwise reject with MRE 471

If the current and proposed market sector is Domestic, then 20% amendment tolerance rule is applied. Meter AQ changes will be accepted only if it lies beyond the tolerance range with respect to xoserve calculated initial AQ. Reject reason provided is AQA 00019

The requested AQ value (provided in the file) and the derived AQ (using the parameters in the file) should match, otherwise reject with STD 00179

If the MPRN is primary and if either the current or proposed market sectors is I&C, then refer the amendment, otherwise reject it with MPO 00587.

If the provided MPRN does not exist on the system, then reject with MPO 00001.

If the start read date is not later than AQ-WC backstop date, then reject with STD 00217

If the end read date is earlier than xoserve calculated end read date, then reject with STD 00216

Outstanding AQ/WC Appeal referral exists for this meter point, then reject with AML 00018

Insufficient information to calculate AQ, then reject with AQA 00016

Consumption period less than 6 month, then reject with MRE 00470

Post code not found, then reject with POC 00011

Start reading/date not consistent with UKLink, then reject with RRR 00010

End reading/date not consistent with UKLink, then reject with RRR 00011

Exchange start read/date not consistent with UKLink, then reject with RRR 00012

Exchange end read/date not consistent with UKLink, then reject with RRR 00013

Part 2: xoserve System Validation

TTZ count incorrect, then reject with RRR 00014

Meter exchange not identified on amendment/appeal, then reject with RRR 00015

Manual referral with insufficient supporting information, then reject with RRR 00016

Appeal window not currently open for request, then reject with RRR 00017

Exchange meter serial number not provided, then reject with STD 00137

Exchange start reading date not provided, then reject with STD 00143

Exchange end reading date not provided, then reject with STD 00145

Occurrence of DM since start reading date, then reject with STD 00171

Invalid value for number of dials or digits, then reject with STD 00181

Meter point was not part of a live supply point for entire consumption period, then reject with STD 00183

DM meter point cannot be appealed/amended to an AQ below the domestic threshold, reject with SPO 00013