P216 Release

Release Implementation

The Authority approved Modification P216 ‘Audit of LLF production’ on 25 April 2008. It was implemented on 20 April 2009.

P216 provides greater transparency and consistency in the calculation and application of Line Loss Factors (LLFs) used in settlement, by setting out the high level principles for calculating generic and site specific LLFs.

Who does it impact?

Each Licensed Distribution System Operator (LDSO) is required to develop and apply a methodology for the calculation of their LLFs. LDSOs will be audited to check that their methodology follows the high level principles and that their LLFs have been produced in line with their methodology.

A new BSC Procedure, BSCP128 ‘Production and Audit of Line Loss Factors’ has been developed to set out the new process, and became effective on 20 April.

Business Requirements Solution

The Business Requirements Solution (BRS) document details the requirements and solutions we’ve implemented for P216.

Impact Matrix

The Impact Matrix lists all Code Subsidiary Documents and Configurable Items which were impacted by the Release and all CPs in the Release.

Key Dates

The following key dates were identified:

Activity	Date
LDSOs Education Session	10 September 2008
Review of BSCP128 ‘Production and Audit of Line Loss Factors’	5 January 2009
BSCP128 presented to the BSC Panel for adoption as a CSD	12 March 2009
P216 Implementation Date	20 April 2009

P216 Supporting Information

On 10 September 2008, we held a P216 Education Session for LDSOs, Distribution Network Operators and other interested Parties. All the documentation relating to this session is available to download below.