1. Development Work Group 194
Orphaned Sites Analysis
30 June 2008

2. Lifecycle of a meter point
Meter point requested and created
E.g. Job cancelled, duplicate etc
Evidence of meter installed at site
No evidence of meter ever installed at site
Not yet confirmed (i.e. unregistered)
Scenario A – Confirmed by siteworks Shipper
Scenario B – Confirmed by another Shipper
Meter point end dated after xoserve investigations and discussions with Shipper. No gas consumed.
Gas quantity unknown – included in RbD – nothing in Verification – will eventually become Scenario A or B
Pre-confirmation gas is left in RbD
LATE CONFIRMED GAS ESTIMATE IN VERIFICATION
All historic gas is billed to Shipper and removed from RbD
“Orphaned sites”

3. Orphaned Sites – Energy Analysis
Late confirmed sites where M Number requesting Shipper does not confirm
Colloquially called “Orphaned Sites”
Confirming Shipper can avoid pre-confirmation energy (existing industry agreement)
Pre-confirmation energy remains in RbD
Pre-confirmation energy is a reconciling item in RbD Verification
Following slides show numbers and associated energy of “Orphaned Sites” for the last 29 months (Jan 06 to May 08)

4. Orphaned Sites – Time between meter fix and confirmation

5. Orphaned Sites – Estimated Energy between meter fix and confirmation - mWh

6. Orphaned Sites – Estimated Energy between meter fix and confirmation - %