2.12 Apparent Losses (AL, A18)¶
2.12.1 Inputs¶
For each DMA:
CFL version:
- System Input Volume (SIV), daily
- β: Percentage of SIV that results in the AL.
IWA version:
- Unauthorized Consumption (UC)
- Customer meter inaccuracies & data handling errors (CMI & DHE)
2.12.2 Units¶
- Input, UC, “CMI & DHE” & SIV: L/s
- Input, \(\beta\) = %.
- Output: L/s
2.12.3 Formulas¶
- \(AL \left(CFL- estimate\right)=\frac{ \beta }{100}*SIV(daily)\)
- \(AL (IWA-version)=UC+ '' CMI \& DHE ''\)
2.12.4 Aggregations over regional zones¶
- Sum
2.12.5 Notes¶
- Currently, the AL (IWA-version) is ignored.