Ministry of Water, Irrigation and Electricity
Operation and Maintenance Management Manual
Training Module - D
Community Based Financial
Management
DEMEWOZ CONSULTANCY
28
Taking the above case of XXX WASHCO, let us calculate an amount of required
revenue.
Minimum required revenue accounts for the sum of running
cost plus maintenance
cost plus and replacement cost in reference with the above basic formula No. 2
Then, let us move into a discussion on quantity required
.
b) Quantity:
In accordance
with technical standard, a hand pump
lifts up waters with an
amount of 0.2 liter per second. XXX WASHCO sets
service hours separately in
the morning and in the afternoon.
Revenue = Tariff x Quantity
Example:
Monthly running cost: Birr 230.00
Monthly maintenance cost: Birr 83.30
Monthly replacement cost: Birr 167.00
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