Fig 1.
Pit Vidura total annual revenue 2016 through 2023 organised by customer type, customer group and customer status.
Type (household or corporate), group (high–volume or low–volume) and status (first–time or repeat). 2016* and 2023* are partial years based on 2 and 6 months respectively. Values are 2022 international dollars (Int$).
Table 1.
Average cost per job for emptying of pits and tanks by Pit Vidura, broken down by direct and indirect in 2022.
All costs are 2022 international dollars. Customer and emptying methods with fewer than 50 jobs in 2022 not shown. *values for the medium exhauster are from 2021 because in 2022 it was unavailable for six months undergoing major repairs.
Fig 2.
Pit Vidura financial flows 2022.
Values are 1000 international dollars 2022. Revenue is shown in grey, Value Added Tax (VAT) in blue, gross profits in green, costs in red, and cross–subsidies in yellow.
Fig 3.
Average cost and revenue per job for each customer group and emptying method at full vehicle use.
Cost assumes that each vehicle operates at full use. The tariff for semi–mechanical emptying is lowered to the level require to replace informal manual emptying and pit sealing. n = number of jobs per year.
Fig 4.
Modelled financial flows to cross–subsidise semi–mechanical emptying to replace informal manual emptying and pit–sealing, based on Pit Vidura operations in Kigali, Rwanda.
Scale required is 19 exhauster trucks operating at full use (4 large exhauster trucks, 4 medium exhauster trucks, 4 small exhauster trucks dedicated to mechanical emptying, and 7 small exhauster trucks dedicated to semi–mechanical emptying). Values are 1000 international dollars 2022. Revenue is shown in grey, Value Added Tax (VAT) in blue, gross profits in green, and cross–subsidies in yellow.