Revenue Collection
Gobabeb have different user groups and uses different tariffs for these based on the following principles.
Actual calculation of tariffs is based on a long term balance of income and expenses as illustrated here. Major expenses are reinvestments in new batteries, inverter (after 15 years) and in solar panels (after 25 years). Expenses for fuel are in this example minor.
Actual tariffs is not yet decided but the following is considered:
| Name | Tariff for | Tariff |
| Local tariff | Residents and others who should benefit from the grant (SADC) | 1.50 NAD per kWh |
| Visitor tariff | Visitors who should not benefit from the grant | 4,50 NAD per kWh |
The consumption of electricity consist of personal and non-personal
consumption:
• Personal consumption in residential units (a house).
• Non-personal consumption includes offices, sewer pump,
swimming pool, area light, borehole pump, offices, laundry, and
server etc.
The personal consumption is now metered per building (in most
cases) and will be paid for according to actual readings by the
person/group using it.
The non-personal consumption can not practically be metered per
individual and is therefore paid as a fixed consumption per day
paid at the tariff that applies.
Residents will pay for their personal consumption from their own
pocket, but not for the non-personal consumption which is part
of their work. Gobabeb is paying to "Gobabeb energy Services"
for this consumption.
The non-personal consumption per person per day is considered
to be 2.0 kWh per day per person.
| Personal consumption | Non personal Consumption | |
| Collection system | Paid according to meter per kWh | Paid according to an estimated consumption in kWh per day present at Gobabeb. |
| Calculation of payment | 1.5 NAD per kWh for locals and 4.5 NAD per kWh for visitors. | 4.0 kWh per day of presence at Gobabeb paid at 1.5 NAD per
kWh for locals and 4.5 NAD per kWh for visitors. That is 1.5 x 2.0 = 3.00 NAD per day for locals. And 4.5 x 2.0 = 9 NAD per day for visitors. |
Example
A payment example for a visitor living for 12 days in a guest house would for example be.
| Personal electricity | |||
| a | Meter reading at departure | kWh | 3459 |
| b | Meter reading at arrival | kWh | 3423 |
| c | Personal consumption | kWh | 36 |
| d | Tariff (visitor tariff) | NAD/kWh | 4.5 |
| e | Payment personal, c * d | NAD | 162 |
| Non-personal electricity | |||
| f | Number of days | 12 |
|
| g | Non-personal consumption per occupancy day | kWh/day | 2 |
| h | Non-personal consumption, f * g | kWh | 24 |
| i | Tariff (visitors tariff) | NAD/kWh | 4.5 |
| j | Payment non-personal consumption, h * i | NAD | 108 |
| Total payment | NAD | 270 |
In this example it is assumed that there is one person who pays for 4.0 kWh per day for non-personal consumption. If two people were living in that guest house, they would have to pay for 24 days for non-personal consumption, but still the same for personal consumption.
