Table 1. Mean cost for modelled scenarios*.
| Scenario 1 (base line) | Scenario 2 national average yield | Scenario 3d (20 log hives) | Scenario 4d (20 KTB hives) | Scenario 5d (20 Langstroth hives) | Scenario 6d (2000 C. calothyrsus trees) | |
|---|---|---|---|---|---|---|
| Hypothesised revenue | ||||||
| Honey sales | 61 | 413 | 726 | 530 | 1000 | 486 |
| Beeswax sales | 18 | 48 | 84 | 612 | 115 | 56 |
| Propolis | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
| Total benefits (Annual average) | 81 | 461 | 811 | 1143 | 1116 | 543 |
| Bee colony maintenance and product harvest | ||||||
| Labour for routine inspection @ per man hour | 24 | 92 | 118 | 120 | 120 | 92 |
| Labour for product harvest processing and packaging | 14 | 68 | 117 | 140 | 159 | 68 |
| Lighting and batteries | 4 | 10 | 10 | 10 | 10 | 10 |
| Gumboots pairs | 1 | 1 | 1 | 0.6 | 0.6 | 0.6 |
| Marketing | 8 | 46 | 74 | 98.5 | 112 | 46.1 |
| Straining cloth | 0 | 0.4 | 1 | 0 | 2 | 0.4 |
| Calliandra additional costs | ||||||
| Plant weeding and maintenance | 60 | |||||
| Total variable costs (a) | 51 | 217 | 322 | 369 | 402 | 277 |
| Investment costs | ||||||
| Log beehives | 48 | 47.88 | 116 | 48 | 47.88 | 48 |
| Kenya top bar hive | 256 | 256.48 | 256 | 989 | 256.48 | 256 |
| Langstroth | 43 | 43.24 | 43 | 43 | 908.04 | 43 |
| Smoker | 11 | 11.44 | 11 | 11 | 11.44 | 11 |
| Bee suits pairs | 46 | 46.21 | 46 | 46 | 46.21 | 46 |
| Airtight buckets | 8 | 82.71 | 259 | 177 | 200.31 | 93 |
| Beehive siting | ||||||
| Site clearing | 4 | 4 | 12 | 16 | 16 | 4 |
| Labour for hanging of beehives | 4 | 4 | 12 | 16 | 16 | 4 |
| C. calothyrsus costs | ||||||
| Seedling purchase | 60 | |||||
| Seedling planting | 200 | |||||
| Total fixed costs (b) | 421 | 496 | 75 | 1345 | 1502 | 766 |
* Vales (USD) and calculated for a 10-year cash flow. For each suggested intervention, the optimal scenario (highest benefits) was chosen and mean annual cost for each input computed.