Fig. 36: Revenues at different treatments

4.5.4 Profit margin

The profit margin is a parameter for the economy of growing a crop. It is calculated by subtracting the variable costs from the revenues. The revenues itself, is the product of the price of the sale of the fruits and kg yield. For each kg of tomatoes, growers are getting about 400 ISK from Sölufélag garðyrkjumanna (SfG) and in addition about 66 ISK from the government. Therefore, the revenues increased with more yield (Fig. 36).

Price SfG: 400 ISK/kg Price Government: 66.12 ISK/kg

Fig. 36: Revenues at different treatments.

When considering the results of previous chapter, one must keep in mind that there are other cost drivers in growing tomatoes than electricity alone (Tab. 6). Among others, this are e.g. the costs for seeds and seedling production (≈ 500 ISK/m2) and transplanting (≈ 500 ISK/m2), costs for plant nutrition (≈ 1,200 ISK/m2), CO2 transport (≈ 300 ISK/m2), liquid CO2 (≈ 1,400 ISK/m2), the rent of the tank (≈ 500 ISK/m2), the rent of the green box (≈ 500 ISK/m2), material for packing (≈ 1,500 ISK/m2), packing costs with the machine from SfG (≈ 800 ISK/m2) and transport costs from SfG (≈ 550 ISK/m2) (Fig. 37).