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Fig. 29: Profit margin in relation to tariff and treatment
planting and CO2 costs. The proportion of the variable and fixed costs is mainly the same for the HPS treatment and the LED treatment, except that for the LED treatment is the proportion of electricity about 10 % lower, whereas the proportion of the investment into lamps and bulbs is about 5 % higher compared to the proportion of the HPS chamber.
A detailed composition of the variable costs at each treatment is shown in Tab. 9.
The profit margin was dependent on the treatment and was between 4.500-8.000 ISK/m2 (Fig. 29). The profit margin was higher for Sonata (7.000-9.000 ISK/m2) than for Magnum (4.500-6.500 ISK/m2). The profit margin was higher when LEDs were used instead of HPS lights. That means the choose of LEDs instead of HPS lights roose the profit margin by 500 ISK/m2 for Sonata and by 1.200 ISK/m2 for Magnum. However, it has to be taken into account that the profit margin depends much on the actual price of the LEDs. Also, the choose of Sonata instead of Magnum increased the profit margin by 2.300 ISK/m2 when HPS lights were used and by 1.600 ISK/m2 when LED lights were used.
