engleski

Towards aquaculture systems powered by renewable energy sources: Case study of Croatia

Most of human activities are strongly influenced by stringent environmental legislation prescribing reduction of their environmental footprint. In this sense, different technical and operational measures, alternative fuels as well as alternative power systems are investigated, where their pricing is regularly recognized as a key issue. This investigation deals with reductions of environmental footprint and lifetime costs in the aquaculture sector which involves different activities dedicated to growing of aquatic organisms and their after- treatment. In this sense, environmental and economic aspects of aquaculture systems (involving aquaculture farms and relevant farm vessels) with a high share of renewable energy sources (RES) are analysed, where typical aquaculture farm located in Croatia is taken as a test case. The energy needs of the system are evaluated and Life Cycle Assessments (LCAs) of different power system configurations are done. Life Cycle Cost Assessment (LCCA) is performed to evaluate different power system configurations from the environmental point of view. The results indicate that the electrification of farm vessels is a key solution to reduce both the environmental footprint and operating costs. Based on the specific operating profile of farm vessels, it is likely that energy needs will not be fully covered by just one type of RES. A combination of several forms of RES or an amount of electricity supplied from the national grid is needed.

Aquaculture ; Renewable energy sources

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