Planning Greenhouses Energy Supply with Focus on Renewable Energy in Microgrid Mode

Climate change and the increasing population of countries have made the importance of greenhouses more important for future food security. One of the most important considerations in greenhouse production is the need of energy to create suitable greenhouse conditions. Therefore, in this paper, the problem of greenhouse energy planning with a focus on renewable energies will be investigated. To this, at first, the optimal numbers of renewable energy units and storage units is modeled in order to reduce costs in the micro-grid mode. In the following, the proposed mixed integer nonlinear problem (MINLP) by using the average wind speed data and the monthly amount of sunlight in the Makran region and considering different combinations of parameters Cost-wise are analyzed in 16 different problems. One of the most important results from the above is the determination of the cost-effectiveness of solar energy utilization, which is economically justified if the investment cost is twice as high as the CHP investment cost. The results also show that the impact of different renewable energy sources in the geographical area studied along with the costs of their investment and maintenance costs can lead to unjustifiable technical-economic use of different renewable resources.