Technical, economic and environmental analysis of a hybrid system containing CHP, solar panel, wind turbine with electrolyser and battery as energy storage: case study

The environmental problems by fossil fuels and shortage of these kinds of energy cause many governmental organisations to put incentive conditions to attract private companies to invest in renewable energies. In this regard, Iran has many potential of renewable resources. From the viewpoint of solar radiation, Iran has potential installation of 60,000 MW as solar power plants and 100,000 MW as wind power plants. In this paper the economic and environmental analysis of some available renewable resources including photovoltaic panels (PV), wind turbine (WT), combined heat and power (CHP) plant, reformer, electrolyser and battery have been utilised for a hospital in Tabriz. The cost of energy (COE), internal rate of return (IRR) and net present value (NPV) of all feasible and economical combination of resources have been investigated. The input related data have been entered in HOMER software based on Tabriz climate. The simulation has been carried out for different amount of sensitivities including price of natural gas, CO2 social penalty cost, wind speed and global solar radiation. Moreover, different combination of utilisation of resources from the viewpoint of NPV, IRR and COE has been studied. Finally, the most economic hybrid system for the mentioned hospital in different amount of sensitivities has been analysed.