Contents lists available at ScienceDirect Energy Conversion and Management journal homepage: www.elsevier.com/locate/enconman Development and performance assessment of a new integrated solar, wind, and osmotic power system for multigeneration, based on thermodynamic principles Nurettin Sezer ⁎ , Muammer Koç Division of Sustainable Development (DSD), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Education City, Doha, Qatar ARTICLE INFO Keywords: Energy Renewable energy Exergy Concentrated solar energy Multigeneration Pressure retarded osmosis Hydrogen energy ABSTRACT This study analyzes a new renewable energy-based multigeneration system, in which the energy sources are efficiently utilized to generate several useful commodities such as hydrogen, oxygen, desalted water, and re- frigeration along with electricity. Osmotic power from desalination brine solution is harvested to contribute to the electricity generation and to reduce the environmental impact of brine. The system units are concentrated photovoltaics/thermal (CPVT), wind turbines, thermal energy storage (TES), hydrogen electrolyzer, hydrogen fuel cell, multistage flash (MSF) distillation, vapor compression refrigeration (VCR) cycle, and pressure retarded osmosis (PRO). The energetic and exergetic performance of the overall system, as well as the system units, are calculated based on the first and second law of thermodynamics. Further, a comprehensive parametric study is conducted to investigate the effect of varying environmental and operational conditions, and the input para- meters on the production rate, exergy destruction rate and efficiencies. For maintaining the high efficiency of CPV operation, the heat generated on photovoltaic (PV) cells is dissipated by an effective cooling system. This heat is then stored in the TES to be further utilized in desalination. The TES is used for eliminating energy fluctuations in the system and for a continuous operation by storing the energy for the time, when energy from the sun is not available. The electricity from CPV and wind power is used in the VCR cycle and hydrogen electrolysis. The fuel cell can be operated during the time of peak electricity demand. After performing ther- modynamic analysis over the system, the overall energy and exergy efficiencies are determined as 73.3% and 30.6%, respectively. The exergy destruction rates of the components are specified. In brief, generation of mul- tiple commodities is assured based on a clean operation by a novel integration of multiple clean energy sources in one system. 1. Introduction The primary method of energy production relies on petroleum, natural gas, and coal. Nearly 80% of the global energy consumption is based on these fossil fuels [1,2]. The demand for fossil fuels is in- creasing dramatically, which has aroused significant concerns about environmental pollution, greenhouse gas emission, as well as the se- curity of energy supply. Therefore, it is essential to overcome the high dependency on fossil fuels. Renewable energy systems have been re- ceiving growing attention to meet the increasing global energy demand in a cleaner and sustainable way. At present, different countries have already made plans to diversify their energy supply and increase the proportion of renewable energy for power generation [3,4]. Solar energy is the prominent renewable energy source, but it is insufficient to generate power throughout a day. Thus, other clean energy sources should be integrated with to solve the solar inter- mittency problem. Previous studies showed that integrating several energy sources in one system improve the overall efficiency of a plant [5–8]. In addition, integrated systems can serve for generating several commodities, simultaneously. To date, different configurations of in- tegrated renewable energy systems have been proposed in the litera- ture. They are reported to achieve improved energy and exergy effi- ciencies after system integration. For instance, Khalid et al. [9] designed and analyzed a new multigeneration system by integrating solar energy with biomass energy. The system generated electricity, space heating, cooling and hot water with energy and exergy effi- ciencies of 91.0% and 34.9%, respectively. The results showed that the integrated system is more efficient and economical compared to the cases, in which solar and biomass systems run individually. Ros- tamzadeh et al. [10] proposed a hybrid biogas-geothermal heat source- https://doi.org/10.1016/j.enconman.2019.03.051 Received 1 January 2019; Received in revised form 1 March 2019; Accepted 17 March 2019 ⁎ Corresponding author. E-mail addresses: nursezer@hbku.edu.qa (N. Sezer), mkoc@hbku.edu.qa (M. Koç). Energy Conversion and Management 188 (2019) 94–111 0196-8904/ © 2019 Elsevier Ltd. All rights reserved. T