Abstract
The energy production in Pakistan is highly dependent on fossil fuels. Consequently, the least grid power with maximal renewable energy must be utilized to meet load demand. It can only be accomplished by medium- and small-scaled power consumers through installing hybrid systems on their sites. The generated excess electricity can be injected into national grid through net metering (NM) for financial assistance. The main objective of study is to design grid-connected hybrid (PV-wind) microgrid system using NM facility. The site selected for proposed work is an academic building of Mehran University of Engineering and Technology, Pakistan. The meteorological data collected from NASA were placed into HOMER to evaluate availability of RE sources. The load profile of building was calculated to measure energy consumption for 24 h/day. The on-grid PV-wind hybrid system has been analyzed before and after using NM facility. The simulation results before NM have obtained NPC, COE, payback period and CO2 as 125,158 $, 0.0700 $/kWh, 2.86 years. and 20,175 kg/years, respectively. These same constraints by using NM facility have been estimated as 50,521 $, 0.0238 $/kWh, 2.79 years and 14,733 kg/years, respectively. The NM strategy is most preferable due to its feasible outcomes and accomplishment of distinct energy demands adequately.