Feasibility and techno-economic analysis of stand-alone and grid-connected PV/Wind/Diesel/Batt hybrid energy system: A case study

Energy Strategy Reviews

Majed A. Alotaibi¹  Pronob Das²  M.S. Islam³  Md Alamgir Hossain⁴  Sajal K. Das⁴  Barun K. Das⁴ 

[1] Corresponding author. Department of Mechanical Engineering, Rajshahi University of Engineering &Technology (RUET), Rajshahi, 6204, Bangladesh.;Department of Electrical Engineering, College of Engineering, King Saud University, Riyadh, 11421, Saudi Arabia;Department of Mechanical Engineering, Rajshahi University of Engineering and Technology, Rajshahi, 6204, Bangladesh;

关键词: Renewable energy;    Cost of energy;    Emissions;    Grid-integration;    Stand-alone;   

DOI  :  

来源: DOAJ

【 摘 要 】

In this study, the economic and environmental benefits of stand-alone and grid integration are thoroughly analyzed with different system configurations of a PV/Wind/Diesel/Battery based hybrid energy system (HES) for five different climatic regions using hybrid optimization model for electric renewables (HOMER). A detailed techno-economic study of optimized hybrid systems is further examined by integrating the grid-connected option. The environmental benefits of HESs are discussed. The sensitivity of various sell-back price to the national grid is also investigated. Additionally, the barriers and opportunities of installing such projects in the off-grid regions are discussed. Results indicate that the cost of energy (COE, $/kWh) and the net present cost (NPC, $) of the stand-alone hybrid PV/Diesel/Battery for the Rajshahi region are slightly lower compared to other areas, considering the cost and environmental emissions. The same system in Chattogram shows great potential both financially and environmentally, over the other climatic zones. The grid-connected HES with the sell-back option offers significant cost-benefits (0.07$/kWh), even over the grid tariff (0.10$/kWh). Similar revenues can be attained with the grid-connected PV/Battery-based system as substantial amount of excess energy could be supplied to the grid facilities. In the grid integrated HES, around 45,582 kg-CO2/yr could be saved compared to grid only system, whereas this amount is 32,905 kg-CO2/yr over the stand-alone hybrid PV/Diesel/Battery one.

【 授权许可】

Unknown