Techno-economic and environmental analysis of renewable energy integration in irrigation systems: A comparative study of standalone and grid-connected PV/diesel generator systems in Khyber Pakhtunkhwa
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View abstract on PubMed
Summary
This summary is machine-generated.The study found that a photovoltaic (PV) system connected to the grid, allowing both energy purchase and sale, is the most cost-effective and environmentally friendly solution for agricultural water pumping in developing countries. This renewable energy approach reduces carbon footprints compared to conventional power sources.
Area Of Science
- Agricultural Engineering
- Renewable Energy Systems
- Environmental Science
Background
- Agriculture relies heavily on water, often pumped using electricity from conventional sources, contributing significantly to carbon emissions.
- A global shift towards renewable energy offers a sustainable solution for electricity generation and environmental decarbonization.
Purpose Of The Study
- To conduct a techno-economic and environmental analysis of different irrigation system configurations.
- To compare standalone and grid-connected systems for agricultural water pumping in a developing country.
- To identify the most optimal renewable energy solution for sustainable irrigation.
Main Methods
- Comparative analysis of standalone and grid-connected photovoltaic (PV) systems across four distinct sites.
- Techno-economic evaluation including Cost of Energy (COE) and Net Present Cost (NPC) over a 25-year lifespan.
- Sensitivity analysis on variables like Grid Power Purchase (GPP) and Global Horizontal Irradiance (GHI).
Main Results
- The PV system integrated with the grid for both energy purchase and sale (PV + G(P+S)) emerged as the most optimal configuration.
- This system achieved low Cost of Energy (COE) ranging from $0.056/kWh to $0.068/kWh and Net Present Cost (NPC) from $7,908 to $34,487 across the studied sites.
- Environmental analysis confirmed a lower carbon impact compared to conventional energy sources.
Conclusions
- The grid-connected PV system (PV + G(P+S)) is a technically, economically, and environmentally superior solution for agricultural water pumping.
- This configuration supports sustainable water management by allowing excess energy to be sold back to the grid.
- The findings provide valuable insights for policy development to promote renewable energy adoption in agriculture.
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