Techno-Economic, Predictive Modeling, and Demand Response Analysis of a Renewable Energy-Based Microgrid for Residential Applications
This study develops a grid-connected solar PV–biogas microgrid for a five-story residential building in Rajshahi, Bangladesh, optimized using HOMER Pro. Among six configurations, the optimal configuration, integrating solar PV and a biogas generator, achieves a 59.4% renewable fraction, r...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10931125/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | This study develops a grid-connected solar PV–biogas microgrid for a five-story residential building in Rajshahi, Bangladesh, optimized using HOMER Pro. Among six configurations, the optimal configuration, integrating solar PV and a biogas generator, achieves a 59.4% renewable fraction, reducing CO2 emissions by 46% and lowering the cost of energy to <inline-formula> <tex-math notation="LaTeX">${\$}$ </tex-math></inline-formula>0.0306/kWh. The system’s net present cost is <inline-formula> <tex-math notation="LaTeX">${\$}$ </tex-math></inline-formula>46,813, with an annual operating cost of <inline-formula> <tex-math notation="LaTeX">${\$}$ </tex-math></inline-formula>1,187. It generates 31,168 kWh/year from solar PV and 3,040 kWh/year from biogas, with grid purchases and sales of 21,951 kWh/year and 13,411 kWh/year, respectively. Predictive modeling (<inline-formula> <tex-math notation="LaTeX">$R^{2} = 1.0$ </tex-math></inline-formula>) enhances power estimation accuracy. MATLAB-based stability analysis confirms seamless voltage and frequency integration. A demand response strategy achieves 2,730.44 kWh/year savings, reducing non-renewable reliance. The analysis results show the microgrid’s high reliability, with negligible Energy Not Supplied (ENS) is <inline-formula> <tex-math notation="LaTeX">$4.31\times 10^{-14}$ </tex-math></inline-formula> kWh and an almost zero Loss of Power Supply Probability (LPSP) is <inline-formula> <tex-math notation="LaTeX">$1.06\times 10^{-18}$ </tex-math></inline-formula>, indicating stable and uninterrupted power supply. Sensitivity analysis identifies solar irradiance as the dominant cost factor. The results establish a scalable, cost-effective model for residential renewable microgrid adoption globally. |
|---|---|
| ISSN: | 2169-3536 |