Ismail Ajagbe

Date of Award

August 2024

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Energy Engineering

First Advisor

Olusegun S. Tomomewo

Abstract

Severe weather-induced grid power outages pose significant challenges to households in Texas, impacting energy security and resilience. This study assesses the implementation feasibility of a grid-connected, building-integrated solar PV-Battery storage system in rural households of El Paso, Texas, aiming to improve preparedness, mitigate outage impacts, and enhance energy security and resilience in severe weather-prone areas. The study employs system advisory model software to conduct a comprehensive techno-economic and environmental evaluation of an 8.036 kWp PV-Battery system designed to meet a household's daily average energy demand. Simulations confirm key performance metrics, including 88% performance ratio, 2,197 kWh/kWp energy yield, and 25.10% capacity factor. With a $17,697.14 upfront cost, incorporating 5.5% real discount rate and 3.4% inflation rate, the financial analysis shows a $4,476 net present value, 10.1-year real payback period, and a competitive 6.67 ¢/kWh levelized cost of energy. Emissions reduction analysis indicates 168.83-ton CO2 emissions cutback over 25 years compared to conventional grid supply. Sensitivity analysis and comparative studies affirm system robustness and validate results, respectively. Findings indicate the proposed system achieves 82.69% self-sufficiency, generating energy surplus of 82.403 MWh, $13,299.21 total Net Metering/True-Up compensation, and $76,362.02 energy savings over its 25-year lifespan. Beyond the system's demonstrated technical viability, economic advantage, and environmental sustainability, the results and storm-hardening recommendations proffered advocate for the broader adoption of similar renewable energy solutions in comparable settings to enhance resilience against climate-related challenges.

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