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Simulation and Optimization of Three Photovoltaic Systems for the Application to Residential use in Trinidad and Tobago

トリニダード・トバゴにおける家庭用3種類の太陽光発電システムのシミュレーションと最適化 (AI 翻訳)

Looknanan S, Cumberbatch E, Beepat K, Maharaj R

Research Squareプレプリント2026-06-12#再生可能エネルギー経営インパクト: コスト削減対象セクター: power回収年数ヒント: 3年
DOI: 10.21203/rs.3.rs-9998507/v1
原典: https://doi.org/10.21203/rs.3.rs-9998507/v1

🤖 gxceed AI 要約

日本語

トリニダード・トバゴの住宅用に3種類の太陽光発電技術（多結晶シリコン、CIGS、球状シリコン）をHOMER Proでシミュレーションし、オフグリッドと系統連系の両方で最適化。オフグリッドでは0.727kWのp-Siシステムとディーゼル発電機の組み合わせがLCOE 0.423ドル/kWhで最適、CO2排出量も従来のディーゼル単独より低減。系統連系では9.45kWのp-SiシステムがネットメータリングでLCOE-0.097ドル/kWh、3年で投資回収可能。政策の重要性を指摘。

English

This study simulates and optimizes three PV technologies (poly-Si, CIGS, spherical Si) for residential use in Trinidad and Tobago using HOMER Pro, considering both off-grid and grid-connected scenarios. The optimal off-grid system (0.727 kW p-Si with diesel generator) achieves LCOE of $0.423/kWh and reduces CO2 from 2007 kg/yr to 776 kg/yr. The grid-connected system (9.45 kW p-Si) with net metering yields negative LCOE (-$0.097/kWh) and a 3-year payback. Policy recommendations for net metering are provided.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

本論文はトリニダード・トバゴを対象としているが、日本の家庭用太陽光発電の普及策（固定価格買取制度や自家消費モデル）を考える上で、系統連系時のLCOEや投資回収期間の試算方法が参考になる。特に、補助金なしでもNetメータリングが導入されれば経済性が成立するケースは、日本のFIT終了後の市場設計に示唆を与える。

In the global GX context

This paper offers a valuable case study on PV optimization for small island developing states, highlighting how net metering policies can make solar economically viable even with relatively high electricity rates. The 3-year payback for grid-connected systems underscores the importance of policy frameworks for decarbonizing residential energy. The methodology (HOMER simulation) and comparative technology assessment are broadly applicable.

👥 読者別の含意

🔬研究者:Provides a comparative simulation method for PV technologies using HOMER Pro, applicable to other regions.

🏢実務担当者:Demonstrates economic viability of grid-connected PV with net metering, showing 3-year payback and negative LCOE.

🏛政策担当者:Emphasizes net metering and electricity rate structures as critical for residential solar adoption in small island states.

📄 Abstract（原文）

<title>Abstract</title> <p> The main purpose of this research project is to evaluate and optimize three different photovoltaic (PV) technologies namely polycrystalline silicon (p-Si), copper indium gallium selenide (CIGS) and spherical silicon (sph-Si) applied to a residential model. Research was performed to determine the most appropriate software to carry out the simulation and ‘HOMER Pro’ was deemed the best suited. Both off-grid and grid connected scenarios were assessed with the design parameters of each PV technology customized independently within the software from the power values obtained within the 2016 Waterloo dataset to achieve a comparative evaluation of the PV systems. Simulation results revealed some expected outcomes with the winning off-grid architecture being the 0.727kW p-Si PV system connected to the 1.4kW diesel generator, optimized giving a LCOE of US$0.423/kWh. Although this system produced 776 kg CO <sub>2</sub> /year, it was still revealed to be lower than the 2,007 kg CO <sub>2</sub> /year for a complete conventional off-grid equivalent of a diesel generator only. The alternative optimized grid-connected winning architecture consisted of a 9.45kW p-Si PV system tied into the power grid with net metering benefits having a negative LCOE of -US$0.097/kWh with an expedited payback of 3 years, this winning grid-connected system utilized the average regional rate of US$0.35 per kWh which was higher than the average global rates and Trinidad and Tobago’s subsidized and unsubsidized rates. Due to the electricity rates, the application of this renewable energy technology (RET) can be achieved if suitable energy policies are implemented in T&T such as net metering or net billing once the investment prices of the technologies continue to reduce making it more attractive to homeowners. Alternatively, another simulation and optimization analysis can be performed in the future if the unsubsidized cost of electricity ever increases above the US$0.20 per kWh which this project references as the threshold value for future economic consideration. Subsequentially, the use of different photovoltaic technologies with varying efficiencies can be assessed, not limited to the three evaluated within this research project. </p>

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