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トリニダード・トバゴ住宅部門におけるカーボンフットプリント削減のための太陽エネルギー導入

Adoption of solar energy to reduce carbon footprint for the Trinidad and Tobago residential sector (原題)

Marlon Farmer, Dillon Ramsook, Sharona Mohammed, Donnie Boodlal, Rean Maharaj, David M. Alexander

Journal of Smart Science and Technology📚 査読済 / ジャーナル2026-09-30#再生可能エネルギーOrigin: Global経営インパクト: コスト削減対象セクター: power
DOI: 10.24191/jsst.v6i2.161
原典: https://doi.org/10.24191/jsst.v6i2.161

🤖 gxceed AI 要約

日本語

トリニダード・トバゴの住宅部門を対象に、HomerProで太陽光(PV)システムを設計・最適化し、補助金の有無別の電力料金感度分析を行った。現行の補助料金では経済性が乏しいが、0.15USD/kWhで10%、地域平均の0.22USD/kWhで36%の再エネ普及が成立し、世帯CO₂を年422kg削減できる。政策・金融枠組み次第で住宅エネルギー転換が可能と示す。

English

This study designs and optimizes a residential PV system for Trinidad and Tobago using HomerPro, testing sensitivity to subsidized and unsubsidized electricity rates. At current subsidized rates renewables are uneconomic, but viability emerges at 0.15 USD/kWh (10% penetration) and 0.22 USD/kWh (36% penetration, 422 kg CO2 saved annually per household). Targeted policy and financing are key to residential energy transition.

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

日本とは制度・料金体系が異なるが、住宅用太陽光の補助金依存と料金感度という論点は、FIT後の日本や卒FIT世帯の自家消費・PPA検討に示唆を与える。島嶼国特有の化石燃料依存と再エネ導入障壁は、日本の離島・地域電力モデルとも比較可能。

In the global GX context

Adds empirical evidence from a fossil-fuel-dependent SIDS on how electricity tariff levels determine residential PV viability, complementing global decarbonization pathway literature. Relevant to just-transition and subsidy-reform debates in both SIDS and developed markets.

👥 読者別の含意

🔬研究者:住宅PVの経済性が料金水準に強く依存することを示す感度分析の一事例として参照可能。

🏢実務担当者:自家消費型太陽光やPPAの投資判断において、電力料金と補助金の前提が回収性を左右する点を確認できる。

🏛政策担当者:住宅再エネ普及には補助金設計と料金改革の組み合わせが不可欠であることを示唆。

📄 Abstract（原文）

Climate change poses significant risks globally, particularly for Small Island Developing States (SIDS) such as Trinidad and Tobago (TT), which are highly dependent on fossil fuels for power generation. The country emits substantial greenhouse gases, with power generation accounting for 27% of total carbon dioxide (CO₂) emissions. Residential electricity consumption accounts for approximately 31% of this demand. This figure has grown due to post-COVID-19 shifts in household energy use, such as remote work, online education, increased home-based business, and medical operations. These changes have heightened the need for reliable and sustainable energy sources. This study aims to design, optimise, and evaluate a renewable energy (RE) system suitable for domestic households in TT using photovoltaic (PV) technology. An annual energy consumption profile of 15,739 kWh with associated CO₂ emissions of 9,947 kg was used as the base case in the HomerPro software. Sensitivity analyses were conducted on various subsidised and unsubsidised electricity rates, including 0.05, 0.12, 0.22, and 0.35 USD per kWh, assessing Net Present Cost (NPC), Levelized Cost of Energy (LCOE), operating cost, and annual CO₂ emissions. The results indicate that at current subsidised and modest unsubsidised rates, RE systems are not economically favourable. However, at 0.15 USD per kWh, a 10% RE penetration becomes viable. When modelled at the regional average unsubsidised rate of 0.22 USD per kWh, renewable integration becomes more cost‑effective, achieving a 36% penetration and reducing household CO₂ emissions by 422 kg annually. These findings highlight the potential for economically and environmentally sustainable residential energy transitions through targeted policy and financial frameworks.

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