This paper analyzes the influence of certain factors on the demand and supply of solar modules by employing the fully modified ordinary least squares method using Japanese data. Our regression analysis shows that interest rates and money supply (M2) significantly impact the solar photovoltaic module supply, indicating that lower interest rates and more funding channels for the renewable energy sector will increase solar photovoltaic module production. Based on this finding, the paper concludes that, for Japan to increase its energy self-sufficiency rate, the Government of Japan should implement green financing policies, providing renewable energy business owners with a wider variety of funding channels with lower interest rates, and ultimately invigorating investments in solar photovoltaic installation.

本文利用日本数据，采用完全修正的普通最小二乘法，分析了某些因素对太阳能电池组件供需的影响。我们的回归分析表明，利率和货币供应量（M2）对太阳能光伏组件的供应有重大影响，这表明较低的利率和可再生能源行业的更多融资渠道将提高太阳能光伏组件的产量。基于此发现，本文得出结论，为提高日本的能源自给率，日本政府应实施绿色融资政策，为可再生能源企业所有者提供更低利率的更多融资渠道，并最终大力投资太阳能光伏装置。