In this research, we examine the socioeconomic impact of carbon pricing (CP) mechanism-related energy policies under the technical constraints of Japan. For this, we have created the Inter-Regional Input–Output Table for a Next Generation Energy System (IONGES) in 2030, considering these technical constraints. Namely, we created three Inter-Regional IONGESs with different assumptions for the wide-area operation of the power grid. The results show that the technical constraints of the power grid influence the interregional distribution of renewable energy. Top ten regional renewable energy sectors (TOP10), which has a large production scale, account for approximately 54% of renewable energy generation, which was found to be biased. From the viewpoint of consumers in each region, we analyzed the share of the electricity cost required to support their consumption. If the CP mechanism is implemented under the technical constraints of the current power grid, consumers in each region will be impacted unequally. However, it was found that such inequality will be solved under the wide-area operation of the power grid.

在这项研究中，我们研究了日本技术约束下与碳定价 (CP) 机制相关的能源政策的社会经济影响。为此，考虑到这些技术限制，我们创建了 2030 年下一代能源系统 (IONGES) 的区域间投入产出表。也就是说，我们针对电网的广域运行创建了三个具有不同假设的区域间 IONGES。结果表明，电网的技术约束影响了可再生能源的区域间分布。生产规模较大的前十大区域可再生能源行业（TOP10）约占可再生能源发电量的54%，被发现存在偏差。从各地区消费者的角度来看，我们分析了支持他们消费所需的电力成本份额。如果在当前电网的技术约束下实施 CP 机制，各个地区的消费者将受到不均等的影响。然而，人们发现，在电网大面积运行下，这种不平等将得到解决。