Volume 55

Towards Green Transformation to Achieve Hitachi Zero-Carbon City Vision for 2050 Yukiko YOSHIDA, Yujiro HIRANO

Abstract

The goal of concurrently addressing green transformation (GX), in this study, we aimed to reconcile exploring regional optimization in smart grids and renewable energy variability in Hitachi, Japan. The breakdown of CO2 emissions among Hitachi City’s sectors was estimated because of the lack of detailed data in the Ministry of Environment’s Municipal Emissions Carte. To foster GX, solar power generation using renewable energy are unstable because they are affected by the weather, and depending on the scale of installation, EVs are equipped with storage batteries, and depending on the time of day, they can be charged as a buffer for surplus electricity from renewable energy. If Hitachi City were to install about 1,000MW of solar panels, it could become a zero-carbon city by 2050.

Keywords GX, Zero-Carbon City, Energy consumption, EV, Local government