Journal of the Japan Institute of Energy
Online ISSN : 1882-6121
Print ISSN : 0916-8753
ISSN-L : 0916-8753
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Table of Contents
Review
  • Yuuki NAKANO, Hiroki HONDO
    Type: Review
    2021 Volume 100 Issue 11 Pages 254-262
    Published: November 20, 2021
    Released: November 30, 2021
    JOURNAL FREE ACCESS

    The provision of information on energy and environmental problems has conventionally been based on the premise that people process information deliberatively and logically. However, it has been pointed out that the conventional methods have limitations, and it is necessary to turn attention to automatic and intuitive information processing. This paper focuses on three information formats, namely, narrative, vivid, and episodic information that can induce automatic and intuitive information processing and aims to examine their potential for use after a cross-sectional review of communication research related to the three formats. Although knowledge about each information format has been accumulated in different fields, it is important to have a bird’s eye view across the fields because there are many common points. The paper classifies the functions of these unconventional information into four categories: motivating processing, inducing simulated experiences, making topics personal, and evoking some emotions. It appears that these functions do not act independently but are interrelated and have different impacts on the receivers from the conventional information. Based on the cross-sectional review, this paper discusses how the four functions of the unconventional information can be utilized in energy communication.

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Original Paper
  • Ryo ABE, Daisuke TOMOFUJI, Takashi IKEGAMI, Atsushi AKISAWA
    Type: Original Paper
    2021 Volume 100 Issue 11 Pages 263-272
    Published: November 20, 2021
    Released: November 30, 2021
    JOURNAL FREE ACCESS

    Recently, the introduction of renewable energy, especially Photovoltaic power generation (PV), has been increasing. On the other hand, it has been pointed out that there might be lack of adjustment capability in the grid system. As a countermeasure, Demand Response (DR) is expected to contribute to the adjustment of supply and demand. The objective of this study is to quantitatively evaluate the reduction of PV curtailment and energy efficiency when distributed energy resources respond to DR, which increases electricity demand when PV generates excess power. Specifically, when PV generates excess power, the cogeneration system is stopped and Air-Conditioning (A/C) heat sources is switched from fuel-based to power-based to increase power demand while maintaining the A/C function. Three types of commercial building were examined, which results were combined with Geographic Information System (GIS) database to estimate regional DR potential in Kyushu electric power tube area and Tohoku electric power tube area. The results imply that DR can utilize more than 40% of the estimated PV curtailment in both regions.

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