Study of the promotion practices of residential PV systems and their difussion scenarios from a consumer protection perspective

这项研究的目的是双重的。第一个目标是阐明住宅光伏系统风险信息对潜在系统购买者动机和可持续运行维护的影响。第一个目标强调更多地关注系统用户的利益，以“保护消费者”，而光伏系统供应商的观点迄今为止在政策和研究讨论中都占主导地位。第二个目标是根据日本每个地区的特点，找出住宅光伏系统如何扩散的可能方案。在东日本大地震和随之而来的福岛核事故之后，由于事故的间接影响，那里的人口减少已经加速，对此国家给予了认真的关注。另外两个地区，Kouchi和神奈川，被确定和调查，以比较每个地区光伏系统渗透的状态和情景。

The objectives of this study were twofold. The first goal is to clarify the influence of the risk information of residential photovoltaic (PV) systems on the potential system purchasers' motivation and on their sustainable operation and maintenance. The first goal was emphasized to pay more attentions to the systems' users benefits for "consumer protection" while the PV system suppliers' viewpoint have been dominant in both policy and research discussions so far. The second goal was to figure out possible scenarios of how residential PV systems could diffuse based on the characteristics of each region in Japan. Careful attention was paid to the state that after the Great East Japan Earthquake and the consequent nuclear power accident in Fukushima, depopulation there has been accelerated due to the indirect influence of the accident. Two other regions, Kouchi and Kanagawa, are identified and investigated to compare the states and scenarios of the PV system penetration in each region.