トピックス TOPICS

Do Smart Thermostats + Nudges Yield Greater Energy Savings?

Smart thermostats, combined with multiple temperature sensors, and home energy management systems (HEMS) are experiencing rapid growth worldwide. Meanwhile, behavioral science-based programs, such as energy feedback and energy saving tips, have been also gaining attention. Can the two strategies work together and save even more energy? An experimental program was undertaken in Sapporo, Japan – a climate similar to Minnesota – to assess the joint impact of these two strategies.
One hundred households participated in the program. The first group received a tablet with an energy saving app and a HEMS control system, whereas the second group received only the tablet with the app. The app was designed to stimulate behavioral change through recommendations regarding indoor temperature and humidity settings. It also gave energy consumption feedback and energy saving tips (utilizing “nudges” such as social norms and prompts). The HEMS control system was designed to automatically control heating based on schedules configured in advance.
The impact of the different strategies was evaluated with a randomized control trial (RCT). Energy consumption data 1 year after the interventions indicates that the combined treatments yielded about 3.5% reduction compared to the control, while the app alone achieved about 2.4% reduction in winter. We also found out that the usage of the app differs between the two groups, suggesting that the app results in different levels of reduction with and without the combination of the HEMS control system.

論題
Do Smart Thermostats + Nudges Yield Greater Energy Savings?
著者
Sho Hirayama, Takahiro Tsurusaki, Mikiko Nakamura, Ruo Lin Yaw, Jun Kikuchi and Ayaka Tokuta
掲載誌
2018 Summer Study on Energy Efficiency in Buildings, August 2018

関連資料

同じカテゴリの最新記事

環境省「令和5年度 家庭部門のCO2排出実態統計調査」の結果(確報値)公表について

環境省では、家庭部門の詳細なCO2排出実態等を把握し、地球温暖化対策の企画・立案に資する基礎資料を得ることを目的に、平成29年度(2017年度)から... [続きを読む]
論文

Questionnaire-based Analysis of Psychological Characteristics, Office Environment, and Thermal Adaptation-Related Behavior of Office Occupants in Japan

In Japan, where commercial and public sectors account for 54% of energy consumption, this study explores the relationship between office occ... [続きを読む]
論文

アンケートに基づくオフィスビルでの環境意識と省エネ行動の関係分析

住宅・建築分野は、最終エネルギー消費量の35%、CO2排出量の38%を占めている(2020年度)。政府は国民や企業に省エネを呼びかけており、... [続きを読む]
論文

Analysis of the relationship between environmental awareness and energy saving behavior in office buildings Behavior- through the Energy Awareness – Behavior Questionnaire

Energy conservation and decarbonization in the residential and building sectors in Japan in fiscal 2020, accounting for 35% of final energy ... [続きを読む]
論文

Analysis of the relationship between environmental awareness and energy saving behavior in office buildings through statistical modeling of the energy awareness-behavior questionnaire

In Japan and other countries abroad are accelerating their efforts in various fields toward carbon neutrality, which is the goal of achievin... [続きを読む]

住環境計画研究所

営業時間 9:30 – 17:30
TEL:03-3234-1177
お気軽にお問合せください