省電費累計：台幣2,500圓+100圓=2,600圓
https://tw.news.yahoo.com/%E7%B4%90%E7%B4%84%E7%B7%AC%E8%A3%94%E5%B0%91%E5%B9%B4%E8%A2%AB%E6%AE%BA-%E6%97%8F%E4%BA%BA%E6%89%
https://www.storm.mg/article/5050213
https://www.hk01.com/%E5%8D%B3%E6%99%82%E4%B8%AD%E5%9C%8B/1034247/2%E5%85%A7%E5%9C%B0%E9%AB%98%E7%AE%A1%E8%8F%B2%E5%BE%8B%E8
https://www.msn.com/zh-tw/news/world/%E6%9D%B1%E4%BA%AC%E5%AB%96%E5%AE%A2%E5%85%A8%E7%90%83%E5%8C%96-%E7%AB%99%E5%A3%81%E6%A