The Energy App That Blamed the Toaster

Emeline downloaded a new home energy app last month. The app tracks how much power each device uses. Every few days, it sends her a small report.

Emeline mengunduh aplikasi energi rumah yang baru bulan lalu. Aplikasi itu mencatat berapa banyak listrik yang dipakai tiap perangkat. Setiap beberapa hari, aplikasi itu mengiriminya laporan singkat.

One morning, the app sent Emeline a strange alert. "Your toaster used a lot of power at three a.m.," it said. Emeline frowned and read it again.

Pada suatu pagi, aplikasi itu mengirim peringatan yang aneh kepada Emeline. "Pemanggang rotimu memakai banyak listrik pada pukul tiga pagi," tulisnya. Emeline mengerutkan kening dan membacanya lagi.

"I never use the toaster at night," she said. She turned to her roommate, Rania. "This app is probably wrong," she said.

"Aku tidak pernah memakai pemanggang roti di malam hari," katanya. Ia menoleh kepada teman sekamarnya, Rania. "Aplikasi ini pasti salah," katanya.

Rania looked over Emeline's shoulder at the phone screen. "That's strange," she said. "Let's check the toaster together."

Rania melihat layar ponsel dari balik bahu Emeline. "Aneh juga," katanya. "Ayo kita periksa pemanggang rotinya bersama-sama."

They walked into the kitchen and looked at the toaster. It sat cold and unplugged on the counter. "It's not even plugged in," Emeline said. "The app made a mistake."

Mereka berjalan ke dapur dan melihat pemanggang roti itu. Benda itu dingin dan tercabut di atas meja dapur. "Dia bahkan tidak dicolokkan," kata Emeline. "Aplikasinya salah."

Rania thought for a moment. "Wait," she said. "My fish tank heater plugs into that same outlet."

Rania berpikir sejenak. "Tunggu," katanya. "Pemanas akuarium ikanku dicolokkan ke stopkontak yang sama."

"The app probably reads the outlet, not the toaster," Emeline said. "It just has the wrong label."

"Mungkin aplikasinya membaca stopkontaknya, bukan pemanggang rotinya," kata Emeline. "Hanya saja labelnya salah."

They opened the app together and found the outlet's settings. Emeline changed the outlet's label to fish tank heater. The next report showed the correct name.

Mereka membuka aplikasi itu bersama-sama dan menemukan pengaturan stopkontak tersebut. Emeline mengubah label stopkontak itu menjadi pemanas akuarium ikan. Laporan berikutnya menunjukkan nama yang benar.