The problem
Oda installs solar panels and batteries on homes in Portugal. Every system came with a monitoring page full of charts, and almost nobody opened it after the first week.
Owners wanted to know one thing: am I using my own power, and what should I do differently?
What we built
- One number for today. How much power the home has used, and how much of it came from the roof.
- One suggestion a day. When to charge the car or run the heat pump, based on tomorrow's forecast and the battery.
- The bill, as it grows. What this month has cost so far, against the same month last year.
People do not want a dashboard for their house. They want to be told when to plug in the car.
How it went
This was our shortest project: twelve weeks from the first call to two hundred homes. We wrote the daily sentence by hand for the first month to learn which ones people acted on, then taught the app to write them.
