Bit of a random one, but a wide spread of experience here so thought I'd ask.
Late last year, I had a solar system put in with a smart power meter and a wifi inverter. This means I can have a look on my phone and work out when I'm using power, how much I'm sending to the grid etc. The bills are getting smaller, which I'm happy about, particularly as the wife and kids are at home during the day, so using the 'free' power rather than drawing off the grid.
Since I started looking at the data, something has been chewing my power up for a few hours between around say 3am and 5am. This isn't every day, or at the same time every day. My first thoughts were that it was the water heater coming on when the temperature dropped below a certain level, so I put a timer switch on there but it doesn't seem to be that.
I don't have anything that should be sucking power, other than the standard household appliances that would be on all night like the fridge. Everything else is either off or on standby.
Anyone any ideas, other than my neighbours stealing my power for a hydroponic set-up?