Today is cold and sunny. Last night was -1 deg, and right this moment it's 8 deg. It's mid-July.

I have a 3.9kW solar system, which is 11 panels. Here's what's happening:

• at 10am, the solar is producing 1.8kW (I'll check later, too, at around 1pm which will be peak time for my roof).
• my split system Fujitsu heater is on, set to 22 deg. 
• I don't have a fancy monitoring system, but I do have "Powerpal" which is a (usually) free basic power monitor and app that you can order online.
• my Powerpal shows that my home using ZERO power at the moment (pic below).
• therefore, my electric heating is running for FREE, and I am heating my home for FREE, with 100% power coming from my solar power. 
• today is cold and sunny all day, and I will get FREE solar powered electric heating all day up till around 4pm.
• UPDATE. It's around 1.30pm and the solar is cranking out 2.4kW. This allows me to notch up the heating to 24 deg, still with ZERO power from grid.
• UPDATE. It's nearly 4pm and the sun is fading. I've notched down the heater to 22 deg, and house is a nice temperature, and I've had my home heated for free today. 

Here are some pictures:

The solar at around 1.30pm

My Powerpal app display, showing ZERO power consumption, which means I am getting FREE heating in my home.

NOTE, the power spikes are me making tea and coffee 😀