I see some are unfamiliar with solar evacuated. I thought I’d post a couple of graphs showing the production difference…
Some of the main advantages of solar thermals over PV:
Price: price per kW is significantly cheaper. You can buy 1kW of solar thermals for less than $300.
Efficiency: in a limited space you can get more energy out of them per square metre, 2-4 times more than PV
Storage systems: much cheaper and very easy to maintain.
Here’s the solar production of my ~3kW set from yesterday:
From solar thermals, orientation SSE
Here is the solar production of my ~3kW of solar panels, orientation 120 degree arc pattern
Here is a graph of my heatpump cycle for the last 24 hours under current conditions ( -10°C during the day, -20°C at night). My heat buffer tanks and heat pump do domestic hot water and heating for my house.
At current weather condition of sunny and average winter temps of ~ -15°C to make all my hot water needs and house hold heating, I used 5 kW in a day from from heat pump, the rest was created by my evacuated solar panels, which probably equates to about 87 - 94% less energy than a house of equal size construction for those heating purposes.
If you want more info, you can view my blog that I quickly set up yesterday to give more detail on my projects https://sash991.wixsite.com/mysite/blog