Solar thermal panels are a type of solar panel that uses energy from the sun to create hot water for your home. The technology behind them is older and they tend to be less common than their electricity generating cousins.
Could you run your home using solar thermal to provide all your hot water? Honestly the answer is “it depends”. Solar thermal relies on heat generated from the sun, so if you have high hot water demands in the middle of the day and you use solar thermal then sure, you could get most of your hot water this way.
Solar thermal works great in commercial building for this reason, since the staff tend to go home at 5pm, meaning there is little to no hot water demand in the evening for instance. However, your system is generally designed to provide only as much as you’ll use, so you could end up with an overheated system if you aren’t careful and it is producing more heat than it can dissipate.