yES, its true. If you are planning to buy a solar power pack for your home and solar heater then just think for this hybrid panels which can now generate power and also acts as a solar water heater . High temperature reduces power output of solar pv panels. By using those hybrid panels you are going to minimize the heating effect of solar pv panels and increases output from pv panels by transferring its heat to heat the water. For 4 sq mtr of hybrid panels you will get 600 watt power and 120 ltrs of hot water and that is sufficient for a small family…… thats great.