Does the solar thermal insulation function require electricity?

Solar insulation is divided into solar water tank insulation and pipe insulation. Solar water tank insulation does not require electricity, and the insulation performance relies on the polyurethane insulation between the inner and outer shells of the water tank. However, there are three types of pipe insulation: one is for draining the pipe, which does not require electricity, the other is for the antifreeze cycle, which does not require electricity, c 'that is to say there is electric heating. tape on the outside of the pipe, which consumes electricity. Each meter of electric heating tape is about 15W. The commonly used heating tape is a self-limiting temperature heating tape, which consumes limited power and can be maintained in a normally open state.