Yes.
You can add more solar panels to heat the water faster. Solar heating: refers to the conversion of dispersed solar energy into practical hot water via a collector (such as a flat solar collector panel, solar evacuated tube, solar heat pipe and other collection equipment that absorbs the solar energy), then transports the hot water to the Heating end.
Solar cells, also known as "solar chips" or "photovoltaic cells", are optoelectronic semiconductor chips that use sunlight to directly generate electricity. A single solar cell cannot be used directly as a source of energy. As a power source, multiple solar cells must be connected in series or parallel and tightly grouped into components. The assembly of solar panels (also called modulesof solar cells) with several solar cells is the essential part of the solar power generation system and is also the most important part.