What is the annual energy yield from a solar thermal system?
Every installation is different and every collector brand is made slightly differently so this will affect the annual energy output. In the UK, the Max-Tec series collectors produce around 519kWh per m2. This figure is heat to the heat exchanger allowing for pipe and pump heat losses on the way. This figure is also in relation to the aperture of the collector which is the opening that collects the Suns radiation, not the gross surface area of the solar collector. All quotations come with their own system design and calculations so you will know exactly what you will be getting.
