15 the difference is about 10 watts w per regular panel 270 w mono.
Differentiate between solar panel and solar cell.
The solar cells are actually contained within the solar panels with each part playing a specific role within the larger system which is called a photovoltaic system.
The main difference between the two technologies is the type of silicon solar cell they use.
All solar cells have both n type and p type with the great majority having one surface n type and one surface p type.
The difference between solar cells and solar panels producing electricity for your home or business is a function of solar cells and solar panels working together.
Space areas between the solar cells.
Monocrystalline solar panels have solar cells made from a single crystal of silicon while polycrystalline solar panels have solar cells made from many silicon fragments melted together.
It is the junction between the n and the p type regions that creates the step in the energy levels that leads when illuminated to the 600 mv potential difference between the electrons entering the p type layer and leaving the n type layer.
A cell on its own doesn t produce much power and a number of cells together need the protection and stability that the panel offers.