If your solar panel is only cracked, you can try to repair it with silicone sealant or epoxy. These materials can be found at your local hardware store.
[pdf] For a photovoltaic glass transmittance of 40%, the highest photovoltaic power generation efficiency is 63%, while the average efficiency is 35.3%.
[pdf] A balcony solar power system is a small for generating electrical power. It consists of one or more solar modules, an inverter, a connection cable and a plug for connecting to the final circuit in the network of an end consumer. The balcony, carport, garage roof or terrace are often used as installation locations. The electricity generated can be used im.
[pdf] A balcony solar power system is a small for generating electrical power. It consists of one or more solar modules, an inverter, a connection cable and a plug for connecting to the final circuit in the network of an end consumer. The balcony, carport, garage roof or terrace are often used as installation locations. The electricity generated can be used imm.
[pdf] 
