In everyday practice there are only a few minor differences between the two types of solar cells. In central Europe practically both types generate the same amount of power when comparing same performance panels.
What influences the cost of solar panel?
The cost of solar panel varies greatly and determined in part by its output capacity (in watts) the physical size the brand the durability or longevity (or warranty period) and any certifications the solar panel might have. Choosing a solar panel on price alone is not wise, as it may not be suited to the area where you wish to install it, may not have the necessary certifications to quality for government incentives or provide the performance required to assist economic payback.
The efficiency of an inverter is measured by how well it converts the DC electricity into AC electricity. This usually ranges from 95% to 97,5% for most models. Inverters are sized according to the power (watts) they can supply.
Obviously, the more efficient the inverter the better - as less electricity will be wasted as heat during the conversion from DC to AC.
While the inverter efficiency claimed by a manufacturer may be high, in reality it may not be. The only way to be sure you are buying quality is if the inverter has real world examples of the performance of their equipment, validated by independent third party testing.
It is important to ensure that your grid connect inverter complies with Hungarian Standards. Ask an accredited installer to provide proof that an inverter meets Hungarian standards.