- Solar power panels initial cost is very high, this factor discourage solar electric system to spread widely and rapidly through out the world.
- Cost for solar panels may vary from location to location but estimated cost to run computer with other small electric appliances can cost up to 700 $ to 1000 $. Whereas to lighten up the entire house can cost 15000$ to 25000$ depending on the demand.
- Rural and remote areas which lack in conventional electricity are best suited for solar energy consumption but it solar electric system initial cost higher than using fossil fuels generated electricity.
- One other disadvantage of solar electric system is that they need whole lot of space of implant panels, some times on land and more often of roof top.
- Solar panels are always require to directly face the sun to produce electricity constantly, if panels are not facing sun it will vary in producing watts.
- Since solar cells arrays and modules are exposed directly to the sun, different rays like Ultraviolet rays can slowly deteriorate the surface of the panels, dust, wind, and rain can also effect the over all performance of solar power panels
Solar technology has changed very rapidly in last decay, number of disadvantages of solar electric systems almost faded away. Especially cost factor has dropped a lot in recent times, thanks to government bodies and Green Technology movement