Many people said the usage of solar cell can reduce the cost overall, but does anyone agree with me that it actually cost a lot to operate a solar cell system?
Disagree, because you should see it in a different way.
The solar cell will cost less in long run because the sunlight is considered to be an infinite resources that can be used forever.
The reason why people said that is because the solar cell is using the sunlight, which is a free resources.
It cost less in terms of the energy waste.
Yes, I agree with you in this way because it is true that operating the solar cell system cost a lot.
