Dear Mehmet,

Not really, it is primarily related to the presence of so-called intermittent power sources such as wind and solar (whose production is not controllable). Of course, these power generation sources are renewable energy sources, but not all renewable energy sources (biomass CHP) are intermittent. Capacity mechanisms represent policy instruments that can secure that enough capacity is in the system also during times when there is little wind or sun.

With modern storage facility(batteries) and developed technology for solar and wind farms in thousands of mega watts capacity, it is yes...

capacity is in the system also during times when there is little wind or sun

Are in used in many plants in U.S, Germany and India(10,000MW Dholera Solar)...

interesting topics