Fix grammatical errors: Before setting out for possible solutions for our energy problem, rigorously defining the problem itself is indeed necessary so that we could make sure that we are always in the right direction and know what properties the right solutions should possess.
The problem is not a simple one, but a complex one. The problem is that we are not sure what the right solution is, and we are not sure how to find it.
The problem is that we are not sure what the right solution is, and we are not sure how to find it.
The problem is that we are not sure what the right solution is, and we are not sure how to find it.
The problem is that we are not sure what the right solution
The problem is a problem of the first order.
The problem is a problem of the second order.
The problem is a problem of the third order.
The problem is a problem of the fourth order.
The problem is a problem of the fifth order.
The problem is a problem of the sixth order.
The problem is a problem of the seventh order.
The problem is a problem of the eighth order.
The problem is a problem of the ninth order.
The