As I asked someone else earlier, give me the requirements and I will give you a solution. Obviously, this is a much bigger project than a small pond would be. A generator is your best option. A charger run off the generator and charging a battery for lights would be good.
As you mentioned. You dont know anything about electricity. Now that you have hinted that you have big boats and big power requirements, go with the generator. Obviously, the solar company in N Ar knew you had huge power requirements, as compared with most Pond Boss forum readers.
Doc, go with the thingy with the doo-hicky inside.