Um what? What are you trying to say siberiantiger?
I'm trying to say that if you want to turn on a light-bulb powered by a battery, you have to make a closed circuit between the battery's "+" and "-" poles. Current will the flow from "+" to "-" and on its way make work in your light-bulb, lighting it up. If you break your circuit, there's no way for the current to flow through, and no energy can be drawn from the battery.
Imagine water reservoir (upstream of a dam) is your wire attached to "+", and the river flow downstream is your wire attached to "-" of the battery. Your light bulb is the hydro power plant with all the consumers attached to it (who dissipate energy). Your battery in this case is actually Sun, which makes water rise from seas to intra-continental areas and on top of mountains in form of rain and snow.
If you let your current flow, by opening the water locks, you get the stream you can use to draw energy from. If you break the circuit in one way or another, no useful work can be done then.
(if you remove your dam and just put your water wheel into river, that might work, but power output is really tiny)
Straight analogy here.