1kw wind turbine project

[Nix]

Ok, that's making a lot more sense. So, your turbine is powering your 24v inverter with the battery bank acting as a regulator and back up. When the mains goes down, a manual switch then allows you to isolate the grid and switch to back up both at the same time thereby making sure no mistakes are made. Can't see a problem there.
But where I do see a potential problem is in the dump. Most turbines are designed so that if they don't have a dump load, they can over speed and self destruct ie they must have a resistance load to work against at all times. If your batteries are charged up and the hot water is at maximum, you could damage the turbine without an additional shunt controller at work, unless the turbine has it's own safety brake?

Just curious, how exactly are you heating your hot water when using the battery back up system?