Wait a minute. You laid out the text before coming up with the mark?
Yes, probably not the best way normally but there is a big possibility that different marks could be used depending on its usage so it was better for me to get it so it look balanced on its own without a mark, if that makes sense?
This is what i've got tonight anyway
I've been advised to experiment with other fonts as the logo could be used for a multitude of purposes and i don't know if it will look great at smaller sizes.
The wind turbine image seems to create a lot of empty space so may need repositioning.
err, thanks for all your comments people, they've been very helpful.