Ok I will stick my neck out and be honest with you.
I hope that is only steem coming out the chimney and not greenhouse gas.
Sorry I just had to say that.
Ok seriously.
I am no graphic designer, howerver the one thing that really makes a good logo (to me) is simplicity in its design.

I like your Logo is ok, However if it was small, say like it would be on a letter head for example, I feel it might be hard to make out the word Grid, it's just a bit to busy for me.

Take EKs logo for an example, its simple but easy to identify, no matter how small it is.
Mercedes benz and for that matter all the car maker have very basic but unique which are also easy to identify.

Please take this as it is ment to be, just my first glance impression.

I do beleave it take a person with some big ball to make/design something and then ask the world,
What do you think.
For that I am proud of you for being that person.
Well done mate.