I believe they are not serious... looks liek they only want to be the 1st to do something like that.... they are more interested in how beautiful the thing looks rather than basing the whole thing on Solar Power...

I believe the Solar Power used there is going to be only about 30% of the Electricity consumed.

I mean how can they build a "Solar" building and put Solar panels only on the terrace and not on the Building sides... It is obvious that the sides that surround the building... have the greater Surface Area...

And they could have used Electric Cars and Electric Buses... something which Doha has started to use ;-)