Replacing the twin towers: a wind and a prayer

I must've missed the plans for what should replace the twin towers -I had rather hoped they would go for a memorial but what they seem to be looking at isn't bad. The article highlighted here shows a picture of the plans and outlines a radical couple of ideas: one that they have a wind turbine on the building to generate c.20% of the energy for the tower. The second is to put prayers for peace on the turbine blades in a way remniscent of Tibetan prayer wheels.

Hurrah for the turbines; though, can't they up the renewable contribution to energy needs? [photovoltaics ought to be able to contribute heavily].

I don't think that prayer actually works that way [people pray -I don't think we can automate it; it requires an engagement of who we are with as-much-as-we can-grasp of-Who-God-is; but perhaps if we really are shallow and unconcerned then perhaps automated praying is a good idea] but as an artistic call to prayer and a corporate expression of hope it is pretty good. I'm just wondering how they will handle all the issues around plurality of faith and secularity of public life in USA....