At the moment, there are no project sites, no deadlines, no jury and no sponsors to announce, let alone what coming in first place will mean, either receiving a cash prize or a commission or both. But if and when the logistics are properly set up, Land Art Generator Initiative could be a fascinating competition to follow.
From the project statement, emphasis theirs:
The goal of the Land Art Generator Initiative (LAGI) is to design and construct Land Art / Environmental Art installations in the United Arab Emirates that have the added benefit of large scale clean energy generation. Each sculpture will continuously distribute clean energy into the electrical grid with each land art sculpture having the potential to provide power to up to 50,000 homes in the UAE.
How about a frozen desert artificially gouged with wind-damned canyons?
There is a blog, bLAGI, in which you can check for any updates.