Repair, weight, suspension and deployment seems like the hardest issues to tackle. The tarp would ideally need to be reflective, like a white roof on modern bu

Repair, weight, suspension and deployment seems like the hardest issues to tackle. The tarp would ideally need to be reflective, like a white roof on modern buildings. The rain issue is the easiest one to solve, since the tarp could be slightly perforated to allow drainage. I wonder if a permanent structure over the lake would be easier than a tarp? Like literally building a roof. Either way the balls seem like a solid approach.