We’re pretty happy that a 392 MW solar concentrating plant is currently under construction in the Mojave Desert to supply enough juice to power 140,000 homes by 2013. But we’re even more excited to learn that BrightSource put out a request for proposals to architects and designers to come up with a better, lighter, stronger, faster (ok, not faster), power tower for their three solar energy plants. Our friends at RAFAA Architecture & Design in Zurich sent us their proposal for two options that make use of prefabricated modular parts and have a strong focus on the total lifecycle impact. Not only does RAFAA want to build a better and more sustainable solar energy tower, but their designs are very easy on the eyes too!