This shape-shifting home that follows the sun throughout the day in order to combat one of the main design flaws associated with fixed solar panels was designed by Portugal-based firm Casas Em Movimento.
The unique design allows the home to produce a five times more energy than it uses, making it a revolutionary example of eco-friendly architecture.
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References: casasemmovimento
& fastcoexist
Yes it is nice looking but I do not think that it is cost-effective?
Not really though. Just the rotator arm can cost up to 50 grands.