Dyson sphere is a hypothetical megastructure that completely encompasses a star and hence captures most or all of its power output. It was first described by Freeman Dyson. Dyson speculated that such structures would be the logical consequence of the long-term survival and escalating energy needs of a technological civilization, and proposed that searching for evidence of the existence of such structures might lead to the detection of advanced intelligent extraterrestrial life. Different types of Dyson spheres correlate with information on the Kardashev scale.
Dyson Rings are a variation of the sphere. This will be comprised of rings of varying diameter which will orbit around the sun, collecting vast amount of Solar energy.
Chronicles of Tomorrow: Echoes from the Future 
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