Definitely uncomfortably close to "1.0", though the power level would be no problem if the collection and dissipation weren't being done on Earth.

(If I were doing the numbers more seriously, I'd start by looking at total solar input power and total radiative heat dissipation capacity. To look at a silly but physically sound possibility, however, it is possible to dump substantially more heat from a planet than can be radiated from it by a black surface at its ambient temperatures. The trick, of course, is refrigeration.)

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