With their current design, according to the university, they can capture around a ton of carbon dioxide for less than 100 kilowatt-hours of electricity. At that rate, for every bit of electricity used to run the scrubber, you're actually capturing ten times as much CO2 as was released to create that electricity in the first place. That means that in terms of emissions, it is efficient… but financially, not-so-much-so. As far as the researchers have reported, the technology is expensive, and not near ready for large-scale development yet. But, it could potentially fill a unique role, taking on that 50 percent of diffuse CO2 emissions that no smokestack extractors will ever be able to keep out of the skies.