seems like the only technique for atmo processing. most of the time these are tuned to microwave, but would be simple to tune to radio frequency for hydroxyl
would also be useful if it had a laser for Alamo type processing at sea level, when seas are big, or in ice pack.
Is also a pretty easy sell. California has a contract for energy in the 2018 time frame, so funding can be found. and it can be generating energy for use till we need to use it for
http://www.thespacereview.com/article/2509/1there are also some newly rediscovered high inclination GEOsynch orbits that can be maintained with a solar sail. You could park these over an artic destination.
Would prob be better to leave it on a polar /full sun orbit tho, and beam the power to one or two sub satts, fitted with lasers or radio dishes. Those would be less costly, and easier to upgrade.