That'll change before long.
This has potential to be a seriously revolutionary technology. Houses, schools, even vehicles could run from this -- and they will, since it's 1/3rd the cost of coal.
One big application I can see is in air conditioning. A roof-full of this stuff could probably run a decent A/C unit, plus perhaps charge batteries for night-time A/C use. Say so-long to those "power emergencies" that seem to accompany every heat wave these days....