OK, I'll humor you: So how would you go about getting people to install hydrogen fuel cells if subsidies and tax breaks are off the table?
The main issue here is that solar panels are not yet cost effective (or energy neutral) -- not whether or not we believe in the technology. To make progress you need to get the ball rolling by creating a market so that you can fund development and gather practical experience. So the question remains: what mechanism is the appropriate mechanism for stimulating the necessary development?
Spare wind/wave energy can then be stored as hydrogen and used as fuel for both aplications.