I've always thought fuel cells would be a good option for extreme northern and southern communities.
Solar is nice and all, but less useful the further you are from the equator. Whitehorse Yukon (60.7^ north latitude), for example, has a shortest day of less than 6 hours. Also, winter sun is low in the sky passes through a lot of atmosphere to reach your solar panel, so I imagine efficiencies would be sub-optimal.
But if you could use solar all summer to produce hydrogen that your fuel cell could run off all winter, I think you might be on to something. Remember 6 hours of daylight in December means 18 hours of daylight in June (when you're using little if any lights and heat)
I just don't know if the inherent energy costs of splitting water vs energy gained in a fuel cell would let this be a viable idea. And I wouldn't want to think about paying for such a system.