My neighbor is a boater and told me about this company's products; really interesting. http://youtu.be/OZ2zrNDD6k4 While a great alternative to a standard generator, they're a little pricey right now. A unit that produces 120 am hours a day is $5,000 and fuel cells (that could last a summer) are $80 each.
Rich & Mary "Everything in moderation, including moderation."
- Oscar Wilde