We have been working 1,5 years on a hydrogen fuel cell electric generator, which would be perfect for maritime market. It is lightweight, quiet and since it works on hydrogen, emits nothing but water. Not to mention that there are no moving parts, therefore the generator is maintenance free!
Maybe you'd be so helpful to share your thoughts on the product, would it satisfy your needs, do you see any problems with it, etc. Would you see it as part of your gear?
Also, what alternatives are you currently using, heavy batteries, wind generators?
More information and pictures can be found on our partner's website: https://www.ropeye.com/fuel-cell-1/