A larger battery and more solar panels doesn’t seem to be an option for the authors:
> The modern stack doesn't really work for us, it doesn't apply to the limitations that we have on the boat. We have 180 watts of solar. We just spent the whole summer with two 6-volt batteries, which is very small. When you're going down that route, at every turn people are telling to just put more solar panels, or to buy more batteries. That is such a modern way of solving your problem. In reality, technology like this(especially high-tech) rarely solves problems. It creates a lot of other problems, which on a sailboat is very immediate. Putting more solar would mean more windage, more chance of things flying off and cutting our limbs. More batteries would mean the boat would be heavier, it would stop us from being able to run away from storms.
I love what they're doing, but these are reasons that don't hold up to scrutiny. gluing flexible panels to the deck would solve the windage problem and the boat is over 16,000 pounds laden... adding another ~80 pounds (less if LiFePO) of batteries would decrease their "run away" ability by about 0.5%. They pretty clearly ran into a challenge, chose the fun solution rather than the practical one, and ran with it. Which is great.
Not only that, but how cutting-edge is the stuff they have? New solar panels have much better efficiency than panels made 20 years ago, for instance (both because of better technology, and because of the effects of aging). Newer battery technology has much higher energy density than old stuff.
When faced with a similar situation and come up with multiple potential solutions — such as settling for older Adobe software versus creating your own resource-efficient graphics application, I'd definitely take the more creative and fun solution over the quick and simple one! Interesting how people's approaches vary in this way.
(That does change somewhat when doing paid work though...)
