Originally Posted by mbianka
My battery bank 210 amps at 48 volts. The amp hours used depend on how much and how fast I motor
. Often I just use the EP to get off the mooring
to clear the other boats before I raise sail. Sometimes when I am sailing back in and the current has turned against me I'll power up to punch through against it. Some days I might only use a few AH other days it might be 25 or more. I also have a Honda 2000 generator
that can push my 30 foot sailboat at 3 knots without drawing any amps from the battery bank and uses just 900 watts to do it. I've operated up to 10 hours using it in this hybrid mode. Having solar panels
and a wind generator
adding to the mix also helps. Which is why I hope they do come up with solar panels
built into the sails. I might never have to fire up the Honda ever again.
If'n'when they do come out with "solar sails", they will be so expensive for the first x years, it probably ain't in the old man's future. The transparent cell they tested in the article had a "4% efficiency." What is the efficiency of my 210 watt evergreen panels? Anyone know? I would love to have a mostly silent electric propulsion system, powered by solar and wind
and, when some genius gets it done, a kinetic generator that translated boat motion into electricity.
I've been hearing about retrofitting big buildings with solar windows for years. I wonder what the hold up is? A solar architect buddy of mine told me 6 or 7 years ago it was near, citing 70% of national energy waste came from the big buildings. Seems the way to go would be to require all new mega construction to design in 50% or more energy self-sufficiency bia solar, and that for sure would speed up development of all sorts of solar innovation.