Thanks Tom.
I did a quick internet search , and the first thing I came up with was http://boatingsailing.suite101.com/article.cfm/corrosion_and_electrolysis_in_boat .
Something to keep in mind , for sure .
Regards Rob J.
From: Tom Regan <boat_works@yahoo.
To: electricboats@
Sent: Thu, 4 March, 2010 3:46:05 PM
Subject: Re: [Electric Boats] B2G TECHNOLOGY: IS THAR GOLD IN THEM THAR HULLS?
A galvanic isolator or an isolation transformer will eliminate galvanic
corrosion issues created by neighboring boats.
-Tom
Rob Johnson wrote:
> How much of a problem is electrolysis , in marinas with heaps of boats
> plugged in ?.
> I had a boat I was thinking of buying recently surveyed , it had
> electrolysis damage , apparently from a neighbouring boat at the
> moorings "leaking".
> Regards Rob J.
>
> ------------
> *From:* Mike <biankablog@verizon.
> *To:* electricboats@
> *Sent:* Thu, 4 March, 2010 12:28:53 AM
> *Subject:* Re: [Electric Boats] B2G TECHNOLOGY: IS THAR GOLD IN THEM
> THAR HULLS?
>
>
>
> / /
> Eric:
> Certainly good points. But, unused solar and wind generators sitting
> on boats in marinas is still wasted energy IMO. I think it will also
> depend on how the technology shakes out in the end. It may not be
> practical for sailors like me whose boat lives on a mooring and use
> the boat to get away from land as much as possible. But, someone who
> uses their electric pontoon boat on a lake only on weekends and is
> docked during the week. They might benefit. If B2G technology becomes
> part of the "smart grid" concept that we keep hearing about it might
> come to fruition a lot sooner. Marinas for example might offer dockage
> discounts to electric boats equipt with B2G technology because it will
> help reduce their operating costs. I agree that the solar panels will
> not replace a Honda 2000i generator in power production but, if I
> already have the panels on board and my are batteries topped up. Which
> happens often on my boat. I'd be glad to sell the excess power to the
> utility if I could. The same goes for my wind generator. I'd even let
> them use my battery bank as long as I can control how much I want them
> to discharge them and the price is right. In the end there will be a
> lot of factors from government regulation (and maybe tax
> incentatives)
> technology and utility infrastructure but, I see only an upside for us
> who own electric boats in B2G technology. As the saying goes "We've
> got the power!" It may not be a lot compared to a utility generating
> plant but, it but, every little bit helps especialy during peak demand
> times.
> Capt. Mike
> http://biankablog.
>
> --- On *Tue, 3/2/10, Eric /<ewdysar@yahoo.
>
>
> From: Eric <ewdysar@yahoo.
> Subject: Re: [Electric Boats] B2G TECHNOLOGY: IS THAR GOLD IN THEM
> THAR HULLS?
> To: electricboats@
> Date: Tuesday, March 2, 2010, 9:58 PM
>
> So let's do little math. We'll assume that the electric utility
> will buy back electricity at the same rate that you pay for it and
> that the boat has 400W of solar panels on board. If the boat is
> really idle, then it might generate 2 kWh on a good day. Then the
> day is worth 34 cents. Multiply this by 30 days (assuming perfect
> weather and no usage of the boat) and in a month the boat will
> have earned it's owner $10 in electric generation by providing 60
> kWh back into the grid.
>
> Looking at the assumptions, Southern California credits grid tie
> energy at 1 to 1 against electricity used from the grid, they do
> it with one meter and spin it backwards when you're providing
> energy into the grid. Months with negative readings get rolled
> over, but won't carry over from one year to the next. The billed
> total cannot go below 0 kWh in the 12 month cycle related to the
> specific meter. A standard connection must still be paid monthly.
> So the best case scenario is that the utility bill would drop to
> the connection fee and no charges for electricity would be billed
> over the course of a year.
>
> I don't know of many people with 400W of panels on their boat,
> certainly less than 1% of the boats in our marina (with 6000
> slips, it's the largest non-commercial boat marina in the world).
> I would be surprised if 10% could generate 1 kWh of excess
> electricity on a good day. So its more likely that only 10% of the
> boats could provide about 30 kWh/month to the grid. My 2 bedroom
> house averages less than 20 kWh per day including A/C in the
> summer time. I don't think that my winter usage ever falls below
> 10 kWh/day. So if 10 over-paneled boats signed up, they could
> cover my winter usage, it would take 20 boats to cover my annual
> average.
>
> I think that problem with this idea is the scale, there's a lot of
> infrastructure and ongoing management to invest for a relative
> small return. I doubt that the utility company would consider the
> program worth the effort.
>
> Fair winds,
> Eric
> Marina del Rey, CA
>
> --- In electricboats@ yahoogroups. com
> <http://us.mc840.
> Hans Kloepfer <hanskloepfer@ ...> wrote:
> >
> > I think that B2G tech in a marina is a great idea. I could
> imagine a model that has some potential for my marina.
> >
> > My current marina has individual meters at each dock box. We pay
> the hefty commercial rate for power. I want to say 17 cents per
> kWH. We don't pay the utility company though. We pay the marina
> for power and they are the ones who pay the utility company bill....
> > By the way, my marina is applying for some kind of "green marina
> certification" I think there is probably a state subsidy behind
> this so they may have motivation.
> >
> > Hans
>
>
>
>
>
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