Most electric companies, at least the ones in the states, do not allow this buy and sell back method using your batteries as storage. It does not work out to be cost effective usually, but I guess it could if the battery technology was LIFEPO4 or something that accepted 3000+ charge cycles. We have a 4000w inverter and a 48v system in our house – the inverter does have this as a factory setting, you sent the times when you want to “Buy and sell” Our power company forbids the use of this setting.
Chris
On 3/2/10 7:28 AM, "greenpjs04" <greenpjs@neo.
I think two different topics have been discussed in this thread. One is selling excess capacity back into the grid (as Mike just mentioned). That is a great idea. The other is to use our batteries to help the utilities manage their variable loads during the day. That could work technically, but it seems to me, the batteries would be undergoing extra charge/discharge cycles thereby reducing their useful lives. The pricing would have to be such that it was profitable even after factoring in buying new batteries sooner that they would otherwise be needed.
Pat
--- In electricboats@yahoogroups. <mailto:electricboatcom s%40yahoogroups. > , Mike <biankablog@.com ..> wrote:
>
> Chris:
> Â
> I agree. There have been times when I was at a dock and never hooked up to shore power because I did not need to. I think once the V2G technology is installed in cars, boats at marinas won't be far behind. Maybe marinas will put out the welcome mat to us electric boats too. There have been days when my wind generator and solar panels stopped charging because the batteries where at full charge. These solar panels and wind generator could still have been feeding the grid once the B2G technology has been implimented. Those of us with electric boats will be well situated to make a few bucks from our under utilized generating capacity if this technology comes to the market at a resonable price. Something to keep an eye on anyway.
> Â
> Capt. Mike
> http://biankablog.blogspot. com
>
> --- On Mon, 3/1/10, Chris Baker <chris@...> wrote:
>
>
> From: Chris Baker <chris@...>
> Subject: Re: [Electric Boats] B2G TECHNOLOGY: IS THAR GOLD IN THEM THAR HULLS?
> To: electricboats@yahoogroups. <mailto:electricboatcom s%40yahoogroups. >com
> Date: Monday, March 1, 2010, 10:41 PM
>
>
> Â
>
>
>
> Hi Mike,
>
>
> I've had thoughts along similar lines, but not quite the same...
>
>
> Around the marina's I've been on I notice the same thing - hundreds of boats not being used. Â No only are they not being used but the majority are plugged into the grid while at the same time bristling with solar panels and wind generators doing nothing.
>
>
> Chances are there's enough generating capacity in all those unused solar cells and wind generators to power the whole marina - if only the power could flow in reverse and back into the grid. Â The technology is already used for house solar - I'm sure it could be easily adapted for marina use.
>
>
> A small first step would be for marinas to bill separately for power usage rather than including that service as part of berthing charges. Â Then there would be some economic incentive for boaters to at least rely on their own on-board power.
>
>
> When you combine this generating capacity together with the storage capacity you refer to, it could be an even more useful resource.
>
>
> Cheers
>
>
> Chris
>
>
>
>
>
> On 01/03/2010, at 1:40 AM, Mike wrote:
>
>
> Â
>
>
>
>
>
>
> Well maybe not gold but, possibly some silver for those of us who own electric boats. Last week I was on an Amtrak train heading to Washington D.C. speeding along at 90 miles per hour (propelled by an electric motor BTW) reading an article about V2G (Vehicle to grid) technology. If it works for cars why not electric boats that are sitting tied to the dock with no one on them during the week.
> http://biankablog. blogspot. com/2010/ 02/electric- boats-is- there-gold- in-them.html
> Â
> Capt. Mike
> Â
>
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