If so why would the same not be true for a boat?
Nick
From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com] On Behalf Of Andrew Gilchrist
Sent: November-20-11 10:20 PM
To: electricboats@yahoogroups.com
Subject: RE: [Electric Boats] Re: new lithium battery breakthrough?
Regardless batteries are not popular in cars because they confront owners with high lump sum replacement cost
That may never be resolved.
The fuel cell looks the best electric power option and are viable in cars
In the interim a generator and pack are a good combination
From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com] On Behalf Of Nick Boersema
Sent: Monday, 21 November 2011 2:05 AM
To: electricboats@yahoogroups.com
Subject: RE: [Electric Boats] Re: new lithium battery breakthrough?
You are very right. If we can get the shift rolling the economies of scale that will effect battery production will very quickly get the cost done and we can only hope the price will follow. But right now it is battery issues which are holding back the car industry (on the technology side on the political side there is the petro lobby). If they are solved then the huge demand created in the auto sector will be all it takes to get the cost down. This demand will cascade through the EP sector in bringing down the cost of everything else from motors to controllers etc. So yes this potential breakthrough in battery technology is huge!
Nick
From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com] On Behalf Of Carter Quillen
Sent: November-20-11 9:39 AM
To: electricboats@yahoogroups.com
Subject: Re: [Electric Boats] Re: new lithium battery breakthrough?
Ben,
That day is here, right NOW!
You can easily put 5 kW of PV on the average 1200sqft house, heck I'm going to have 5 kW on a 45' boat when I'm done. Tighten up your house just a little with good insulation, a high eff. air conditioner, energy star appliances, and a solar thermal water heater and you'll have more power than you know what to do with. Althoough storage technology is still a bit of a weak link, the necessary battery technology is here, it's just still a little too cumbersome for the average consumer to deal with and the price point is a little high. But when Li ion comes down, that won't even be an issue anymore. So for now most people are using the grid as their battery with grid tie technology that lets you sell extra power back to the electric utility. Off grid systems with a battery bank are the exception, rather than the rule for the industry right now.
And, with the cost of PV fastly approaching $1 per watt, PV is already a better deal for utilities than need to build more capacity. Although the sun obviously doesn't shine at night, there is a direct corelation between the load on the grid and the amount of solar energy falling on the earth so we could go to about 30% of our grid capacity with solar before we had to worry about storing anything in batteries.
The only thing lacking right now for a wholesale switch to solar is will and greed. The power companies don't want distributed power on everyone's house because it would put them out of business. Consumers don't have the resources to capitalize the widespread technology transfer and the powers that be that do have the resources are all too busy saying how it's not feasible.
It's one of the many big lies of our time!
And, installing solar and building a decentralized energy infrastructure is not only infinitely more environmentally responsible, it is far more labor intensive than building new power plants and transmission lines and would put exponentially more people to work doing it. Yet the electric utility industry is spending millions lobbying Washington to keep the status quo in place and keep the rest of us in energy dark ages.
Carter
From: Ben Okopnik <ben@linuxgazette.net>
To: electricboats@yahoogroups.com
Sent: Sunday, November 20, 2011 8:24 AM
Subject: Re: [Electric Boats] Re: new lithium battery breakthrough?
On Sun, Nov 20, 2011 at 09:37:25AM +0100, Carel Ruysink wrote:
>
>
> I also did not make the connection and BTW allthough I did not do the maths I
> do not believe that an aircraftcarrierdeck full of PV panels could produce the
> needed 300.000 SHP for an aircraftcarrier.
Heh. That would be my version of "grid equivalence": when PV reaches the
efficiency necessary to fully power the average house while using only
the roof area of that house to gather the energy.
Obviously, that's got a ridiculous number of assumptions and variables
built into it, but... :)
--
Ben Okopnik
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