Deprecated: Function set_magic_quotes_runtime() is deprecated in /nfs/c07/h01/mnt/111479/domains/proskicoach.com/html/forum/include/common.php on line 58

Warning: Cannot modify header information - headers already sent by (output started at /nfs/c07/h01/mnt/111479/domains/proskicoach.com/html/forum/include/common.php:58) in /nfs/c07/h01/mnt/111479/domains/proskicoach.com/html/forum/header.php on line 31

Warning: Cannot modify header information - headers already sent by (output started at /nfs/c07/h01/mnt/111479/domains/proskicoach.com/html/forum/include/common.php:58) in /nfs/c07/h01/mnt/111479/domains/proskicoach.com/html/forum/header.php on line 32

Warning: Cannot modify header information - headers already sent by (output started at /nfs/c07/h01/mnt/111479/domains/proskicoach.com/html/forum/include/common.php:58) in /nfs/c07/h01/mnt/111479/domains/proskicoach.com/html/forum/header.php on line 33

Warning: Cannot modify header information - headers already sent by (output started at /nfs/c07/h01/mnt/111479/domains/proskicoach.com/html/forum/include/common.php:58) in /nfs/c07/h01/mnt/111479/domains/proskicoach.com/html/forum/header.php on line 34
Is There An Electric Ski Boat In Your Future? / Pro Ski Coach Water Ski Forum
Water Ski Coaching from Professional Waterskiers at ProSkiCoach.com

Announcement

We've Moved

The forum here @ PSC has been fun, but we're going to transplant it in much more fertile pastures.

If you already have a PSC account, use your email address to Request A New Password to get started @wetJacket

#1 Mon, Jan 12, 2009 6:28 PM

Schnitz
Karma:   
Slalom Mentor
From: Lake Worth, Florida
Registered: Thu, Nov 6, 2008
Posts: 118
Foot Forward: Right
Website

Is There An Electric Ski Boat In Your Future?

IS THERE AN ELECTRIC SKI BOAT IN YOUR FUTURE?  Written 9/20/2008

Right now, we have the technology and the actual parts to put together an electric powered ski boat.  Tesla Motors currently sells an electric powered sports car powered by a 118 pound, 248 HP electric motor powered by Lithium Ion batteries.  This car can go from 0 to 60 in 3.9 seconds (which is faster than almost every production car on the road) and will hit a top speed of 120 mph with a range of roughly 150 miles.  A rechargeable battery weighing close to 1,000 pounds powers it.  Add the battery and motor weight together and itís almost identical to that of a conventional PCM 349 HP engine with a full tank of gas.  If we increase the size of the motor by 25%, weíll have 310 HP (at the output shaft of the motor from 0 through 8,500 rpm) and increased the motor weight by only 30 lbs.   

The battery size can remain the same as the motor can run at close to 25% efficiency, as itís capable of spinning a constant 14,000-rpm.  Ski boats typically run at 3,500 RPM for 30 seconds, then idle for a minute and then repeat until the end of the set.  At each end of the lake, this boat would use no energy at all as the motor can stop spinning entirely.  Thereís no need to idle.  These factors will allow the boat to run for hours in between charges just like the Tesla roadster.  Docks in the future will have quick chargers where you will plug in your boat in between sets and/or overnight. 

Utilizing this current technology, we could put one of these motors and battery packs in a boat, replacing the gasoline engine and still have all the performance we have grown accustomed to but without burning any petroleum based products period!  No exhaust fumes at the transom.  No noise complaints from the neighbors.  Ski boats might then be allowed on lakes, rivers and places where they have never been before. 

In the end, we have a fully powered ski boat that is noiseless, pollution free and will operate all day for pennies.  One of the drawbacks is that our current technology limits the battery pack life to only last 3 to 5 years.  If the battery pack costs $10,000.00, then the cost per year for the batteries is $3,333.00 per year ($64.00 per week) for a 3 year replacement and $2,000.00 per year ($38.46 per week) for 5 years.  Right now, with gasoline at $3.79 a gallon, we can ski about 16 short sets on this amount.  For anyone skiing 20 sets per week, the savings should the equivalent of about 4 gallons of gas per week plus all of the associated oil and filter changes that go along with this wear and tear.  This equates to $15.16 (4 gallons of gas per week x 52 equals $788.32 per year plus 5 oil and filter changes with Mobil 1 equals another $150.00 for a grand total of $938.32 in savings per year not including the cost of the electricity to recharge the batteries which is ridiculously low and not including any labor for the oil and filter changes.  Add to this all of the positive economic factors (like keeping our money circulating within our own economy rather than sending it offshore) and the environmentally friendly facets which can reduce emissions to zero through the purchase of green energy credits and you are looking at the future right NOW.

Itís up to each and every one of us to help clean up this beautiful planet we call home.  Its up to us to make sure the thoughts and words become things.  In doing so, we will all be doing our part, contributing to a more beautiful, peaceful and cooperative world. 

Sincerely,

Schnitz!



Notes;

PCM Engine weight = 950 lbs

HP 343

Torque 430 at 5,000 RPM through 1.23 to 1 transmission

Gasoline weight = 25 gallons x 6.216 = 155.40 lbs

Total weight for both = 1,105.40

Add the weight of the gas tank also. 

HP = Torque x RPM ų 5252

Weight of Tesla motor = 118 lbs

Weight of fuel (batteries) =

HP 248

Torque 276 at 0 thru 4,500 RPM x 1.23 trans = 339.48

Right now, the Tesla battery pack weighs about 975 lbs.  Add to this a 150 lb motor and the net weight is 1,125 lbs.  The gasoline-powered boat on the other hand carries a 950 lb engine and 155 lbs of fuel for a net total of 1,105 pounds, a 20-pound difference or basically no difference

Offline

 

#2 Mon, Jan 12, 2009 7:39 PM

JP
Karma:   
Slalom Mentor
Registered: Sun, May 27, 2007
Posts: 102

Re: Is There An Electric Ski Boat In Your Future?

Something about electricity and water scares me.

It sounds like a good idea on paper but i have a feeling that the truth of these could be along the lines of a hybrid car. I think that a lot of this technology is a step in a direction we should explore but not exactly one that is the best option. From what I know these battery packs are the most damaging product of these vehicles. The problem with them is that they are not manufactured in one place. I believe that they make approximately half a dozen rides on a cargo ship before they actually go from the  materials into a battery. This process makes a hybrid car actually more damaging to the enviroment in a lifetime than an H2 Hummer is in a life time. To me it sounds like alot of this similar electronic technology is trying to be pulled over into this boat.

Now the real solution to this problem is Diesel engines. In america we see them as highly polluting engines with a lot of power. The truth is in Europe they have diesel cars that exceed 65 miles to the gallon with a much higher efficiency rating.

Im not trying to say that this technology is all bad but there is still some significant room for improvement. This may even be a step in the right direction but just not all the way there yet.

JP

Offline

 

#3 Tue, Jan 13, 2009 5:30 AM

Deke
Karma:   
Slalom Mentor
From: Telluride, CO
Registered: Thu, Apr 3, 2008
Posts: 126
Skis At: 15/34
Foot Forward: Right

Re: Is There An Electric Ski Boat In Your Future?

I think an electric boat is a great idea, especially for slalom course skiing.  The one thing I'm not sure about is the range of a battery charge.  Boats run under a greater, more continuous load than cars do so battery drain would be greater.  Couple that with the inability to do other efficiency tricks like regenerative braking and you might wind up with some some really short run times.  I'm sure someone else more informed could say for sure.

The statement that the battery is hazardous seems to be a sort of mantra based on old technology.  The other often repeated line is that efficiency of a power plant is know better than an engine and that pollutants are the same.  Those ideas simply aren't true and battery technology is changing for sure and so are recharge times.  Here's a link to the Lightning car's battery page for more current info.

http://www.lightningcarcompany.co.uk/nanosafe.php

With super fast charge times,  this would work especially well at most private sites.  The quietness and smoothness would be mind blowing!

Deke

Offline

 

#4 Tue, Jan 13, 2009 8:40 AM

h20dawg79
Karma:   10 
Water Ski Sage
From: nashville,tn.
Registered: Fri, Oct 17, 2008
Posts: 562
Skis At: Old Hickory Lake, TN.
Foot Forward: left

Re: Is There An Electric Ski Boat In Your Future?

New technology is good, The competition it creates is excellent...

Monopolies help to create the "stagnate status quo" that is running rampant in America today. Competition on the other hand, by necessity creates the inovations that push the envelope of perpeual motion. The Electric boat could be awesome, and so could our current products with the Addition of the inovations produced or stimulated by its competition!

JP, Also has a great point with the fact that many of our "Greener" solutions are in fact causing catastrophic damage in the disposal catagory... I.E. house hold appliances that used to not be very "energy effecient" also lasted 20 even 30 yr.'s!!!  Now, our New "energy effecient" models are not meant to last more then 10 yr.'s!!! Did you ever wonder why Sears no longer warranties there Elec. tools for life? ( With the new federal energy consumtion requirements, Sears could no longer produce the necessary motors with Heavier gauge windings on the armatures, etc..to deliver a lasting product.)

WHO WOULDN'T LOVE THE QUIET HUM OF THE ENERGIZER BUNNY?  DRIVING PAST THE PUMPS?
                                OR THE ABSENCE OF THE COOL "EXHAUST BUZZZZ" !?!

Last edited by h20dawg79 (Tue, Jan 13, 2009 8:43 AM)


"Warning" -the Surgeon General has determined; That the preceding statements accurately reflect the views and opinions consistent with "DSS" (Delusional Slalomitis Syndrome) a highly contagious life altering condition... (Handle with Extreme care & Patience)

Offline

 

#5 Tue, Jan 13, 2009 9:27 AM

owenjas
Karma:   
Regular
Registered: Thu, Nov 27, 2008
Posts: 17
Foot Forward: Lefty

Re: Is There An Electric Ski Boat In Your Future?

Solution: On board hydrogen fuel cells creating electricity to power a motor.

- Cleanest possible form of energy, only by-product is water.
- Hydrogen is the most abundant substace on earth.
- No requirement for these heavy and difficult to dispose of batterys.
- Only current limitation is the difficulty in obtaining the hydrogen (spliting it from oxygen), and the costs involved...but with so much money to be made and of course the associated enviromental benfits, its surely only a matter of time before it becomes the only means of fuel for cars, boats etc


Something else which must be recognised with the use of battery powered vehicles is where the electricty you charge them with comes from, as currently the majority is from coal/oil power stations, which of course defeats the object of using electricity for the supposed enviromental benefits...

Offline

 

#6 Tue, Jan 13, 2009 2:02 PM

pgphillips4
Karma:   
Rookie
From: Washington State
Registered: Tue, Apr 8, 2008
Posts: 1
Skis At: Columbia River - Wenatchee
Foot Forward: Right

Re: Is There An Electric Ski Boat In Your Future?

Maybe we are thinking about this the wrong way. What if we remove the boat from our private lakes and install a fixed cable system below water? Electric power, pullies, operated from shore. No Wakes, no speed problems, no gas, no problem.

Offline

 

#7 Tue, Jan 13, 2009 3:02 PM

Sam
Karma:   
Regular
Registered: Tue, Feb 26, 2008
Posts: 16

Re: Is There An Electric Ski Boat In Your Future?

pgphillips4 wrote:

Maybe we are thinking about this the wrong way. What if we remove the boat from our private lakes and install a fixed cable system below water? Electric power, pullies, operated from shore. No Wakes, no speed problems, no gas, no problem.

Yup! Cable Slalom Parks: http://www.proskicoach.com/forum/viewtopic.php?id=516

Offline

 

#8 Fri, Jan 16, 2009 1:23 PM

Mintfooter
Karma:   
Rookie
From: Battle Ground, Wa
Registered: Sat, Nov 1, 2008
Posts: 3
Foot Forward: Right

Re: Is There An Electric Ski Boat In Your Future?

I don't tink this would ever catch on. The feeling of the gas engine is what skiers are used to and won't wanna dump money into something so expensive... Plus its just really stupid.


05 Monza w/ double Approuches

Offline

 

#9 Fri, Jan 16, 2009 1:33 PM

WadeWilliams
Karma:   15 
Pro Skier
From: Lynn, MA
Registered: Tue, May 15, 2007
Posts: 1087
Skis At: Not short enough
Foot Forward: Right
Website

Re: Is There An Electric Ski Boat In Your Future?

Offline

 

#10 Fri, Jan 16, 2009 6:01 PM

h20dawg79
Karma:   10 
Water Ski Sage
From: nashville,tn.
Registered: Fri, Oct 17, 2008
Posts: 562
Skis At: Old Hickory Lake, TN.
Foot Forward: left

Re: Is There An Electric Ski Boat In Your Future?

Geeeeez Wade, I was so optimistic, b4 reading that info... Heck after reading up on our oil situation, I'm not sure if there's enough oil left to ever get me to a respectable line length!

(I wonder if somehow, some sort of electric powered oil converter is possible?   or, or, ahh maybe "cloning" would be more eco friendly...)


"Warning" -the Surgeon General has determined; That the preceding statements accurately reflect the views and opinions consistent with "DSS" (Delusional Slalomitis Syndrome) a highly contagious life altering condition... (Handle with Extreme care & Patience)

Offline

 

Board footer