You are making unrealistic assumptions that the diesel and electric maintenance will be similar. If you do go out 20 days a month for 8 years, the repair cost of the diesel over those 8 years would be many times the cost of the new battery pack. Not to mention that the diesel would also be do to be replaced. But to each there own.
On Aug 6, 2014, at 5:35 PM, "Bruce Wilder brucewild@gmail.com [electricboats]" <electricboats@yahoogroups.com> wrote:
My comment on the practicality of electric vs diesel as it relates to commercial operators has to do with the cost of diesel fuel for a year. Lets say your boat goes out 20 days a month and uses 5 gal of diesel per. At $4.00 a gallon that's roughly $5000 a year for fuel. The Torqueedo set up, not counting initial cost of say $10,000 still must be charged up with generator or using shore power at night rates. Sure, on a good day you can recapture some juice with renewables but realistically only a fraction of what you need and not dependably. So I can see where an operator might see a break even at 4 years and then start to save money, only to ( supposedly)Need a new battery bank at 8 years. However, in your charter business electric propulsion might be a marketing strategy that would allow you to book a different clientele that would pay more thus affecting your bottom line to the extent where it would be a win-win.
On Aug 6, 2014, at 1:04 AM, "Stuart Armstrong sydesiderata@yahoo.com [electricboats]" <electricboats@yahoogroups.com> wrote:Hi AllThanks for the feedback.Here is a bit more info hope this helpsI would be looking to get about 2 hours from battery as mostly I am sailing,the battery's must recharge as I sailI obviously need a generator to recharge when not sailing or no windAnd for domestic powerThe alternative is buying both a Diesel engine and a generatorWhy would a commercial outfit be different , we live on Desi 24/7I don't believe weight will be an issue as Desi weighs 30 tonnes and at the moment we carry 1000 ltrs in two tanks one of which I would convert to battery space
Stuart Armstrong
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Posted by: James Sizemore <james@deny.org>
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