3 ms·

Larger sailing vessels (10m+) are actually moving towards solar + hydroelectric with lithium batteries (48v) to power electric engines and generators. Sailing w

Larger sailing vessels (10m+) are actually moving towards solar + hydroelectric with lithium batteries (48v) to power electric engines and generators. Sailing with wind power uses the hydroelectric generators and solar. Motor sailing uses solar and you regen a little bit from hydro or a wind turbine. https://www.sailinguma.com/ https://www.sailinguma.com/

PaulDavisThe1st 5y ago
The article essentially dismisses lithium batteries as non-sustainable.
- coryrc 5y ago
  Which is dumb, because the "saltwater" batteries have manganese cathode and titanium phosphate anode... doesn't sound radically different than lithium iron phosphate.
  - cfn 5y ago
    There were a number of fires in boats at the beginning of using lithium batteries that put off many people from using them.
    - throw0101a 5y ago
      Because "lithium" means a whole category of things. See this mega-thread that was started in 2011 when people will still feeling things out: * https://www.cruisersforum.com/forums/f166/lifepo4-batteries-discussion-thread-for-those-using-them-as-house-banks-65069.html https://www.cruisersforum.com/forums/f166/lifepo4-batteries-... The chemistry of LiFePO4 was settled on (versus something that used cobalt, à la Boeing's 787), and the risk of fires has been reduced considerably. You're more likely to have a boat fire from bad DIY electrical cabling and a lack of fusing. For more than you ever wanted to know about marine electrical/electronics see Jeff Cote's channel: * https://www.youtube.com/user/pacificyachtsystems/videos https://www.youtube.com/user/pacificyachtsystems/videos
- gabereiser 5y ago
  All batteries are non-sustainable. They burn out eventually.
throw0101a 5y ago
Dan and Kika of Sailing Uma themselves recognize that this setup is not for everyone. Here's an interview with them on Sailing Ruby Rose on the subject: * https://www.youtube.com/watch?v=xOAXi5huV1U https://www.youtube.com/watch?v=xOAXi5huV1U A better solution, for the time being, may be what Rebuilding Tally Ho is doing and use a hybrid engine: * https://www.youtube.com/watch?v=xohxmwPfctg https://www.youtube.com/watch?v=xohxmwPfctg He specifically chose a Beta Marine (marinized Kubota) diesel that has an electric motor/alternator connected to a 48V battery bank. If either the mechanics or electrics go, he can use the other. For short jaunts, like in and out of harbours, he can use the electric system to preserve fuel. The system has re-gen capabilities under sail. More pricey though.
- gabereiser 5y ago
  Awesome thanks for that! I wasn’t aware of Beta Marine’s hybrid engine. Looks awesome but definitely pricey.

PaulDavisThe1st 5y ago

The article essentially dismisses lithium batteries as non-sustainable.

coryrc 5y ago
Which is dumb, because the "saltwater" batteries have manganese cathode and titanium phosphate anode... doesn't sound radically different than lithium iron phosphate.
- cfn 5y ago
  There were a number of fires in boats at the beginning of using lithium batteries that put off many people from using them.
  - throw0101a 5y ago
    Because "lithium" means a whole category of things. See this mega-thread that was started in 2011 when people will still feeling things out: * https://www.cruisersforum.com/forums/f166/lifepo4-batteries-discussion-thread-for-those-using-them-as-house-banks-65069.html https://www.cruisersforum.com/forums/f166/lifepo4-batteries-... The chemistry of LiFePO4 was settled on (versus something that used cobalt, à la Boeing's 787), and the risk of fires has been reduced considerably. You're more likely to have a boat fire from bad DIY electrical cabling and a lack of fusing. For more than you ever wanted to know about marine electrical/electronics see Jeff Cote's channel: * https://www.youtube.com/user/pacificyachtsystems/videos https://www.youtube.com/user/pacificyachtsystems/videos
gabereiser 5y ago
All batteries are non-sustainable. They burn out eventually.

throw0101a 5y ago

Dan and Kika of Sailing Uma themselves recognize that this setup is not for everyone. Here's an interview with them on Sailing Ruby Rose on the subject: * https://www.youtube.com/watch?v=xOAXi5huV1U https://www.youtube.com/watch?v=xOAXi5huV1U A better solution, for the time being, may be what Rebuilding Tally Ho is doing and use a hybrid engine: * https://www.youtube.com/watch?v=xohxmwPfctg https://www.youtube.com/watch?v=xohxmwPfctg He specifically chose a Beta Marine (marinized Kubota) diesel that has an electric motor/alternator connected to a 48V battery bank. If either the mechanics or electrics go, he can use the other. For short jaunts, like in and out of harbours, he can use the electric system to preserve fuel. The system has re-gen capabilities under sail. More pricey though.

gabereiser 5y ago
Awesome thanks for that! I wasn’t aware of Beta Marine’s hybrid engine. Looks awesome but definitely pricey.