Author Topic: 10+ year dream realised, I now live on a DIY fully solar powered electric boat  (Read 4421 times)

patrickza

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It's been a dream of mine for over a decade to buy an old boat, fix it up and live onboard while seeing the world. I've also been into EVs for many years, having built my first ebike way back in 2008, so I thought it would be great to have the boat be electric and solar powered.

Well In late 2021 I bought an old British 1976 catamaran that had been wasting away on land for years. Flew to Europe to go check it out and discovered the engines were seized, the wiring a death trap and every through hull valve crumbled when touched.

I had thought I could use it for a year before starting the repower, but with my new knowledge, I knew I had to start the rebuild right away. The first step was to get those heavy, smelly diesels out. With the help of the former owner we built a make shift crane in the cockpit and lifted two 200+kg diesels and lowered them out the back of the boat. It was terrifying. If something went wrong they would have crashed straight through the boat.

After a few months back home, in early 2022 I headed back and then spent 4 months peeling away all the rot, and pulling out all the wiring so I could start again from scratch. I also closed every single hole below the water line. With the boat now mostly stripped back I headed back to go and sell up and pack up, and my wife and I flew to the boat with our poodles to start the rebuild.

Eight months of very hard work in some freezing cold weather and the boat was finally ready for the water. Not finished of course (is a boat ever finished?), but functional! The main work still needed is to actually get the sails working. The solar panels currently interfere with that, so I need to have the foresail trimmed and the boom raised.

Here was me trying no to grin like an idiot the first time I tested the boat last July:
https://www.youtube.com/watch?v=YlJPHILNVoI

Since then we've sailed (when I say sail I mean motor, but it's electric so I think sail still counts!) all over the northern Adriatic. Visited Slovenia, and quite a few places in Italy. Going to Venice on my own boat was quite special :)

We only plugged the boat in once, and that was in late October after a week of rain when I had to move quickly between two storms. All the rest of the time solar has provided all the power to move the boat, cook, make water, heat water, run the starlink, absolutely everything.

If you can tell, I really am happy with how it's turned out. Next season the plan is to sail south through Croatia, and if time allows through Montenegro, Albania and finally into Greece, which was always my dream destination!
« Last Edit: January 12, 2024, 08:48:33 AM by patrickza »

Chris Pascale

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It's been a dream of mine

I really am happy with how it's turned out

Sounds awesome. Keep us updated.

Miss Piggy

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That is quite the project, and damn impressive! What has been the most fun part of the restoration?

dividendman

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Wowza... and here I was happy I fixed my fridge...

Nice work!

LifeHappens

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This is amazing! I think my living on a boat days are behind me, but you are in for some awesome, eco-friendly adventures.

halfling

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This is so cool! Is it challenging to arrange boat-docking locations ahead of time? Super curious how that works in a popular destination like Venice.

JupiterGreen

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Wow, amazing thank you for the youtube link!

spartana

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This is so awesome. I hope you post more about your adventures in the e-boat. It's funny because I was actually thinking about you the other day and about your bike touring adventures on your foldable bike and the tiny house build. Wondered what new cool thing you were up to.

patrickza

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That is quite the project, and damn impressive! What has been the most fun part of the restoration?
Everything is fun in hindsight, but stressful at the time! Personally I really enjoyed hooking up all the electrics. Batteries, solar panels etc. Apart from solar, it was the only part of the project I kind of understood before hand, and making electricity out of thin air is really pretty cool!

Wowza... and here I was happy I fixed my fridge...
Weirdly my fridge just stopped working, and I can't figure out why :D

This is so cool! Is it challenging to arrange boat-docking locations ahead of time? Super curious how that works in a popular destination like Venice.
Unless one of us needs to be away from the boat or there's a giant storm coming we prefer to anchor rather than find a dock. Anchoring is free, and much more peaceful just being in nature than in a busy dock. For both we use an app called Navily which has a list of anchorages, and marinas, and if I do want to go into a marina I just email them to see if there's space and how much it is. Typically we'd do that a week or two before arriving. In Venice the free ancohorages are limited, but there are still a few, and we anchored near a vaporetto stop so we could catch one to the main islands.

This is so awesome. I hope you post more about your adventures in the e-boat. It's funny because I was actually thinking about you the other day and about your bike touring adventures on your foldable bike and the tiny house build. Wondered what new cool thing you were up to.
So good hearing from you again spartana. The folding bikes are onboard, in fact I moved every piece of wood and other building material on the little bike! Since then it's mostly been a grocery getter though. I'll see if I can get a journal going here again for next season, and I've quite enjoyed making the youtube videos so I'll keep doing those too.
« Last Edit: January 12, 2024, 02:36:13 PM by patrickza »

eyesonthehorizon

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This is amazing, wonderful work!

Fru-Gal

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So cool!!!

Telecaster

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Fantastic!   

CowboyAndIndian

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Awesome.

One more fun thread. Following your youtube channel.

the barefoot badger

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This is so amazing!  What a life.

I realize you are on a journey like no other and your experiments and foreign travel are what I'd consider luxury spending (as opposed to a baseline), but do you have an estimate of what your lifestyle costs / what you expect it would cost once the boat is fully to your satisfaction and "only" requires maintenance cost? 

I guess what I'm rudely getting at is, do you have to be rich to live like this, once you have the actual boat?

patrickza

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do you have an estimate of what your lifestyle costs / what you expect it would cost once the boat is fully to your satisfaction and "only" requires maintenance cost? 

I guess what I'm rudely getting at is, do you have to be rich to live like this, once you have the actual boat?
That's a great question. On most sailboats, most of the expenses go to docking fees, sails and rigging, fuel, engine maintenance, generator maintenance and insurance. Possibly in that order. My boat being electric doesn't need engine maintenance, fuel or a generator, the solar covers all of that. I have comprehensive insurance which is $300 a year. Only liability would have been around $80.

So far my biggest costs have all been related to the sails and rigging. Had I known how much that would have cost me in the beginning, and also how well the solar would have worked, I would have simply removed the mast and added more panels. That would have also removed one of the major running expenses going forward. Live and learn.

Rigging should be replaced every 10 to 15 years, at the moment for my boat that's between $4k to $6k depending on where I do the work. I paid $6 in Croatia. In 10 to 15 years I'll only replace it if I really enjoy the sailing (otherwise I'll go for no mast and more solar), and even then I'm likely to go the DIY route using Dyneema, just like I did for my lifelines, so that would bring the cost down nearer to $1000, which would bring it to under $100 a year rather than $500 a year for stainless.

Sails are between $2000 and $5000 for a boat my size. In theory they last 1500 to 2500 hours, which for most sailboats would be around 10 years as well. I can likely stretch that because if the wind is light I can just motor as it costs me nothing in fuel. Maybe that would let me increase the number of years to 15, so I can then say I'll be in the mid-range which would be around about $200-$300 a year.

Then there's marina fees. They can be a lot. The cheapest I've paid for a month was around $700, the most expensive was $1000, but I only stayed in a marina when either my wife or I had to be away from the boat for a long period of time.

Staying at anchor is essentially free, and way better than being in a crowded marina. Your back yard is a beautiful bay to swim in, and you get to see so much more because you move anchorages when you get bored. The longest I stayed out of a marina last year was 4 weeks straight, and I could have stayed longer if it wasn't for unavoidable trips.

Winter is an exception. Most of the med can get pretty stormy in winter, so people typically get a winter berth. I put my boat on land in November as we had commitments in Lisbon, that cost me $2300 for 6 months. If you have a really accomodating wife you can stay onboard when the boat is on land, but we had to be in Lisbon, and so had to rent an apartment for 5 of those 6 months which was +-$8k. Now Lisbon is expensive, last winter when we were still refitting the boat we only spent $3k for 6 months in an apartment in Croatia.

Next year I'm hoping to keep the boat in a marina over winter, and I'm guessing it'll cost me somewhere between $2k and $4k depending on where that is. There will be some fees to lift the boat, put on a new batch of bottom paint and to put it back in the water probably adding another +-$600. If all goes to plan that should hopefully cost me under $4k.

Rounding all of that up, and adding a buffer I suspect it should be easily possibly to spend under $1k a month, which is less than I would pay in most big cities, and includes all our electricity, water (I have a watermaker onboard which runs off the solar too!), and fuel  of which there isn't any! The lower limit would be $500 a month, Shopping around for good winter berthing deals or finding a place where winter anchoring or stay at free town piers is an option.

This of course excludes normal expenses like food, health insurance, internet (my Starlink is just $64 a month) and other costs that exist on land too.

While it might look like it would be cheaper to stay in an apartment like the one in Croatia, those are winter rates, and when the summer rates kick off the price triple! So yeah you need to be rich to have a boat, unless that boat is also your home!

Edit: Oh and just in case you're wondering, all boat costs go up exponentially, which is why I have the smallest boat my wife would be happy living on!
« Last Edit: January 25, 2024, 10:06:22 AM by patrickza »

spartana

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^^^Yeah living on a boat - especially a smaller sailboat that you rehabbed (or built!!) and can maintain yourself - can be pretty inexpensive. Ex-DH and I bought one cheaply and lived on it for a couple of years while we rehabbed it with plans to sail full time once we FIREd. I can't remember our liveaboard dock fees but it was cheap compared to even a one bedroom apt and power and water were included. This was in SoCal so it was a good frugal way to live. We never did do the full time sailing thing (divorced and he got the boat LOL) but I personally found it pretty inexpensive and a nice way to live. Ex-Hubby and I both had military careers at sea so we're use to living on ships and boats long term and the ups and downs of life at sea. But a solar powered boat is new to me and Im really interested in how it all works out.

Josiecat22222

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This is awesome!! We are looking for our "sail away" boat and love all the solar modifications!!

patrickza

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This is awesome!! We are looking for our "sail away" boat and love all the solar modifications!!

Thanks, yeah I didn't want to spend a fortune replacing the bad diesels, and then still have to learn how to become a diesel mechanic, worry about water in the fuel, diesel bug etc. etc. and on paper it looked like the solar could work. Little did I realise just how well :)

Fru-Gal

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If you were to remove the rigging (and even if not), do you have backup power such as a generator on board in case something were to go seriously wrong with the batteries? Also how much risk of electrocution is there, and/or how do you prevent that?

patrickza

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If you were to remove the rigging (and even if not), do you have backup power such as a generator on board in case something were to go seriously wrong with the batteries? Also how much risk of electrocution is there, and/or how do you prevent that?
If I removed the rigging my plan was to install a small gas outboard as a backup. I know someone with the same boat and two Tohatsu 6hp sail pro outboards, and just using one he can do 5 knots, so that would in effect become my get me home plan which isn't reliant on any other parts of my system.

The risk of electrocution is low. It's a 48V system, which is the legal definition for low voltage. It can technically still kill a person, but it's very unlikely. Also it's DC current, so unlike the AC in your house, you'd need to touch both cables, the positive and negative, not just the live like in a house. Also at 48V you'd probably need to first dip both hands in water and then grab each end :)

I prevent it by keeping the batteries in an engine bay I don't go into often, covering all the terminals with covers or tape, and using fuses and a BMS. You're probably much more likely to die hooking up a normal boat to a marinas electric system (which I don't need to do) than you are having an electric boat.

My main worries are bad weather and falling overboard, those two can be seriously scary. I've been trying to get my wife to learn about man overboard procedures, but at the level of skills she has now, I would almost certainly die if I fall overboard when the boat is moving. It's hard to convince someone just how dangerous it could be when we've spent so much time in glassy smooth water.

patrickza

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Anyway, to get off the topic of death, here's one of our first long trips on the boat:
https://www.youtube.com/watch?v=CneC9SIf5RA

Edit: Hmm any way to make the youtube viewable here?

jinga nation

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Anyway, to get off the topic of death, here's one of our first long trips on the boat:
https://www.youtube.com/watch?v=CneC9SIf5RA

Edit: Hmm any way to make the youtube viewable here?

Hey, been reading your journal and watched the UToob vids, awesome work, dude!

YouTube videos can be embedded on Simple Machines forums. However, MMM Forums runs v2.0 which isn't supported. It would need an upgrade to v2.1.

The feature is explained here.

fuzzy math

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So freaking awesome!!! I subscribed. Someday in my next phase of life I want to do some sort of off grid solar thing. Your setup is so cool. Were you nervous it wasn't going to work?

patrickza

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So freaking awesome!!! I subscribed. Someday in my next phase of life I want to do some sort of off grid solar thing. Your setup is so cool. Were you nervous it wasn't going to work?
Thanks!

Well I knew the motors and batteries would work, what I wasn't sure of is how well the solar would work. On paper it seemed accurate that I had enough watts to move just on solar power, but in reality that had me nervous. My plan was to do what other electric sailboats do, use the motors to get in and out of ports/anchorages, and then sail everywhere. Turns our the sails weren't ready, and the solar worked so well I now think I have a solar powered yacht with backup sails... Or at least I hope to have backup sails once they're all set up next season :)

spartana

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 My main worries are bad weather and falling overboard, those two can be seriously scary. I've been trying to get my wife to learn about man overboard procedures, but at the level of skills she has now, I would almost certainly die if I fall overboard when the boat is moving. It's hard to convince someone just how dangerous it could be when we've spent so much time in glassy smooth water.

I'm ex- coast guard and I'm always nagging and yelling at people about this lol. But yeah, have her take some boating safety courses (in person is better than online) and practice some drills 'cause it can get scary dangerous even on something flat calm very fast.

I'm curious what kind of cruising you're planning? I can't watch youtube videos (no internet and limited data on my phone) but you are so near to some great coastal cruising spots.
« Last Edit: February 07, 2024, 09:44:27 PM by spartana »

patrickza

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Absolutely I need to get her trained!

We're coastal cruisers, mostly doing hops of around 20-30 nautical miles in a day, and staying in a place until weather or boredom has us move on. Last season we spent our time along the Istrian coast of Croatia, and the Northern Italian cost all the way up to Venice. Map attached below.


This year the plan is to head south through Croatia aiming for Greece. I've sailed once before near Split and Sibenik and it was amazing, so we might stay there for a while, I'll have to see. I also hear that the Ionion is beautiful and often described as a bathtub, so hopefully that means more relaxed motoring.

former player

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I love how you have rehabbed a derelict glassfibre boat, there are far too many environmentally damaging glassfibre hulks now that should be rehabbed rather than left to rot or sent to landfill.

I've sailed a bit in Greece including the Ionian.  "Bathtub" is mostly right but not completely: there are some channels and bays where the winds can be fierce, particularly an offshore in the afternoon, and there is always the possibility of a short but strong squall in spring and autumn.

patrickza

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I love how you have rehabbed a derelict glassfibre boat, there are far too many environmentally damaging glassfibre hulks now that should be rehabbed rather than left to rot or sent to landfill.

I've sailed a bit in Greece including the Ionian.  "Bathtub" is mostly right but not completely: there are some channels and bays where the winds can be fierce, particularly an offshore in the afternoon, and there is always the possibility of a short but strong squall in spring and autumn.
Thanks, yeah people say wooden boats die of old age but fibreglass boats don't, so if you find a good hull you can pretty much rebuild all the rest as long as you have deep pockets. The older boats specifically were overbuilt, so they have tough hulls and make good rebuild candidates.

Good info on the Ionian, thanks for that. I'll dig deeper before I get there, I still have the whole of Croatia to get through before I'm there :)

 

Wow, a phone plan for fifteen bucks!