EV technology for your next boat ???

[kashurst]

Still nobody commenting on the 600V DC in the engine room.
Do you realise the power involved.
I know we are only talking volts here but the extra voltage over the 24v that we are used to will make the terminals very dangerous.
Just imagine all that electrical power available at a 600V DC terminal that can suddenly release a huge number of amps that you would have stored to drive the boat.
Do you all realise just what that power can do?

What's the problem. Big boats have 3 phase gennies - that's 415 V ac (rms). Peak voltage is about 580 V
Smaller boats have single phase 230V ac rms - peak 325 V - if you get hold of the wrong end of that you are just as dead.

You can get more than a tingle from 28V DC with good contact - aka a bit wet.

 

[flaming]

What do you replace my 2400Hp ICE engines (needed to get my 50 ton boat planing) with?

You don't. Unless there's a massive leap in battery energy density it's unlikely in any sort of predictable timescale that we will see 50 ton planing electric boats in any way similar to now.

Without diesel engines and very large tanks you need to change the design of the boat. The most likely direct replacement for the use case of relatively short distance, relatively high speed powered cruising is probably a power cat, with very narrow wave piercing hulls. That sort of design needs a lot less power to reach reasonable speeds. And for the same size it will need to be a lot lighter.

Your boat will still be around for a long time to come. The issue will be getting fuel for it, and how expensive that fuel becomes as the road demand drops away.

 

[Tamar]

Now the battery to drive them?

Or a long extension lead

 

[SailingDog]

We seem to differ on everything

What ? Are you saying you have a portrait in the attic at Bouba towers.

 

[Bouba]

You don't. Unless there's a massive leap in battery energy density it's unlikely in any sort of predictable timescale that we will see 50 ton planing electric boats in any way similar to now.

Without diesel engines and very large tanks you need to change the design of the boat. The most likely direct replacement for the use case of relatively short distance, relatively high speed powered cruising is probably a power cat, with very narrow wave piercing hulls. That sort of design needs a lot less power to reach reasonable speeds. And for the same size it will need to be a lot lighter.

Your boat will still be around for a long time to come. The issue will be getting fuel for it, and how expensive that fuel becomes as the road demand drops away.

In fact Hurricane might do better than the rest of us in smaller boats…he can order enough fuel from a supplier to make the delivery worthwhile whereas our smaller needs might find them not bothering

 

[Bouba]

What ? Are you saying you have a portrait in the attic at Bouba towers.

I’m just saying that I’ve been around long enough to see this subject has been covered three times so far

 

[SailingDog]

I’m just saying that I’ve been around long enough to see this subject has been covered three times so far

Argh OK, I thought you were saying you would see electric boats and EV cars being the norm 90% still on fossil fuel the devils.

 

[westernman]

What do you replace my 2400Hp ICE engines (needed to get my 50 ton boat planing) with?

Big electric motors.

And big generators.

Like all modern cruise ships which have electrically driver propeller pods and lots of large generators (so they can turn them on/off to optimize their load and efficiency).

 

[Bouba]

Argh OK, I thought you were saying you would see electric boats and EV cars being the norm 90% still on fossil fuel the devils.

There’s been two electric boats at Porquerolles for quite a while drumming up interest…small electric boats can use electric car technology..but big boats need truck technology..and it’s coming.
They will be extremely expensive when they finally hit the boat show circuit..but by then everyone will have or know someone who has an electric car…all your deliveries will be by electric van and many of the big trucks on the road will be electric..so buying an electric boat will seem like normal..your feeling will be that by going electric you have ensured that there will be a second hand market for your new purchase..it will just seem like the natural thing to do

 

[ari]

There’s been two electric boats at Porquerolles for quite a while drumming up interest…small electric boats can use electric car technology..but big boats need truck technology..and it’s coming.
They will be extremely expensive when they finally hit the boat show circuit..but by then everyone will have or know someone who has an electric car…all your deliveries will be by electric van and many of the big trucks on the road will be electric..so buying an electric boat will seem like normal..your feeling will be that by going electric you have ensured that there will be a second hand market for your new purchase..it will just seem like the natural thing to do

I'm curious to know your timescale for all these electric vans and lorries? It's just that I see a slight issue with the fact that electric vans don't have the range for out of cities and electric trucks simply don't exist in any meaningful and useful way at all.

I'm afraid I see it a little like self driving cars. 10 years ago it was widely believed that we were a decade away from everyone being spiriting around in them. Here was are, 10 years on and it's now at least 20 years away, but more likely never in terms of a properly self driving car that can take you to work and then drive itself home to run the kids to school on its own.

We're less than 7 years away from a total ban on the sale of new petrol and diesel cars, does anyone see any signs of the infrastructure being put in place for that in any meaningful way?

There are a lot of pipe dreams surrounding this eco/techno stuff, and I've no doubt the technology will improve. But I very much doubt we're going to see any serious progress in the short to medium term.

 

[Bouba]

I'm curious to know your timescale for all these electric vans and lorries? It's just that I see a slight issue with the fact that electric vans don't have the range for out of cities and electric trucks simply don't exist in any meaningful and useful way at all.

I'm afraid I see it a little like self driving cars. 10 years ago it was widely believed that we were a decade away from everyone being spiriting around in them. Here was are, 10 years on and it's now at least 20 years away, but more likely never in terms of a properly self driving car that can take you to work and then drive itself home to run the kids to school on its own.

We're less than 7 years away from a total ban on the sale of new petrol and diesel cars, does anyone see any signs of the infrastructure being put in place for that in any meaningful way?

There are a lot of pipe dreams surrounding this eco/techno stuff, and I've no doubt the technology will improve. But I very much doubt we're going to see any serious progress in the short to medium term.

It’s happening now as we speak..once production from Tesla and others ramp up..once 800 KWh chargers are installed..and most importantly, once government starts offering some carrots and sticks…it will happen soon(ish)…since I’ve been driving around England this last couple of weeks I have been gobsmacked at the number of Teslas on the road.. and remember, I don’t see non Tesla EVs, so they could be everywhere. Today in London, I even saw my first lamppost chargers. The future is happening right now

 

[Suffolk_Newbie]

Large electric trucks are a dream. For a 44 tonne truck to get 500 mile range, the batteries will weigh 20 tonnes.

They are here and working:

Semi | Tesla United Kingdom
The Tesla Semi truck is finally ready, and Pepsi gets the first ones

 

[Elessar]

What do you replace my 2400Hp ICE engines (needed to get my 50 ton boat planing) with?

New ones the same in the unlikely event that you wear them out.
You’ll just not be feeding them

 

[Elessar]

It’s happening now as we speak..once production from Tesla and others ramp up..once 800 KWh chargers are installed..and most importantly, once government starts offering some carrots and sticks…it will happen soon(ish)…since I’ve been driving around England this last couple of weeks I have been gobsmacked at the number of Teslas on the road.. and remember, I don’t see non Tesla EVs, so they could be everywhere. Today in London, I even saw my first lamppost chargers. The future is happening right now

The grid does not have the capacity. And won’t for a very very long time. Electricity is not the future for everything.

 

[Elessar]

Here you go

Electric motor 900kW H17RL-450-2, 2985rpm, 380V-400V-420V, 440V-460V-660V-690V-720V, 50Hz-60Hz-IC411-IE3-low-voltage-LV - Medium voltage motors

2 of those will do the trick - 900kw = 1206hp

That and a small nuclear reactor.

 

[Elessar]

Still nobody commenting on the 600V DC in the engine room.
Do you realise the power involved.
I know we are only talking volts here but the extra voltage over the 24v that we are used to will make the terminals very dangerous.
Just imagine all that electrical power available at a 600V DC terminal that can suddenly release a huge number of amps that you would have stored to drive the boat.
Do you all realise just what that power can do?

I did. I said I wouldn’t have them on the boat period.

 

[Elessar]

Even the green dots only have 15% capacity left.
Before the rollover to heat pumps.
Forget the battery density. We can’t charge them.

 

[bedouin]

Which begs the question, if ICE is phased out for personal use, where does that leave motorboating as a hobby?

Eventually synthetic fuel - already available at a price and it is likely to get cheaper and production ramped up as it is used to de-carbonise transport like air traffic and ships. The challenge will be ramping up production without causing other negative impacts - e.g. taking good agricultural land away from food production.

 

[SailingDog]

It’s happening now as we speak..once production from Tesla and others ramp up..once 800 KWh chargers are installed..and most importantly, once government starts offering some carrots and sticks…it will happen soon(ish)…since I’ve been driving around England this last couple of weeks I have been gobsmacked at the number of Teslas on the road.. and remember, I don’t see non Tesla EVs, so they could be everywhere. Today in London, I even saw my first lamppost chargers. The future is happening right now

The future is significant in so much that my bbq‘ed sardines are nearly done. 90% of cars in UK are still using the black stuff. You can future gaze and dream about utopia, the reality is the political will is going to be shining the light on defence along with balancing the books after Covid, they can’t afford to fullfil BJ’s promises and he is busy elsewhere just now.

 

[Bouba]

The future is significant in so much that my bbq‘ed sardines are nearly done. 90% of cars in UK are still using the black stuff. You can future gaze and dream about utopia, the reality is the political will is going to be shining the light on defence along with balancing the books after Covid, they can’t afford to fullfil BJ’s promises and he is busy elsewhere just now.

So already at 10%. brilliant !