Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 27-11-2017, 12:42   #16
Registered User

Join Date: Jul 2012
Location: Miami Beach, USA
Boat: FP Lucia 40
Posts: 96
Re: Solar and Lucia 40

We will be running 3 separate controllers, 1 for each panel (Victron 100/30) As to best combat any shading of the panels that may occur. 3 X22 360watt panels with just the slightest of overhang aft of the coach roof. No hangover to the sides.

Installation has not happened yet. Will be doing that in the next month. We had to get moved aboard first. I'll be sure to post images when complete.

S/V Long Shadow, Hull #97, Home Port Miami Florida
__________________

Terbonium is offline   Reply With Quote
Old 27-11-2017, 13:01   #17
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2017
Location: Montreal, QC
Boat: LUCIA 40 Maestro
Posts: 179
Re: Solar and Lucia 40

Quote:
Originally Posted by Terbonium View Post
We will be running 3 separate controllers, 1 for each panel (Victron 100/30) As to best combat any shading of the panels that may occur. 3 X22 360watt panels with just the slightest of overhang aft of the coach roof. No hangover to the sides.

Installation has not happened yet. Will be doing that in the next month. We had to get moved aboard first. I'll be sure to post images when complete.

S/V Long Shadow, Hull #97, Home Port Miami Florida
So you are still on the SunPower... I agree they give the most for small overhang. I made a SolidWorks 3D model from the "pictures of the drawings" form FP options list. They are approximate maybe to "better than the inch close" but they are not for manufacturing.

I don't like hull attachments with an hinged fitting at the end, like stanchion ones, and much prefer SOLID frames, also because at the center the panel frame will be higher. So this is the preliminary design I made for costing purpose. It can be made in 3 parts, right-left miror and 2 central tubes.

If I can get exact dimensions of the bimini end, I can make a manufacturing drawing any shop can bid on.
__________________

__________________
Waiting for a Lucia October 18
Falbala60 is offline   Reply With Quote
Old 27-11-2017, 13:26   #18
Registered User

Join Date: Jul 2012
Location: Miami Beach, USA
Boat: FP Lucia 40
Posts: 96
Re: Solar and Lucia 40

Falbala60 - That's very close to our design with the addition of two angled supports from underneath the coach roof vertical supports towards aft that tie into the leg like structures you have on the aft support that runs port/starboard. There is just too much flex in the factory roof aft of the traveler not to have some type of stiffening installed. The brackets will start at 6'2" above the deck and angle upward/aft. There is 0 chance of us bumping into it.. And, we decided if we we
were going to debate what we could bump our head into, there are a dozen other existing areas that could be addressed.


That was a messy word picture, hope you can decode it.
Terbonium is offline   Reply With Quote
Old 27-11-2017, 14:18   #19
Registered User

Join Date: Feb 2009
Location: Sydney, Australia, Cruising Greece in the summer.
Boat: FP Lucia 40, Hull #22
Posts: 426
Re: Solar and Lucia 40

Falbala, I agree totally that lots of solar is good. I tend to be a bit minimalist and hence no AC and genset.

I also agree that solar on the davits is not a good idea. I had that on my last boat and it always seemed to be in the shade. You get much better exposure on the bimini. Likewise I find it hard to understand why they did not allow for bigger panels in the design.

When I remount my flexis I will be up to 750Watt which should meet our needs unless there is heavy oven and water maker usage. We use a convection microwave rather than a gas oven.

My current set up has the 3 panels in series to a Victron 100/30 MPPT which is great. I did a series installation as the cable run is long and the higher voltage is better. When I remount the flexis I will use another 100/30 for them.
MKB53 is offline   Reply With Quote
Old 27-11-2017, 15:55   #20
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2017
Location: Montreal, QC
Boat: LUCIA 40 Maestro
Posts: 179
Re: Solar and Lucia 40

Quote:
Originally Posted by Terbonium View Post
That was a messy word picture, hope you can decode it.
I agree that the aft of the rigid bimini is not "very rigid" and nobody can stand there, but I tought that solar panels could.

You are great, you make me afraid and if I understand well, you will add a triangle braket at the top of the main sail track support post, under the fiberglass of the bimini that run to the end.

About like this... (the main track is there but not the "fiberglass chanel")
__________________
Waiting for a Lucia October 18
Falbala60 is offline   Reply With Quote
Old 28-11-2017, 02:39   #21
Registered User

Join Date: Feb 2009
Location: Sydney, Australia, Cruising Greece in the summer.
Boat: FP Lucia 40, Hull #22
Posts: 426
Re: Solar and Lucia 40

If anyone wants a more detailed description and photos of the cable routing send me a PM with your email address and and I will forward by email as it is cumbersome putting it all in the thread.

One thing to note, if you have a parallel wiring setup with multiple controllers you will be routing multiple cables which could get tight in some places. Parallel with a blocking diode and a single controller may be a better option.
MKB53 is offline   Reply With Quote
Old 28-11-2017, 08:52   #22
Registered User

Join Date: Jul 2012
Location: Miami Beach, USA
Boat: FP Lucia 40
Posts: 96
Re: Solar and Lucia 40

Heres quick walk around under the coach roof.

https://youtu.be/p1MMmvZT5NY
Attached Files
Terbonium is offline   Reply With Quote
Old 28-11-2017, 14:17   #23
Registered User

Join Date: Jul 2012
Location: Miami Beach, USA
Boat: FP Lucia 40
Posts: 96
Re: Solar and Lucia 40

Quote:
Originally Posted by MKB53 View Post
One thing to note, if you have a parallel wiring setup with multiple controllers you will be routing multiple cables which could get tight in some places. Parallel with a blocking diode and a single controller may be a better option.
The VMpp of the Sunpower panels are 60v/6amp. 11-14AWG would be acceptable for the necessary run. I'll be running the wire in the next couple weeks and I'll report back what I find.
Terbonium is offline   Reply With Quote
Old 28-11-2017, 18:04   #24
Registered User

Join Date: Feb 2009
Location: Sydney, Australia, Cruising Greece in the summer.
Boat: FP Lucia 40, Hull #22
Posts: 426
Re: Solar and Lucia 40

High voltage. The panels I am using are 25V open circuit so you can put 3 in series although Victron recommend 2.

Also, with DC the voltage regarded as "Dangerous" is over 70V or 80V so with 3 or 4 in series you need to be careful although there is probably not enough amperage to do real harm. I treat it like a mains circuit to be on the safe side.
MKB53 is offline   Reply With Quote
Old 29-11-2017, 07:47   #25
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2017
Location: Montreal, QC
Boat: LUCIA 40 Maestro
Posts: 179
Re: Solar and Lucia 40

Quote:
Originally Posted by Terbonium View Post
The VMpp of the Sunpower panels are 60v/6amp. 11-14AWG would be acceptable for the necessary run. I'll be running the wire in the next couple weeks and I'll report back what I find.
So with 60VDC, I understand it must be parallel, but with a single controler how will be the shading effect of overall efficiency ? I always heard that multiple controler is much better. If cable ducting is a problem with multiple cables, is it possible to enlarge the openings... just a bit.
__________________
Waiting for a Lucia October 18
Falbala60 is offline   Reply With Quote
Old 29-11-2017, 19:28   #26
Registered User

Join Date: Feb 2009
Location: Sydney, Australia, Cruising Greece in the summer.
Boat: FP Lucia 40, Hull #22
Posts: 426
Re: Solar and Lucia 40

As a disclaimer - I don't claim to be an expert on this, just giving feedback from my experiences.

Cabling: In most of the cable run there will be room but there are a few choke points including the final conduit run into the engine room. The cable I was supplied was very thick. 6mm twin core but it was round with a heavy neoprene casing. It would have been very difficult getting 3 of these through some areas. If I had the standard "Flat" twin core you get in Australia it would have been a lot easier and you may well get 3 through. The high spec casing is unnecessary as it is not exposed to oil or sunlight.

Multi controllers: I can't comment as to whether 3 is more efficient than one. I obviously gives you redundancy which is a good thing. My gut tells me that I would prefer one device monitoring battery state and adjusting current etc than 3. The other comment is that while the engine room is quite spacious there is not a lot of space on the "wall" to mount them. I would map the installation out before committing.

Parallel: If you do do a parallel installation you must fit blocking diodes to prevent current flow back into a shaded panel as this can and will damage the panel. Panels generally have a built in Bypass diode to protect them in serial installations but as far as I can tell it is rare to have a blocking diode.
I lost a panel on my old boat this way.

There is a website that provides basic info on PV that I have referenced before

PVEducation
MKB53 is offline   Reply With Quote
Old 12-12-2017, 15:41   #27
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2017
Location: Montreal, QC
Boat: LUCIA 40 Maestro
Posts: 179
Re: Solar and Lucia 40

An other option...
I have grabbed the idea of an other thread (but not for a Lucia) to have fixed panels and a similar set that slide underneath.

This could avoid any overhang when "we do not want it", giving 480W with 2 Panasonic 240W, and 960W when light wind or at anchor/mooring.

This is an idea that I propose to the other Lucia owners that are planning solar installation. If other rigid (flexible have a much less durability) panels are suitable for the Lucia space aft the mail rail, please propose them.

If this please to others, I can make a research for good stainless slides and a more detailed design.
__________________
Waiting for a Lucia October 18
Falbala60 is offline   Reply With Quote
Old 12-12-2017, 20:29   #28
Registered User

Join Date: Feb 2009
Location: Sydney, Australia, Cruising Greece in the summer.
Boat: FP Lucia 40, Hull #22
Posts: 426
Re: Solar and Lucia 40

The slide out panel is an interesting idea. In my case I have 300w of flexible panels set in the "tray". My new panels will go over this area and if they were to slide out that would allow the flexi panels to work as well.
I was planning to relocate the flexi panels to another spot but will consider whether a slide is an option. Or a set of hinged rods.

I have my flagpole fixed behind the panel so this would have to move for a start.
MKB53 is offline   Reply With Quote
Old 13-12-2017, 07:59   #29
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2017
Location: Montreal, QC
Boat: LUCIA 40 Maestro
Posts: 179
Re: Solar and Lucia 40

Quote:
Originally Posted by MKB53 View Post
The slide out panel is an interesting idea. In my case I have 300w of flexible panels set in the "tray". My new panels will go over this area and if they were to slide out that would allow the flexi panels to work as well.

I was planning to relocate the flexi panels to another spot but will consider whether a slide is an option. Or a set of hinged rods.



I have my flagpole fixed behind the panel so this would have to move for a start.


If a slide like this is OK (they mentioned for marine application and with that price this not an IKEA one) I will make a design.

https://www.ovisonline.com/28-Heavy-...0lb-P1835.aspx

The only thing I miss is the true 3D shape of the bimini, I did one with scaled pictures in the 3 planes... but not for manufacturing !
If I would have it
... OR ...
a 3D scan of the aft and bimini would be great :-)
__________________
Waiting for a Lucia October 18
Falbala60 is offline   Reply With Quote
Old 24-12-2017, 14:17   #30
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2017
Location: Montreal, QC
Boat: LUCIA 40 Maestro
Posts: 179
Re: Solar and Lucia 40

Going deeper in the analysis of how to get the best solar installation on a Lucia, I stole the idea of having part of the installation that is removable with a sliding drawer.

- this can limit the overhang and keep the "design" of the aft part of the Lucia
- I found, until now that the Panasonic N245 can make it very sleek... open to any other suggestions.
- the slide are Sugatsune 5302-700 or 800 depending the distance between panels to reduce possible shading.... capacity 140# x 2 = 280# ... which is quite OK if not used at see.
Attached Thumbnails
Click image for larger version

Name:	Lucia 40 Tiroir Panasonic 7.jpg
Views:	81
Size:	135.2 KB
ID:	160965   Click image for larger version

Name:	Lucia 40 Tiroir Panasonic 8.jpg
Views:	89
Size:	129.7 KB
ID:	160966  

Click image for larger version

Name:	Lucia 40 Tiroir Panasonic 3.jpg
Views:	81
Size:	166.9 KB
ID:	160967   Click image for larger version

Name:	Lucia 40 Tiroir Panasonic 4.jpg
Views:	84
Size:	164.1 KB
ID:	160968  

Click image for larger version

Name:	Lucia 40 Tiroir Panasonic 5.jpg
Views:	80
Size:	251.6 KB
ID:	160969   Click image for larger version

Name:	Lucia 40 Tiroir Panasonic 6.jpg
Views:	86
Size:	269.9 KB
ID:	160970  

__________________

__________________
Waiting for a Lucia October 18
Falbala60 is offline   Reply With Quote
Reply

Tags
solar

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bareboat chartering St Lucia and Martinique compassrose88 General Sailing Forum 1 19-08-2012 13:47
Crew Available: 32yr Aussie seeking Caribbean to Pacific (Oz?) passage - In St Lucia and ready to go. rumoclock Crew Archives 6 03-03-2012 12:57
Crew Wanted: Needing Crew for 45 Foot Catamaran St Lucia to OZ and Beyond Liseron Crew Archives 21 31-01-2012 09:08
Take a Moment to Pray for St. Lucia and Martinique bearphish Cruising News & Events 1 17-08-2007 04:44



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 08:35.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.