solar recommendations - Page 2 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 


Like Tree14Likes
Reply
 
LinkBack Thread Tools
  #11  
Old 07-02-2014
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,282
Thanks: 0
Thanked 79 Times in 70 Posts
Rep Power: 8
mitiempo will become famous soon enough mitiempo will become famous soon enough
Re: solar recommendations

Quote:
Originally Posted by andyselzn View Post
Sunforce seems to have 80, 100, and 150W for 12volt systems. No other options at this site. Sunforce 100 Watt Crystalline Solar Panel
That is a bit pricy. I sell a 100 watt flexible panel with the same output for $399 Cdn. 85 watt aluminum framed for $299 Cdn.

Here is a better source: 1 to 100 Watt Solar Electric Panels at Arizona Wind and Sun.
andyselzn likes this.
__________________
Brian
Living aboard in Victoria Harbour

Last edited by mitiempo; 07-09-2014 at 12:39 AM.
Reply With Quote Quick reply to this message Share with Facebook
The Following User Says Thank You to mitiempo For This Useful Post:
andyselzn (07-04-2014)
  #12  
Old 07-02-2014
aeventyr60's Avatar
Junior Member
 
Join Date: Jun 2011
Location: Andaman Sea
Posts: 1,660
Thanks: 7
Thanked 36 Times in 34 Posts
Rep Power: 4
aeventyr60 is on a distinguished road
Re: solar recommendations

I've had Kyocera panels on my boat for 15 years. Still putting out full power. Tough frame for mounting. Good cable grommets that don't leak. Maybe a bit more expensive,but worth it for the long term.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



"Your dreams minus your doubts equals your net worth"

Life is a short journey, filled with emptiness and pain. Get all the sailing and booty you can.
Reply With Quote Quick reply to this message Share with Facebook
  #13  
Old 07-02-2014
kwaltersmi's Avatar
Broad Reachin'
 
Join Date: Aug 2006
Location: Grand Rapids, Michigan
Posts: 1,891
Thanks: 1
Thanked 13 Times in 13 Posts
Rep Power: 9
kwaltersmi is on a distinguished road
Re: solar recommendations

I've got a rollable 14W panel from PowerFilm that's durable and well-made. I believe they make rollable panels up to 60W.
__________________
Catalina 34

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #14  
Old 07-02-2014
Senior Member
 
Join Date: Aug 2007
Posts: 188
Thanks: 0
Thanked 8 Times in 5 Posts
Rep Power: 8
hriehl1 is on a distinguished road
Re: solar recommendations

It is not so much the size of your batteries... it is your pattern of using the boat. How many amp-hours are you consuming between charges?

First, I am assuming you stow the panels while underway in a smaller boat... they'd be in the way underfoot.

If you're on a 5-day cruise, sailing hard every day with instruments, VHF, TP22, etc., then spending the evenings at anchor listening to tunes and using lights... then you'll have lots of amp-hours to recoup once you do place the panels in sunlight service.

If your use is more of weekend use, maybe two daysails surrounding one overnight evening at anchor, you have much less to recoup.

Last, when you do charge via panel, how long before you're using the boat again? If the boat will be idle and charging for days, a smaller panel should suffice. If you'll be right back out in a day, a larger panel is called for.

For what it is worth, on my 28-footer with similar equipment to yours, my weekend-use pattern is easily-supported by one Group 27 90AH deep cycle battery recharged during the work week with a 30 watt panel ($65 on eBay). My battery very rarely gets below 12.55 volts... and after a charge typically reads in the low 12.7s.
andyselzn likes this.
Reply With Quote Quick reply to this message Share with Facebook
  #15  
Old 07-02-2014
Member
 
Join Date: May 2014
Posts: 74
Thanks: 12
Thanked 2 Times in 2 Posts
Rep Power: 1
andyselzn is on a distinguished road
Re: solar recommendations

The plan is to cross from SF to Hawaii some day. That is about 20 days of solar only power for the devices mentioned. So planning accordingly.
Reply With Quote Quick reply to this message Share with Facebook
  #16  
Old 07-02-2014
Alex W's Avatar
no longer reading SailNet
 
Join Date: Oct 2012
Posts: 2,309
Thanks: 2
Thanked 139 Times in 133 Posts
Rep Power: 3
Alex W is on a distinguished road
Re: solar recommendations

Quote:
Originally Posted by aeventyr60 View Post
I've had Kyocera panels on my boat for 15 years. Still putting out full power. Tough frame for mounting. Good cable grommets that don't leak. Maybe a bit more expensive,but worth it for the long term.
They aren't make small panels suitable for small boats anymore. Their smallest panel is 140W and 60" by 26". I don't know where you would fit that on a Bristol 24 without shading.

I am using a cheap Chinese panel on my boat. I'd have preferred to buy something higher quality (or at least from a brand that I've heard of), but quality rigid small panels seems to be a very limited market these days.
andyselzn likes this.
__________________
I'm no longer participating on SailNet.
Reply With Quote Quick reply to this message Share with Facebook
  #17  
Old 07-02-2014
Junior Member
 
Join Date: Jun 2014
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
bansil is on a distinguished road
Re: solar recommendations

I have been using solarblvd.com for several projects and have been happy

Look into 2 6v 115/120Ah batteries (golf cart) for your 12v needs also, I would rather have the reserve power there(that will give you 120Ah total @ 12v)

size will be an issue on a boat, unless you can tilt them to the sun you may only get 3 or 4 hrs of decent sun per day( if that much with shadows and sails etc)

So your 100wt panel may only be putting out 8 or 9amps per day, thats not much

you may need to look at several 40/50/60 watt panels for their size and just tie them all together at the controller or daisy chain them
andyselzn likes this.
Reply With Quote Quick reply to this message Share with Facebook
  #18  
Old 07-02-2014
hellosailor's Avatar
Senior Member
 
Join Date: Apr 2006
Posts: 10,879
Thanks: 2
Thanked 101 Times in 98 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Re: solar recommendations

Good solar panels: Most are well-behaved but obedience training usually isn't expensive if they need it.(G)

Two ways to go, the expensive brand name with a specific "marine use" warranty. Or, generic Chinese product with the expectation that it will not hold up as well but is cheap enough to replace when it fails, assuming that isn't a critical time. Like halfway to Hawaii.

Congress just raised a 30%(?) tariff on the panels the Chinese have been dumping on the US market, so expect prices to go way up real soon.
Reply With Quote Quick reply to this message Share with Facebook
  #19  
Old 07-02-2014
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,282
Thanks: 0
Thanked 79 Times in 70 Posts
Rep Power: 8
mitiempo will become famous soon enough mitiempo will become famous soon enough
Re: solar recommendations

Quote:
Originally Posted by bansil View Post

Look into 2 6v 115/120Ah batteries (golf cart) for your 12v needs also, I would rather have the reserve power there(that will give you 120Ah total @ 12v)

size will be an issue on a boat, unless you can tilt them to the sun you may only get 3 or 4 hrs of decent sun per day( if that much with shadows and sails etc)

So your 100wt panel may only be putting out 8 or 9amps per day, thats not much

you may need to look at several 40/50/60 watt panels for their size and just tie them all together at the controller or daisy chain them
Golf cart batteries are 220 - 240 AH so 2 will give you 220 - 240 AH @ 12 volts.

A 100 watt panel is rated at about 5.6 amps. With a good controller (MPPT) that can get an output of about 7 amps at charging voltage. On a sunny day without panel shading you can get about 35 AH into the batteries from such a panel.

If you are only getting 8 or 9 AH per day something is wrong.
andyselzn likes this.
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Quick reply to this message Share with Facebook
  #20  
Old 07-02-2014
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,282
Thanks: 0
Thanked 79 Times in 70 Posts
Rep Power: 8
mitiempo will become famous soon enough mitiempo will become famous soon enough
Re: solar recommendations

Quote:
Originally Posted by hellosailor View Post

Two ways to go, the expensive brand name with a specific "marine use" warranty.
As far as I know Kyocera is the only panel that has a "marine" warranty. Siemans may have had one but they are gone.
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
SOLAR JACK solar panels? christian.hess Electrical Systems 0 11-13-2013 10:51 PM
Solar deck instead of solar panels ulferlingsson Gear & Maintenance 34 01-31-2013 06:03 AM
Anyone bought solar panels from Sun Solar? justonemoreproject Electrical Systems 1 04-18-2012 06:08 PM
solar recommendations please newhaul Gear & Maintenance 43 03-07-2011 09:19 AM
Recommendations, please. WinterRiver Boat Review and Purchase Forum 9 12-05-2006 09:06 PM


All times are GMT -4. The time now is 10:38 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.