Solar panel installation - AMEL 54's


jgermain@...
 

Hello "54" owners,


I contacted the owner of a 54 who installed 4 X 150W solar panels on an Emek marine produced gantry.


He was my dock neighbour and has agreed to share the details of his installation if you are interested.


Regards and fair winds,


Jean-Pierre Germain

Eleuthera, SM 007


Alan Leslie
 

We have 3 x 200W panels on our EMEK gantry on our Super Maramu 53...also if anyone is interested we can supply details
Cheers
Alan 
Elyse
SM437


Dan Taylor
 

Alan et all,
We installed a EMEK Solar Arch and purchased 2xLG360N1C (360W/35V) panels and have a single Victron MPPT 100/30 that is rated for 880W/100V.  We are replacing 2 solar panels that were mounted on the stern starboard rail. 

I have not installed the panels or wired them yet and the arch does not have pre-drilled holes.  Can you provide details or guidance into the installation (hardware (screw type/placement), parallel/series wiring, etc) based on your installation. 

Confirm that I am still good with having a single MPPT (100/30) for the


Dan Taylor
 

...the two 360W LG Panels.

Thanks,
Dan
SV FlyGirl


Alan Leslie
 
Edited

Hi Dan,

Yes we have 3 x 200W panels wired in series so they start early and maximise the MPPT;s ability to deliver good current to the batteries
Another advantage of series wiring is the smaller gauge wire you can use, as the current from the panels in a series configuration is lower than a parallel setup.
Shadows are considered to be an issue with series wired panels but on ELyse there is ;little to create shadows on the panels out the back of the boat especially where we have sailed in the S Pacifiic. The predominant breeze is SE so the boat is anchoired facing SE, the panels are at the N end of the boat where the sun is.

The panels are mounted simply with self tapping screws. I drilled (cobalt drill) small holes through the stainless edge plate and the panel frames....moved the panels, enlarged the holes in the stainless, and then screwed the screws into the panel frames....from memory the screws are at about 400mm intervals. It doesnlt sound very secure, but it works. We have sailed thousands of miles now with that setup and nothing has come adrift.

The panels are series connected on the arch and the feed cable runs down the stbd side leg into the lazarette and then through the aft cabin cableway to exit in the aft hanging locker. Here we have a panel with circuit breakers for the Solar and wind generator as well as the wind generator regulator and the Victron MPPT 150/35.
If you wire your panels in series you need to be sure that the Victron unit is rated for more than the sum of the rated voltage of the panels. We have found that our panels can often produce higher voltages and currents than the published rating would have you believe - We have seen nearly 140V from our 3 series connected panels.

The post cct breaker outputs of the Victron MPPT and the Wind regulator are paralleled and a heavy two core cable runs from there to the battery bank +ve and shunt.
We also have the Victron Bluethooth  connection and Victron Connect App on the phone so we can monitor the solar system, as well as the Victron Bluetooth battery temperature sensor which sends temperature information to the MPPT.

It all works very well, although if it was my choice,I wouldn't bother with the wind generator, it's output is feeble in comparison to the solar, unless we're sailing in 30+ knots of breeze. 

Cheers

Alan
Elyse SM437


Ron Hynes
 

Amen with the wind generator, $2500 plus for noise!

Ron Hynes
954.319.0944

On Aug 6, 2021, at 6:23 PM, Alan Leslie <s.v.elyse@...> wrote:



[Edited Message Follows]

Hi Dan,

Yes we have 3 x 200W panels wired in series so they start early and maximise the MPPT;s ability to deliver good current to the batteries
Another advantage of series wiring is the smaller gauge wire you can use, as the current from the panels in a series configuration is lower than a parallel setup.
Shadows are considered to be an issue with series wired panels but on ELyse there is ;little to create shadows on the panels out the back of the boat especially where we have sailed in the S Pacifiic. The predominant breeze is SE so the boat is anchoired facing SE, the panels are at the N end of the boat where the sun is.

The panels are mounted simply with self tapping screws. I drilled (cobalt drill) small holes through the stainless edge plate and the panel frames....moved the panels, enlarged the holes in the stainless, and then screwed the screws into the panel frames....from memory the screws are at about 400mm intervals. It doesnlt sound very secure, but it works. We have sailed thousands of miles now with that setup and nothing has come adrift.

The panels are series connected on the arch and the feed cable runs down the stbd side leg into the lazarette and then through the aft cabin cableway to exit in the aft hanging locker. Here we have a panel with circuit breakers for the Solar and wind generator as well as the wind generator regulator and the Victron MPPT 150/35.
If you wire your panels in series you need to be sure that the Victron unit is rated for more than the sum of the rated voltage of the panels. We have found that our panels can often produce higher voltages and currents than the published rating would have you believe - We have seen nearly 140V from our 3 series connected panels.

The post cct breaker outputs of the Victron MPPT and the Wind regulator are paralleled and a heavy two core cable runs from there to the battery bank +ve and shunt.
We also have the Victron Bluethooth  connection and Victron Connect App on the phone so we can monitor the solar system, as well as the Victron Bluetooth battery temperature sensor which sends temperature information to the MPPT.

It all works very well, although if it was my choice,I wouldn't bother with the wind generator, it's output is feeble in comparison to the solar, unless we're sailing in 30+ knots of breeze. 

Cheers

Alan
Elyse SM437


Jeroen Jeltes
 

we recently installed 3x400wp Sunpower panels on a ss frame on top of the davits, with 3 x victron mppt 100/30 controllers. great improvement. at noon the batteries are 100% we only need the gen.for waterheater and washingmachine.


Nicolas Klene
 

Hello Jeroen
just to let you know I just did the same , 3x400w sunpower solar panel but with only one 150-60 MPPT…what an improvement!!
--
Nicolas Klene
DarNico
SM2K # 471
In Marseille


Matt & Michelle Day, SM#208 SV Talia
 

Jeroen/Nicolas,

Where did you purchase your Sunpower panels?  What are the dimensions (assume 60 cell)?

I find the output of 3 standard 60-cell residential panels to be desirable.  However, I am concerned the stern of the boat may become a Nimitz Aircraft Carrier landing deck.  Have you experienced any issues?  Can you share pictures?

Many thanks to you both.

Matt Day
SM#209 SV Talia 


Nicolas Klene
 

On Sat, Aug 14, 2021 at 06:43 PM, Matt & Michelle Day, SM#208 SV Talia wrote:
Jeroen/Nicolas,

Where did you purchase your Sunpower panels?  What are the dimensions (assume 60 cell)?

I find the output of 3 standard 60-cell residential panels to be desirable.  However, I am concerned the stern of the boat may become a Nimitz Aircraft Carrier landing deck.  Have you experienced any issues?  Can you share pictures?

Many thanks to you both.

Matt Day
SM#209 SV Talia 

 Hi Matt
My panels where bought locally in Marseille south of France, there size is 1690mm x 1046mm.
The arch has been made to accommodate 3 off them.
Not quite Nimitz class but close 
--
Nicolas Klene
DarNico
SM2K # 471
In Marseille


Jeroen Jeltes
 

please find herewith picture of 3x400wp sunpower. they are 50cm above the davits, in-line with the mizzen boom. 


Dan Carlson
 

Hi Matt, 

We have paid a lot of attention to our consumption habits over our years of cruising and we went with 2 @ 385w LG panels as we did not want to increase the size on the back arch. We still use the generator for the water maker, and split our cooking between the propane stove and an induction hob. 

The other big gain for us was installing 400AH of lithium batteries to essentially triple the amount of usable storage. 

We also installed a 3000watt inverter which can support our modest 230v needs. That includes routinely running the washing machine, or the induction hob, and on several occasions we have run an ac unit for several hours in the evening or the dishwasher. We only turn the inverter on when we need it to save on the residual draw.

The key is to analyse your needs/habits and build your system out to best meet that. At anchor we consume about 130ah per day (3200watts)

Best regards, Daniel and Lori Carlson on sv BeBe, sm #387

On Wed, Aug 18, 2021, 3:21 AM Jeroen Jeltes <fidelis@...> wrote:
please find herewith picture of 3x400wp sunpower. they are 50cm above the davits, in-line with the mizzen boom.