That sounds like a reasonable size, pitch and blade number. Any idea where I might find such a right hand prop with a 1¡± shaft?
tom@... 850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
toggle quoted message
Show quoted text
On Mar 7, 2020, at 18:32, rjtrane via Groups.Io <rjtrane@...> wrote:
? I have Motenergy 10 kW motors from Thunderstruck on my 40¡¯ 23,000# catamaran. My max speed is 6.3 knots in a calm ?continuous max speed is 6 knots at about 3/4 power ?
I assume your motor is 48v? What is the max RPM? Mine turns 2,400 RPM. Based on prior sea trials I decided a max prop RPM should be 800 RPM. Therefore I installed a 3:1 reduction. I have 18¡± diameter X 14¡± pitch 4 blade props.
if your motor turns 4,800 RPM I¡¯d suggest a 3:1 reduction and a 3 or 4 blade prop close to 18¡± diameter. Your 2-blade just doesn¡¯t have the surface area to get the maximum power of your motor to the water.?
|
Part of the problem with heading into a 15 knot wind with gusts...? ?First off it's a sailboat, they get blown around while motoring.? Secondly, you just don't have enough headway.? Unlike our ICE counterparts you're in a boat that utilizes an electric drive so like all of us, you're light on the throttle in order to extend range. Ask me how I know this :)
Prop, on my 28', currently running a 4 bladed 12x12.5 meant for a wakeboard boat. I started out with a 14x10 3 bladed. Imo, get rid of that 2 bladed prop.
On Sat, Mar 7, 2020, 5:31 PM < tom@...> wrote: I¡¯ve got an O¡¯Day 30¡¯ with a Thunderstruck 10K motor, 2:1 reduction and 4 AGM batteries.? I¡¯ve got the original 16¡± pitch 9, 2 blade prop that was powered by a 16HP Universal when the boat was built. I¡¯m convinced there must be something more efficient. I can¡¯t even maintain a course into a 15mph wind. ?I¡¯m with Jeff looking for suggestions
tom@...850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
|
Re: CAN to NMEA2000 motor data
Are LiFePO4 prices actually coming down? ?What did you pay for your installed batteries? ?
I purchased 8kWh batteries new in 2009. ?The sixteen Thunder Sky TS-LFP160AHA 160Ah cells, including purchase price, tax, shipping to my driveway, inter-cell braided connectors, and autonomous mini-MBS boards were right around $3600 or about $0.45 per Wh. ?The bare cells were $3326.60 delivered. ?The connectors and BMS boards came from another vendor. ?None of my recent research has come up with a comparable price, let alone cheaper.
People keep saying that our batteries are getting cheaper, but 10 years after I bought mine, I¡¯m not seeing it.
Fair winds,
Eric
1964 Bermuda 30 Ketch, 5.5kW drive, 8kWh LiFePO4 batteries
Marina del Rey, CA
|
I have Motenergy 10 kW motors from Thunderstruck on my 40¡¯ 23,000# catamaran. My max speed is 6.3 knots in a calm ?continuous max speed is 6 knots at about 3/4 power ?
I assume your motor is 48v? What is the max RPM? Mine turns 2,400 RPM. Based on prior sea trials I decided a max prop RPM should be 800 RPM. Therefore I installed a 3:1 reduction. I have 18¡± diameter X 14¡± pitch 4 blade props.
if your motor turns 4,800 RPM I¡¯d suggest a 3:1 reduction and a 3 or 4 blade prop close to 18¡± diameter. Your 2-blade just doesn¡¯t have the surface area to get the maximum power of your motor to the water.?
|
I¡¯ve got an O¡¯Day 30¡¯ with a Thunderstruck 10K motor, 2:1 reduction and 4 AGM batteries. ?I¡¯ve got the original 16¡± pitch 9, 2 blade prop that was powered by a 16HP Universal when the boat was built. I¡¯m convinced there must be something more efficient. I can¡¯t even maintain a course into a 15mph wind. ?I¡¯m with Jeff looking for suggestions
tom@... 850 259-8600
Thos. Stein Inc.? 78B Ricker Ave.? Santa Rosa Beach, FL 32459
Florida underground utility contractor license RU0058046 Florida plumbing contractor license RF0057995
|
Re: CAN to NMEA2000 motor data
I have folding racing prop. No regen here. I had 2/1. Switched to 3/1. For better air cooling. I run 2200 rpm. But Will not be the same with your prop. You need to run and do a little observed performance. ?Cheers?
toggle quoted message
Show quoted text
On Mar 7, 2020, at 11:14 AM, Jeff Doornbos via Groups.Io < jpgroupfinancial@...> wrote: I have a Cat 30 as well and just put in the same system with AGM batteries.?
What prop are you using and what¡¯s the pitch??
I¡¯m also trying to figure out the best engine RPMs to run while use a 2:1 gear reduction. Any suggestions on proper Engine RPMs?
Many thanks! Jeff On Mar 7, 2020, at 10:33 AM, L Schmitz via Groups.Io <terminalift@...> wrote:
?
What motor do you have???I have 10kw thunderstruck kit. I am very pleased with it. My sailboat is 40 ft. But race boat is about same weight as your cat 30?I built my battery system lifepo4 cells. 6 to 7 hrs run time at close to hull speed. Charging overnight when needed No diesel or bilge smells. ?All good here. ?cheers Best regards, Larry Schmitz
On Saturday, March 7, 2020, 7:20 AM, Peter Zephyr <Pcbeckett@...> wrote: I have an electric engine in my Catalina 30 and it uses a Sevcon Gen4 controller.? Currently I have a Sevcon Clearview display that connects to what looks like an OBD-II plug on the Sevcon and this displays a lot of data like motor speed, Voltage and Amps.? The display also has the capability of updating parameters in the Sevcon controller.? I want to be able to display the engine speed and possibly the Volts and Amps being used on my Garmin GPSMap 942 chart plotter which is connected to NMEA2000 network.? On the network I have connected my wind and direction device as well as water depth and temp device.? I have been looking at which has a CANopen to NMEA2000 device and wondered if anyone has tried interfacing a Sevcon Gen 4 controller to NMEA200 network?
Rgds? Peter
|
Re: CAN to NMEA2000 motor data
I have a Cat 30 as well and just put in the same system with AGM batteries.?
What prop are you using and what¡¯s the pitch??
I¡¯m also trying to figure out the best engine RPMs to run while use a 2:1 gear reduction. Any suggestions on proper Engine RPMs?
Many thanks! Jeff
toggle quoted message
Show quoted text
On Mar 7, 2020, at 10:33 AM, L Schmitz via Groups.Io <terminalift@...> wrote:
?
What motor do you have???I have 10kw thunderstruck kit. I am very pleased with it. My sailboat is 40 ft. But race boat is about same weight as your cat 30?I built my battery system lifepo4 cells. 6 to 7 hrs run time at close to hull speed. Charging overnight when needed No diesel or bilge smells. ?All good here. ?cheers Best regards, Larry Schmitz
On Saturday, March 7, 2020, 7:20 AM, Peter Zephyr <Pcbeckett@...> wrote: I have an electric engine in my Catalina 30 and it uses a Sevcon Gen4 controller.? Currently I have a Sevcon Clearview display that connects to what looks like an OBD-II plug on the Sevcon and this displays a lot of data like motor speed, Voltage and Amps.? The display also has the capability of updating parameters in the Sevcon controller.? I want to be able to display the engine speed and possibly the Volts and Amps being used on my Garmin GPSMap 942 chart plotter which is connected to NMEA2000 network.? On the network I have connected my wind and direction device as well as water depth and temp device.? I have been looking at ADFWEB.com which has a CANopen to NMEA2000 device and wondered if anyone has tried interfacing a Sevcon Gen 4 controller to NMEA200 network?
Rgds? Peter
|
Re: CAN to NMEA2000 motor data
Hello Peter,? I started with 4 220 ah AGM batteries. My upgrade to lifepo4 was pretty amazing. Prices are coming down on the lifepo4? You should consider them when the time comes for replacement.? best regards Larry
?Terminalift LLC 9444 Mission Park Place Santee, CA 92071 Ph: (619) 562-0355 F: (619) 562-2060
On Saturday, March 7, 2020, 09:15:23 AM PST, Peter Zephyr <pcbeckett@...> wrote:
Hi Larry, I got my motor from Electroprop.com almost 3 years ago.? It was a complete kit with everything I needed including batteries. ? I have 4? AGM batteries rated at 210 AH each from Northstar and can run at 4 knots for 12 hours which runs the batteries down to 50% (Conservative estimate).? I have also found that if I turn the motor on while sailing in 10 knots or more the system will regen and charge the batteries at 1-2 amps. ? I do shore based charging and have Mastervolt chargers. ? I too am very pleased that I did the conversion as you say no diesel fumes and it always starts.. ? Rgds Peter ?
From: [email protected] < [email protected]> On Behalf Of L Schmitz via Groups.Io Sent: Saturday, March 7, 2020 11:33 AM To: [email protected]Subject: Re: [electricboats] CAN to NMEA2000 motor data ? What motor do you have???I have 10kw thunderstruck kit. I am very pleased with it. My sailboat is 40 ft. But race boat is about same weight as your cat 30?I built my battery system lifepo4 cells. 6 to 7 hrs run time at close to hull speed. Charging overnight when needed No diesel or bilge smells. ?All good here. ?cheers
? On Saturday, March 7, 2020, 7:20 AM, Peter Zephyr <Pcbeckett@...> wrote: I have an electric engine in my Catalina 30 and it uses a Sevcon Gen4 controller.? Currently I have a Sevcon Clearview display that connects to what looks like an OBD-II plug on the Sevcon and this displays a lot of data like motor speed, Voltage and Amps.? The display also has the capability of updating parameters in the Sevcon controller.? I want to be able to display the engine speed and possibly the Volts and Amps being used on my Garmin GPSMap 942 chart plotter which is connected to NMEA2000 network.? On the network I have connected my wind and direction device as well as water depth and temp device.? I have been looking at ADFWEB.com which has a CANopen to NMEA2000 device and wondered if anyone has tried interfacing a Sevcon Gen 4 controller to NMEA200 network?
Rgds? Peter
|
Re: CAN to NMEA2000 motor data
Hello Mike? ?If you are ever around, I will show it to you. It is at SWYC in San Diego. I put 360 ah system in the engine compartment. I also changed the gear reduction so I can run at a higher rpm for more efficiency. I had to put a placebo box filled with sand? behind them to keep my weight the same as the removed engine and fuel tank.? best regards Larry ?Terminalift LLC 9444 Mission Park Place Santee, CA 92071 Ph: (619) 562-0355 F: (619) 562-2060
On Saturday, March 7, 2020, 09:13:53 AM PST, Mike Gunning <mike@...> wrote:
Larry,
How large a battery pack do you have on the Andrews?? We have found the old racers such as your boat and the Olson and others are easily pushed and exceed our "cruising boat" computer model.
Typically the Catalina 30 has space for about 300ah at 48v placing the batteries in the space of the old fuel tank and also in the motor compartment.
Mike
Electric Yacht
|
Re: CAN to NMEA2000 motor data
Hello? Ric,? I built 4? 12 v batteries with 3.2 v 90ah cells? ?4 S 4 P? ?360 ah? ?I then connected in series for 48v? with one bms for the whole system. I can monitor the batteries while underway on my phone. It is really nifty set up.? Not to hard to put together. You just have to make sure no moisture gets in the boxes.? ?best regards Larry
?Terminalift LLC 9444 Mission Park Place Santee, CA 92071 Ph: (619) 562-0355 F: (619) 562-2060
On Saturday, March 7, 2020, 09:13:45 AM PST, Ric Sanders <rsandersemail@...> wrote:
Hi Larry, What capacity is your battery bank? Ric Sanders?
|
Re: CAN to NMEA2000 motor data
Hi Larry, I got my motor from Electroprop.com almost 3 years ago.? It was a complete kit with everything I needed including batteries. ? I have 4? AGM batteries rated at 210 AH each from Northstar and can run at 4 knots for 12 hours which runs the batteries down to 50% (Conservative estimate).? I have also found that if I turn the motor on while sailing in 10 knots or more the system will regen and charge the batteries at 1-2 amps. ? I do shore based charging and have Mastervolt chargers. ? I too am very pleased that I did the conversion as you say no diesel fumes and it always starts.. ? Rgds Peter ?
toggle quoted message
Show quoted text
From: [email protected] < [email protected]> On Behalf Of L Schmitz via Groups.Io Sent: Saturday, March 7, 2020 11:33 AM To: [email protected]Subject: Re: [electricboats] CAN to NMEA2000 motor data ? What motor do you have???I have 10kw thunderstruck kit. I am very pleased with it. My sailboat is 40 ft. But race boat is about same weight as your cat 30?I built my battery system lifepo4 cells. 6 to 7 hrs run time at close to hull speed. Charging overnight when needed No diesel or bilge smells. ?All good here. ?cheers
? On Saturday, March 7, 2020, 7:20 AM, Peter Zephyr <Pcbeckett@...> wrote: I have an electric engine in my Catalina 30 and it uses a Sevcon Gen4 controller.? Currently I have a Sevcon Clearview display that connects to what looks like an OBD-II plug on the Sevcon and this displays a lot of data like motor speed, Voltage and Amps.? The display also has the capability of updating parameters in the Sevcon controller.? I want to be able to display the engine speed and possibly the Volts and Amps being used on my Garmin GPSMap 942 chart plotter which is connected to NMEA2000 network.? On the network I have connected my wind and direction device as well as water depth and temp device.? I have been looking at ADFWEB.com which has a CANopen to NMEA2000 device and wondered if anyone has tried interfacing a Sevcon Gen 4 controller to NMEA200 network?
Rgds? Peter
|
Re: CAN to NMEA2000 motor data
Larry,
How large a battery pack do you have on the Andrews?? We have found the old racers such as your boat and the Olson and others are easily pushed and exceed our "cruising boat" computer model.
Typically the Catalina 30 has space for about 300ah at 48v placing the batteries in the space of the old fuel tank and also in the motor compartment.
Mike
Electric Yacht
|
Re: CAN to NMEA2000 motor data
Hi Larry, What capacity is your battery bank? Ric Sanders?
|
Re: CAN to NMEA2000 motor data
What motor do you have???I have 10kw thunderstruck kit. I am very pleased with it. My sailboat is 40 ft. But race boat is about same weight as your cat 30?I built my battery system lifepo4 cells. 6 to 7 hrs run time at close to hull speed. Charging overnight when needed No diesel or bilge smells. ?All good here. ?cheers Best regards, Larry Schmitz
On Saturday, March 7, 2020, 7:20 AM, Peter Zephyr <Pcbeckett@...> wrote: I have an electric engine in my Catalina 30 and it uses a Sevcon Gen4 controller.? Currently I have a Sevcon Clearview display that connects to what looks like an OBD-II plug on the Sevcon and this displays a lot of data like motor speed, Voltage and Amps.? The display also has the capability of updating parameters in the Sevcon controller.? I want to be able to display the engine speed and possibly the Volts and Amps being used on my Garmin GPSMap 942 chart plotter which is connected to NMEA2000 network.? On the network I have connected my wind and direction device as well as water depth and temp device.? I have been looking at ADFWEB.com which has a CANopen to NMEA2000 device and wondered if anyone has tried interfacing a Sevcon Gen 4 controller to NMEA200 network?
Rgds? Peter
|
CAN to NMEA2000 motor data
I have an electric engine in my Catalina 30 and it uses a Sevcon Gen4 controller.? Currently I have a Sevcon Clearview display that connects to what looks like an OBD-II plug on the Sevcon and this displays a lot of data like motor speed, Voltage and Amps.? The display also has the capability of updating parameters in the Sevcon controller.? I want to be able to display the engine speed and possibly the Volts and Amps being used on my Garmin GPSMap 942 chart plotter which is connected to NMEA2000 network.? On the network I have connected my wind and direction device as well as water depth and temp device.? I have been looking at ADFWEB.com which has a CANopen to NMEA2000 device and wondered if anyone has tried interfacing a Sevcon Gen 4 controller to NMEA200 network?
Rgds? Peter
|
Re: Electrically powered dingy on a mothership sailboat that only anchors
actually Bill just a single cell being shaded brings down the panel. I suggest?a controller for every panel. I have seen panels shaded by a tree that over time discolor due to heat. In fact a panel that is shaded by a sail completely is better off, but will produce very little.
You can look at solar?panels thinking?of the panel, or cell as the cell in a battery bank. One cell goes and the whole bank goes down. Only thing you can do is electrically isolate every battery/panel. This is done with each panel having it's own controller.
The controllers can all feed the same battery bank.
so one more time for clarity. each solar panel gets it's own controller and all controllers feed the same bank. If you have a BMS/ battery monitor you will see a great increase of power going to the bank.
Kevin
On Fri, Mar 6, 2020 at 7:47 PM Bill Farina < bill@...> wrote:
The reason that I asked was because I'm in the planning stages of
purchasing a sailboat and I'm kind of fond of my electricity. With
all the things on a sailboat that can shadow a solar panel and since
a shadow over a single panel can severely attenuate the output of
all the panels that are ganged together with that panel, it makes
sense to wire each panel separately into the controller so that this
doesn't happen. Most of the controllers that I'm seeing have space
for three pairs of wire. I've seen a couple of examples where there
are two or three of these controllers connected together. In my mind
it's better to have a single controller to handle all the electrical
generation sources on the boat. (This conversation seems to be
wandering way off course and I'm not helping things.)
On 3/6/2020 1:42 AM,
mosslandingcreatures wrote:
Because I¡¯m a layman with limited electrical
expertise I can only say ¡°I¡¯ve heard it¡¯s best that the
electrical harvest devises be the same as each if either
paralleled or series connected together or the controller will
be confused or the stronger or weaker ?of the two will bring
the other down¡±
On Thu, Mar 5, 2020 at 9:50
PM Bill Farina < bill@...> wrote:
Speaking of shadowing, if you have a bunch of solar
panels... maybe a wind generator and regen, what do you
do? Do you take a number of controllers and gang them
together, or is there a controller with maybe 10-15 inputs
that someone could recommend for not a huge price?
On 3/5/2020 2:46 PM, Kevin Pemberton wrote:
I would agree. Most mounting must be
industrial quality. After seeing almost anything fly
off deck though well lashed down, manual setting works
best.
My experiments tell me in a stationary
setting tilting panels every 1 or 2 hours will yield
enough power that any other effort is just wasted.?
Another issue is shadowing. When one
panel is partly shaded,the whole is brought
down...For this?reason I recommend a controller for
every panel in the system.?
I? have more but I am not on the
computer.?
Uni axis currently tilted
manually. Wish I knew of a durable reliable
automatic tracker but everything I see online
seems like it won¡¯t hold up to Ocean cruising
environment. Do you know of one? I was just
introduced to the Victron smart Cyrix. It seems
like the answer? Thank you for your calcs and
assistance! Let me know what you think.
Your post raises more
questions.?
Do the panels follow the
sun?... my panels when flat produce 1/4
the power.? At best 4/5ths of rated
power.?
Just because the voltage is
up mid day tells you nothing. When you
turn the panel switch off what is the
battery bank reading?
The last 20% of a lead acid
bank can take more than ten hours.
800w motor, 1000w panel.
2hrs at 800w=1600w. Real numbers on the
array bet more like 300w if flat.?
Check the numbers for your
installation.?
If dink is high priority,
consider splitting the array and
dedicating some to the dink. Or add panels
to the dink.?
Kevin
My first time
on this wonderful info site. I thought my
project would be easy. Mothership sailboat
has 1k solar power with a 3k Victron
inverter Charger powering the usual refer,
autopilot, dc water maker and the like.
House bank is 800 Ah. She has a Honda 2000
generator but I would dearly want not have
to use it. With typical use and southern
California/Mexico daylight and uniaxis pv
tilt I hit float usually by mid day or so.
I want my house bank to never dip below
50% DOD. I want componentry to see the
house floating and send remaining power to
a separate dedicated inverter??? To power
the 120 v charger to drive 200 Ah lithium
battery onboard the ding?... Echo charger
relay??? I want rapid as possible charging
of the dingy battery so I might use the
800 watt dingy motor for 2 hours every
day. Any ideas ladies and gentlemen??
|
Re: Electrically powered dingy on a mothership sailboat that only anchors
The reason that I asked was because I'm in the planning stages of
purchasing a sailboat and I'm kind of fond of my electricity. With
all the things on a sailboat that can shadow a solar panel and since
a shadow over a single panel can severely attenuate the output of
all the panels that are ganged together with that panel, it makes
sense to wire each panel separately into the controller so that this
doesn't happen. Most of the controllers that I'm seeing have space
for three pairs of wire. I've seen a couple of examples where there
are two or three of these controllers connected together. In my mind
it's better to have a single controller to handle all the electrical
generation sources on the boat. (This conversation seems to be
wandering way off course and I'm not helping things.)
On 3/6/2020 1:42 AM,
mosslandingcreatures wrote:
toggle quoted message
Show quoted text
Because I¡¯m a layman with limited electrical
expertise I can only say ¡°I¡¯ve heard it¡¯s best that the
electrical harvest devises be the same as each if either
paralleled or series connected together or the controller will
be confused or the stronger or weaker ?of the two will bring
the other down¡±
On Thu, Mar 5, 2020 at 9:50
PM Bill Farina < bill@...> wrote:
Speaking of shadowing, if you have a bunch of solar
panels... maybe a wind generator and regen, what do you
do? Do you take a number of controllers and gang them
together, or is there a controller with maybe 10-15 inputs
that someone could recommend for not a huge price?
On 3/5/2020 2:46 PM, Kevin Pemberton wrote:
I would agree. Most mounting must be
industrial quality. After seeing almost anything fly
off deck though well lashed down, manual setting works
best.
My experiments tell me in a stationary
setting tilting panels every 1 or 2 hours will yield
enough power that any other effort is just wasted.?
Another issue is shadowing. When one
panel is partly shaded,the whole is brought
down...For this?reason I recommend a controller for
every panel in the system.?
I? have more but I am not on the
computer.?
Uni axis currently tilted
manually. Wish I knew of a durable reliable
automatic tracker but everything I see online
seems like it won¡¯t hold up to Ocean cruising
environment. Do you know of one? I was just
introduced to the Victron smart Cyrix. It seems
like the answer? Thank you for your calcs and
assistance! Let me know what you think.
Your post raises more
questions.?
Do the panels follow the
sun?... my panels when flat produce 1/4
the power.? At best 4/5ths of rated
power.?
Just because the voltage is
up mid day tells you nothing. When you
turn the panel switch off what is the
battery bank reading?
The last 20% of a lead acid
bank can take more than ten hours.
800w motor, 1000w panel.
2hrs at 800w=1600w. Real numbers on the
array bet more like 300w if flat.?
Check the numbers for your
installation.?
If dink is high priority,
consider splitting the array and
dedicating some to the dink. Or add panels
to the dink.?
Kevin
My first time
on this wonderful info site. I thought my
project would be easy. Mothership sailboat
has 1k solar power with a 3k Victron
inverter Charger powering the usual refer,
autopilot, dc water maker and the like.
House bank is 800 Ah. She has a Honda 2000
generator but I would dearly want not have
to use it. With typical use and southern
California/Mexico daylight and uniaxis pv
tilt I hit float usually by mid day or so.
I want my house bank to never dip below
50% DOD. I want componentry to see the
house floating and send remaining power to
a separate dedicated inverter??? To power
the 120 v charger to drive 200 Ah lithium
battery onboard the ding?... Echo charger
relay??? I want rapid as possible charging
of the dingy battery so I might use the
800 watt dingy motor for 2 hours every
day. Any ideas ladies and gentlemen??
|
Re: Electrically powered dingy on a mothership sailboat that only anchors
Because I¡¯m a layman with limited electrical expertise I can only say ¡°I¡¯ve heard it¡¯s best that the electrical harvest devises be the same as each if either paralleled or series connected together or the controller will be confused or the stronger or weaker ?of the two will bring the other down¡±
On Thu, Mar 5, 2020 at 9:50 PM Bill Farina < bill@...> wrote:
Speaking of shadowing, if you have a bunch of solar panels... maybe
a wind generator and regen, what do you do? Do you take a number of
controllers and gang them together, or is there a controller with
maybe 10-15 inputs that someone could recommend for not a huge
price?
On 3/5/2020 2:46 PM, Kevin Pemberton
wrote:
I would agree. Most mounting must be industrial
quality. After seeing almost anything fly off deck though well
lashed down, manual setting works best.
My experiments tell me in a stationary setting
tilting panels every 1 or 2 hours will yield enough power that
any other effort is just wasted.?
Another issue is shadowing. When one panel is
partly shaded,the whole is brought down...For this?reason I
recommend a controller for every panel in the system.?
I? have more but I am not on the computer.?
Uni axis currently tilted manually. Wish I
knew of a durable reliable automatic tracker but
everything I see online seems like it won¡¯t hold up to
Ocean cruising environment. Do you know of one? I was just
introduced to the Victron smart Cyrix. It seems like the
answer? Thank you for your calcs and assistance! Let me
know what you think.
Your post raises more questions.?
Do the panels follow the sun?... my
panels when flat produce 1/4 the power.? At best
4/5ths of rated power.?
Just because the voltage is up mid day
tells you nothing. When you turn the panel switch
off what is the battery bank reading?
The last 20% of a lead acid bank can
take more than ten hours.
800w motor, 1000w panel. 2hrs at
800w=1600w. Real numbers on the array bet more like
300w if flat.?
Check the numbers for your
installation.?
If dink is high priority, consider
splitting the array and dedicating some to the dink.
Or add panels to the dink.?
Kevin
My
first time on this wonderful info site. I thought my
project would be easy. Mothership sailboat has 1k
solar power with a 3k Victron inverter Charger
powering the usual refer, autopilot, dc water maker
and the like. House bank is 800 Ah. She has a Honda
2000 generator but I would dearly want not have to
use it. With typical use and southern
California/Mexico daylight and uniaxis pv tilt I hit
float usually by mid day or so. I want my house bank
to never dip below 50% DOD. I want componentry to
see the house floating and send remaining power to a
separate dedicated inverter??? To power the 120 v
charger to drive 200 Ah lithium battery onboard the
ding?... Echo charger relay??? I want rapid as
possible charging of the dingy battery so I might
use the 800 watt dingy motor for 2 hours every day.
Any ideas ladies and gentlemen??
|
Re: Electrically powered dingy on a mothership sailboat that only anchors
Speaking of shadowing, if you have a bunch of solar panels... maybe
a wind generator and regen, what do you do? Do you take a number of
controllers and gang them together, or is there a controller with
maybe 10-15 inputs that someone could recommend for not a huge
price?
On 3/5/2020 2:46 PM, Kevin Pemberton
wrote:
toggle quoted message
Show quoted text
I would agree. Most mounting must be industrial
quality. After seeing almost anything fly off deck though well
lashed down, manual setting works best.
My experiments tell me in a stationary setting
tilting panels every 1 or 2 hours will yield enough power that
any other effort is just wasted.?
Another issue is shadowing. When one panel is
partly shaded,the whole is brought down...For this?reason I
recommend a controller for every panel in the system.?
I? have more but I am not on the computer.?
Uni axis currently tilted manually. Wish I
knew of a durable reliable automatic tracker but
everything I see online seems like it won¡¯t hold up to
Ocean cruising environment. Do you know of one? I was just
introduced to the Victron smart Cyrix. It seems like the
answer? Thank you for your calcs and assistance! Let me
know what you think.
Your post raises more questions.?
Do the panels follow the sun?... my
panels when flat produce 1/4 the power.? At best
4/5ths of rated power.?
Just because the voltage is up mid day
tells you nothing. When you turn the panel switch
off what is the battery bank reading?
The last 20% of a lead acid bank can
take more than ten hours.
800w motor, 1000w panel. 2hrs at
800w=1600w. Real numbers on the array bet more like
300w if flat.?
Check the numbers for your
installation.?
If dink is high priority, consider
splitting the array and dedicating some to the dink.
Or add panels to the dink.?
Kevin
My
first time on this wonderful info site. I thought my
project would be easy. Mothership sailboat has 1k
solar power with a 3k Victron inverter Charger
powering the usual refer, autopilot, dc water maker
and the like. House bank is 800 Ah. She has a Honda
2000 generator but I would dearly want not have to
use it. With typical use and southern
California/Mexico daylight and uniaxis pv tilt I hit
float usually by mid day or so. I want my house bank
to never dip below 50% DOD. I want componentry to
see the house floating and send remaining power to a
separate dedicated inverter??? To power the 120 v
charger to drive 200 Ah lithium battery onboard the
ding?... Echo charger relay??? I want rapid as
possible charging of the dingy battery so I might
use the 800 watt dingy motor for 2 hours every day.
Any ideas ladies and gentlemen??
|
Re: Electrically powered dingy on a mothership sailboat that only anchors
And adjusting the panels is fun. Gives an old retired guy something to do! I have 6 panels and 4 controllers so we are on the same pathway. Thank you for the coraboration!
I would agree. Most mounting must be industrial quality. After seeing almost anything fly off deck though well lashed down, manual setting works best.
My experiments tell me in a stationary setting tilting panels every 1 or 2 hours will yield enough power that any other effort is just wasted.?
Another issue is shadowing. When one panel is partly shaded,the whole is brought down...For this?reason I recommend a controller for every panel in the system.?
I? have more but I am not on the computer.?
Uni axis currently tilted manually. Wish I knew of a durable reliable automatic tracker but everything I see online seems like it won¡¯t hold up to Ocean cruising environment. Do you know of one? I was just introduced to the Victron smart Cyrix. It seems like the answer? Thank you for your calcs and assistance! Let me know what you think. Your post raises more questions.?
Do the panels follow the sun?... my panels when flat produce 1/4 the power.? At best 4/5ths of rated power.?
Just because the voltage is up mid day tells you nothing. When you turn the panel switch off what is the battery bank reading?
The last 20% of a lead acid bank can take more than ten hours.
800w motor, 1000w panel. 2hrs at 800w=1600w. Real numbers on the array bet more like 300w if flat.?
Check the numbers for your installation.?
If dink is high priority, consider splitting the array and dedicating some to the dink. Or add panels to the dink.?
Kevin
My first time on this wonderful info site. I thought my project would be easy. Mothership sailboat has 1k solar power with a 3k Victron inverter Charger powering the usual refer, autopilot, dc water maker and the like. House bank is 800 Ah. She has a Honda 2000 generator but I would dearly want not have to use it. With typical use and southern California/Mexico daylight and uniaxis pv tilt I hit float usually by mid day or so. I want my house bank to never dip below 50% DOD. I want componentry to see the house floating and send remaining power to a separate dedicated inverter??? To power the 120 v charger to drive 200 Ah lithium battery onboard the ding?... Echo charger relay??? I want rapid as possible charging of the dingy battery so I might use the 800 watt dingy motor for 2 hours every day. Any ideas ladies and gentlemen??
|
Reuben Trane
Mike Gunning
Ric Sanders