Calculate Solar Cost For Your Home - geni.us/solar_reviews DIY Home Solar ( as low as $1.26/Watt) - geni.us/project_solar Supplies Renogy 100W Panel - geni.us/uSVA100 ECO-WORTHY 100W Panel - geni.us/2Fk0zAK EcoFlow Delta 2 - geni.us/u46bT EcoFlow Delta 3 Plus - geni.us/avZYM Power Analyzer - geni.us/s86J Spreadsheet Results - Spreadsheet Results - geni.us/lAvqOx DISCLAIMER: This video and description contain affiliate links, which means that if you click on one of the product links, I’ll receive a small commission.
I bought an Ecoworthy 2 panel kit a couple of years back to use with my shed. I used them on and off with a 12V battery set up (manually leaning up against the shed wall). This spring I got a roof top tent installed on my 4Runner, secured a EcoFlow 2kW power station inside, and installed the 2 Ecoworthy panels on top of the tent. I have been very pleased with their performance, easily charging up my power station just from sitting in the driveway. The most power I got from these 2x100W panels is 186W! I have a 45L SetPower 12V fridge/freezer that is always running off the power station, and it’s almost enough to run it indefinitely. I think if I had 1 more panel it would be perfect, but the concern is the 22V VOC since the EcoFlow port can only manage 50V. The size and the weight of the Ecoworthy panels are perfect, since my tent can only 50 lbs of mobile weight. All in all, for a $160 purchase 2 yrs ago, they have been great, still providing 30-40W on very overcast days (fridge uses an average of 32W an hour, with spikes of 46W but of course it cycles on and off).
Maybe a summer time test in the future, to see how much is lost on a very hot 90+ degree day, just a thought, love the video's thank you so much for all the info.👍
Yeah, I am working on a better data collection system that will allow us to plot out performance compared to temp and irradiance. Might take a bit of time but I will also use this setup for endurance testing over longer periods of time.
Purely on power generated Eco-Worthy always seem a bit lower than other brands. I have a 195W bifacial and the Max i got in Summer was 150Watts. A trade off to this is price, which also seems lower for Eco-Worthy panels. So overall Eco-Worthy are not a bad option. You get what you pay for.
I just got 12 Eco-worthy solar panels for $200 from the FB marketplace, and they were still new in the box. They have been charging my EcoFlow Delta Pro amazingly!
@@justinsane7128 nope, the owner bought them on sale a few years ago for a project but never did it so they've been sitting in the garage. They had proof of purchase.
@@justinsane7128 Hard to say, I just found out about one fellow where I live where he occasionally sells new panels on marketplace for Cheap. I found out what he does is he has a business installing them in remote locations. So he buys them by the shipping container. When he only had a few left he sells them cheap, so they can take the shipping container away and drop off the new full one. I believe the savings isn't quite as good as it sounds. If you buy panels from a company like Renogy, they provide great after sale customer service ( at least they do with me ) With his pricing I wouldn't expect . At least during his busy season.
I have both RENOGY for 2000 Watts worth and ECO WORTHY 100 WATT for 800 Watts worth and then graduated up to 200 Watt BiFacial Eco Worthy Panels for My Carport the biggest Producer here on The Ranch and very Satisfied with all 3 choices so far.
Great video. Will Prowse's favorite small panel is Grape Solar 100w. They are $50 usually. And I have one HQST panel I like. Just an idea for additional panels to test.
Just what I was looking for. I went with 5/100 watt EW panels and paid just under $50 per panel. Its off grid with an MPPT controller and fit nice on 10ft unistrut.
Awesome, thank you for adding those other data points, really shaping up to be a very useful comparison resource. With the new power/area and power/cost, when you've run out of 100w panels to test, these measures will be comparable across differently rated panels too. So we could see if it's better to put use 4 x 100w or 2 x 200w once and for all. Thanks again.
Thank you for making these videos, great idea. Will you please add into your metrics the type of cells that the panels use such as monocrystalline VS polycrystalline etc.? Thank you.
Glad I went with Renogy for my camper solar. I’m probably missing something but the cost per watt hour doesn’t matter to me. The more you use the panel the cheaper the cost per watt hour. For example, a person might produce 100 Wh a day but over the course of a month 1000. Since the panel is paid for the more it’s used the cheaper it gets per Wh. This is a good series of videos too.
Hey ES, lv the content. I’m running 1 HF 100W on a camper shell to lithium batteries with inverter. It’s good for camping. I would like it for you to do a VID on how the .gov has limited panels to only small percent of what they could be. Saw TT on it and they limit out put when it could be as much as 85 to over 90 percent from a panel. Tell us is this true and discuss the facts with your subs. Thanks!
I'm curious about Traver Force 100 watt 10BB panels, I bought 4 for my camper, I haven't tried them yet , I'd like to see how they compare to the others you've tested.
If you test multiple panels from same manufacturer because panel performance between units may vary (how good are the quality control during manufacturing). Some panels made by same manufacturers may very dramatically between manufacture batches.
I have an anchor Solis F 3800 in my 30 x 40 Shop. What is the best panel and array to have that shot go off grid? I have a mini split eight LED lights and a television.
This is so nice to see. I originally purchased two Renogy 100w panels for my RV, simply because of low price and light weight/size to easily carry up the RV ladder by myself. Eventually went to six, now have ten of them on the roof. They are working great, and its really nice to know they rate so well. Thank you!
What is the price difference on the panels? That should be included in your evaluation. If I have to pay twice as much to get 17% more energy it wouldn't be worth it to me. Thank you for the video.
Good call. And on the other hand, if I have less roof area (or land, or mounting hardware) I might go for the most efficient/productive panel even if it's more expensive! Just depends on which thing you're short on :) but ES is giving us the data we need to make our own choices (assuming we don't trust the manufacturer data.)
I'm homeless and rely almost entirely on solar for power. I bought 4 eco-worthy panels for $60/each, but I could only mount 3 on my cars roof rack. About a week after I installed them we had very severe storms, with a local tornado touchdown at the edge of the city, with decent hail. Panels survived with no damage. It sounded like hell though. I was a bit worried. I use the panels to charge a 280ah eco-worthy lifepo4 battery and that charges an Anker c1000 power station that I draw power off of. I have a 12v refrigerator, microwave, 24" tv, gaming PC, an Xbox series s, and some fans. I do have a generator that I occasionally use when necessary, mostly for my one day off every week and for prolonged stormy days like right now. I got a whopping 40 watts of power yesterday and not much more today, with 1 or 2 more stormy days ahead. The price of the eco-worthy panels cannot be beat and I always recommend them. I have pulled over 1.7kw in a single day (measured by my victron charge controller), just laying flat on the roof of my car. I average about 1kw, but that's typically on days when I haven't used much power.
Would a more useful data be from leaving the panels out for a number of days (7) and getting the total power generated? That is how solar panels are used.
But weather variability will mean that it's no longer correct to compare panels in 1 week-long test with panels in another week-long test. Some panels will end up tested by a week of rain and clouds while others get mostly sun. I mean, we're talking about testing in the Great Lakes Basin here. :)
I have several different brands of panels including Renogy, Eco, and others. their electric production varies only a little... so price is the biggest factor to me. China is flooding the market putting downward pressure on prices. 100w panels cost ~$10 to make in china. & recently I've seen sub $50 prices on 100w panels. that and the collapse of lithium battery prices make a small home backup system doable for $500... btw cheap PWM Controlers give good bang for the buck. use the price difference between MPPT & PWM to buy more panels
Am I the only person who buys a panel based on its size, rather than it's brand or output? As an example I have a 28" x 36" location for a panel right beside my companionway hatch. I would love to put a 100W Renogy panel there, however it's just too long to fit. Whereas a Coleman 100W panel is almost a perfect fit. So guess which one i will be installing there soon. Oh, last week the Renogy 100w panel was actually cheaper than the Coleman I looked at.
I'm curious, maybe I missed it, but how do you account for the differences in the test environments? Assuming, of course, that the ultimate goal is to come up with a winner.
I haven't figured out how I will normalize the results. So for now I am testing as many panels as possible with similar clear skys (now taking irradiance readings and panels temps) when the temps are 60F-70F. I will be taking all the panels previously tested and setting those up on Ground Mounts for more longterm testing but that will also give us additional side-by-side testing capability at the same time. I have some work to do on the permanent setup and need to mature the data acquisition setup.
Amazing work! would love to see a large price to performence table that incudes all currently tested panels. this seems liek a lot of work but after its done every year you can revisit the list and update the prices and things. generates more content for you but also keep all your previous work to stay recent in a yearly mega update to the panel. similar to what gamers nexus does they also got back and retest the GOAT pc parts and compare them years later against the current winners
The spreadsheet shows them side by side. The day were pretty comparible in terms of temp and conditions but I would like to bring them all together on the same day to validate the results in the spreadsheet.
@@cprpremiumhandymanservices3735 So you have them in parallel, which keeps the voltage the same but adds up the amps - four panels in parallel will push more amps than the Delta Pro can take. Look at the solar input specs for the Delta and it probably says something like 150v, 15a max. If you wire the panels all in series (all neg to pos) that'll keep you below the limits with 91v and 5.5 amps max. Shading probably isn't an issue but to help with that you could wire a set of two panels in series, wire the next two as another set in series, then wire both sets in parallel. That'd give you 45v and 11 amps max, still below both specs for the Delta.
@@cprpremiumhandymanservices3735 Have you tested the panels with a volt meter? My guess is they are producing 17+ volts which is too much for your batteries to handle at once. Do you have a solar panel controller? If I hook my panels up directly to the batteries they won't take a charge. Which is probably a good thing, since some batteries will just boil over. ( I found out the hard way ) Once I hook up a solar controller they always start charging.
Had a HQST panel that fell forward on it's face and hit a rock. The single rock smashed the entire surface. The panel still works, but suspect there will be intrusion and a shorter life.
I have panels from several major companies. I found that they quickly degrade within 5 years of instalation. So far, NewPowa is the worst. Junction boxes come loose, crazing beneath the glass, bubbles beneath the backing, and the frames come loose from the sides of the panels. Most of the rest suffer from similar fast degredation, including a large decrease in the amps produced. So, the key test is time.
I was wondering about this. Durability should be a major factor in deciding what to get. Who the hell wants to replace their whole set-up every 5 years?
I picked up my ECO-WORTHY panels about a year ago, $53 each off of Amazon, and they were about the same on eBay at the time. I still haven't had time to bring them live, but I have started mounting them. I picked up one of their ground mount racks, but the rack is really designed for the 185W panels, so I had to find some alternative mounting hardware, as the racks come with mounting for four panels, but the 100W can actually fit six panels.
looking at cost /max power, shouldn't that include cost over time and not just a moment in time? After 3 months producing power in the summer wouldn't that cost become more meaningless?
Not really no. If I can buy 2 different 100w panels, one is $200 and one is $100, but both consistently produce the same amount of power, with all other things equal, that makes the cheaper one better value for money, and the more attractive prospect. I'm simplifying of course, but that's why this measure is useful. The only problem with all of these comparisons, which can't really be avoided at the minute, without lots more testing equipment, is that no 2 days are the same in terms of conditions. So you can only really directly compare the 2 from each episode with 100% accuracy. But maybe further down the line he'll find a way to test many brands at the same time. For now though, giving us the test conditions in terms of panel temperature and irradiance, is a good compromise, and really the best option he has available. It allows some level of comparison right across the board, just make sure you pay attention to those irradiance and temperature figures too.
You are thinking (perhaps) of cost / energy. Cost / power is a better measure because power includes a time unit already (i.e. a watt [power] is defined as a joule [energy] per second.
Calculate Solar Cost For Your Home - geni.us/solar_reviews
DIY Home Solar ( as low as $1.26/Watt) - geni.us/project_solar
Supplies
Renogy 100W Panel - geni.us/uSVA100
ECO-WORTHY 100W Panel - geni.us/2Fk0zAK
EcoFlow Delta 2 - geni.us/u46bT
EcoFlow Delta 3 Plus - geni.us/avZYM
Power Analyzer - geni.us/s86J
Spreadsheet Results - Spreadsheet Results - geni.us/lAvqOx
DISCLAIMER: This video and description contain affiliate links, which means that if you click on one of the product links, I’ll receive a small commission.
I bought an Ecoworthy 2 panel kit a couple of years back to use with my shed. I used them on and off with a 12V battery set up (manually leaning up against the shed wall). This spring I got a roof top tent installed on my 4Runner, secured a EcoFlow 2kW power station inside, and installed the 2 Ecoworthy panels on top of the tent. I have been very pleased with their performance, easily charging up my power station just from sitting in the driveway. The most power I got from these 2x100W panels is 186W! I have a 45L SetPower 12V fridge/freezer that is always running off the power station, and it’s almost enough to run it indefinitely. I think if I had 1 more panel it would be perfect, but the concern is the 22V VOC since the EcoFlow port can only manage 50V. The size and the weight of the Ecoworthy panels are perfect, since my tent can only 50 lbs of mobile weight. All in all, for a $160 purchase 2 yrs ago, they have been great, still providing 30-40W on very overcast days (fridge uses an average of 32W an hour, with spikes of 46W but of course it cycles on and off).
Love how you take the audience's suggestions into effect. Keep it up!
hitting those panels with two ice balls and showing zero damage is a pretty telling test.
good test! 👍
I have both and have done same test with a pair each in series since I am running 24v system. Renogy consistently produces 10% more power.
Thanks for the confirmation 👍
Maybe a summer time test in the future, to see how much is lost on a very hot 90+ degree day, just a thought,
love the video's thank you so much for all the info.👍
Yeah, I am working on a better data collection system that will allow us to plot out performance compared to temp and irradiance. Might take a bit of time but I will also use this setup for endurance testing over longer periods of time.
Purely on power generated Eco-Worthy always seem a bit lower than other brands. I have a 195W bifacial and the Max i got in Summer was 150Watts. A trade off to this is price, which also seems lower for Eco-Worthy panels. So overall Eco-Worthy are not a bad option. You get what you pay for.
I just got 12 Eco-worthy solar panels for $200 from the FB marketplace, and they were still new in the box. They have been charging my EcoFlow Delta Pro amazingly!
Holy crap, that is awesome. Nice find 🙌
Probably stolen
@@justinsane7128 nope, the owner bought them on sale a few years ago for a project but never did it so they've been sitting in the garage. They had proof of purchase.
@@justinsane7128
Hard to say,
I just found out about one fellow where I live where he occasionally sells new panels on marketplace for Cheap.
I found out what he does is he has a business installing them in remote locations. So he buys them by the shipping container.
When he only had a few left he sells them cheap, so they can take the shipping container away and drop off the new full one.
I believe the savings isn't quite as good as it sounds.
If you buy panels from a company like Renogy, they provide great after sale customer service ( at least they do with me )
With his pricing I wouldn't expect . At least during his busy season.
Judging by marketplace it's amazing how many people by things and then change their minds without even taking them out of the box, simply amazing!
I have both RENOGY for 2000 Watts worth and ECO WORTHY 100 WATT for 800 Watts worth and then graduated up to 200 Watt BiFacial Eco Worthy Panels for My Carport the biggest Producer here on The Ranch and very Satisfied with all 3 choices so far.
Thanks so much for the feedback!
Great video. Will Prowse's favorite small panel is Grape Solar 100w. They are $50 usually. And I have one HQST panel I like. Just an idea for additional panels to test.
Just what I was looking for. I went with 5/100 watt EW panels and paid just under $50 per panel. Its off grid with an MPPT controller and fit nice on 10ft unistrut.
Awesome, thank you for adding those other data points, really shaping up to be a very useful comparison resource.
With the new power/area and power/cost, when you've run out of 100w panels to test, these measures will be comparable across differently rated panels too. So we could see if it's better to put use 4 x 100w or 2 x 200w once and for all.
Thanks again.
I said this in your other video but could you do newpowa panels please?
Thanks for all you do.
I would love to see you do this with the Yuma 100w cigs panel.
I have plans to similarly dive deep in flexible panels. More to come and thanks for the feedback!
Excellent series of tests, great information I plan to use in my upcoming project!
Thanks so much!
Good Evening ! Thank You for the test. I just ordered some more of the Renogy, after watching this. TAKE CARE..
Awesome, best of luck with the system. I was very impressed with the Renogy 100W 👍👍
@@everydaysolar I just got the last ones last week & then saw your Vid & ordered more. Thank You. TAKE CARE..
Thank you for making these videos, great idea.
Will you please add into your metrics the type of cells that the panels use such as monocrystalline VS polycrystalline etc.? Thank you.
Thanks Scott - great video with a lot of useful information.
Glad I went with Renogy for my camper solar. I’m probably missing something but the cost per watt hour doesn’t matter to me. The more you use the panel the cheaper the cost per watt hour. For example, a person might produce 100 Wh a day but over the course of a month 1000. Since the panel is paid for the more it’s used the cheaper it gets per Wh. This is a good series of videos too.
Excellent information and great video. Thanks for the research information. I'll be watching for continuing results.
Thanks for the support and more on the way.
Excellent testing process, loving this series. I'm a data nerd.
Great video and worksheet altho I prefer the whiteboard in the 1st post better.
Thanks for the feedback!
Hey ES, lv the content. I’m running 1 HF 100W on a camper shell to lithium batteries with inverter. It’s good for camping. I would like it for you to do a VID on how the .gov has limited panels to only small percent of what they could be. Saw TT on it and they limit out put when it could be as much as 85 to over 90 percent from a panel. Tell us is this true and discuss the facts with your subs. Thanks!
Would it be possible to do a comparison for the EcoFlow 100watt panels? 😊
Sure is, those panels just arrived yesterday. I will release the test comparison in a week or 2.
This is getting useful. Thank You.
In 2009 I paid around $650 for a 80W panel. The price drop over time has been spectacular.
Yeah, year-over-year price reductions have been impressive.
I'm curious about Traver Force 100 watt 10BB panels, I bought 4 for my camper, I haven't tried them yet , I'd like to see how they compare to the others you've tested.
If you test multiple panels from same manufacturer because panel performance between units may vary (how good are the quality control during manufacturing). Some panels made by same manufacturers may very dramatically between manufacture batches.
great job, i cant wait for more vids
We will keep them coming!
I purchased 4 100 watt eco worthy for $200 and average 250 to 300 watt laying flat on my porch roof to charge my bluetti ac180
Hard to beat that price!
@everydaysolar yes, Amazon has that all the time , 4 100 watt panels, need to purchase mounting hardware separately
I have an anchor Solis F 3800 in my 30 x 40 Shop. What is the best panel and array to have that shot go off grid? I have a mini split eight LED lights and a television.
This is so nice to see. I originally purchased two Renogy 100w panels for my RV, simply because of low price and light weight/size to easily carry up the RV ladder by myself. Eventually went to six, now have ten of them on the roof. They are working great, and its really nice to know they rate so well. Thank you!
I was really impressed, looks like you chose well 👍
What is the price difference on the panels? That should be included in your evaluation. If I have to pay twice as much to get 17% more energy it wouldn't be worth it to me. Thank you for the video.
At the end I roll everything up and there is even a link where you can download the spreadsheet in the description.
I purchased 4 Eco-Worthy for $198. For the difference in price I can buy 2 more Eco-Worthy panels.
Good call. And on the other hand, if I have less roof area (or land, or mounting hardware) I might go for the most efficient/productive panel even if it's more expensive! Just depends on which thing you're short on :) but ES is giving us the data we need to make our own choices (assuming we don't trust the manufacturer data.)
Please include HQST panels. I have to that seem to work great.
Will do, they are already on order and will be added to the list of tested panels in the next 1-2 weeks. Thanks for the feedback!
I'm homeless and rely almost entirely on solar for power. I bought 4 eco-worthy panels for $60/each, but I could only mount 3 on my cars roof rack. About a week after I installed them we had very severe storms, with a local tornado touchdown at the edge of the city, with decent hail. Panels survived with no damage. It sounded like hell though. I was a bit worried.
I use the panels to charge a 280ah eco-worthy lifepo4 battery and that charges an Anker c1000 power station that I draw power off of. I have a 12v refrigerator, microwave, 24" tv, gaming PC, an Xbox series s, and some fans.
I do have a generator that I occasionally use when necessary, mostly for my one day off every week and for prolonged stormy days like right now. I got a whopping 40 watts of power yesterday and not much more today, with 1 or 2 more stormy days ahead.
The price of the eco-worthy panels cannot be beat and I always recommend them. I have pulled over 1.7kw in a single day (measured by my victron charge controller), just laying flat on the roof of my car. I average about 1kw, but that's typically on days when I haven't used much power.
I just bought another 4 pack of the Eco-Worthy panels. Guess I chose well.
Yes you did. Bang for the buck, hard to beat.
Any chance that solar panels from the same manufacture can vary from one to another?
Would a more useful data be from leaving the panels out for a number of days (7) and getting the total power generated? That is how solar panels are used.
But weather variability will mean that it's no longer correct to compare panels in 1 week-long test with panels in another week-long test. Some panels will end up tested by a week of rain and clouds while others get mostly sun. I mean, we're talking about testing in the Great Lakes Basin here. :)
@@TaiViinikka Not if you left the panels side by side, same as shown in the video
I have plans for much longer term testing on each of these panels. It will take a bit of time to setup but more to come 👍
Great video very informative
I have several different brands of panels including Renogy, Eco, and others. their electric production varies only a little... so price is the biggest factor to me.
China is flooding the market putting downward pressure on prices. 100w panels cost ~$10 to make in china. & recently I've seen sub $50 prices on 100w panels.
that and the collapse of lithium battery prices make a small home backup system doable for $500... btw cheap PWM Controlers give good bang for the buck. use the price difference between MPPT & PWM to buy more panels
Am I the only person who buys a panel based on its size, rather than it's brand or output?
As an example I have a 28" x 36" location for a panel right beside my companionway hatch.
I would love to put a 100W Renogy panel there, however it's just too long to fit.
Whereas a Coleman 100W panel is almost a perfect fit.
So guess which one i will be installing there soon.
Oh, last week the Renogy 100w panel was actually cheaper than the Coleman I looked at.
great video!
Thanks!
I have had more crimped wire come disconnected. So crimped and soldier is best.
Thanks for the feedback!
@@everydaysolar Why would some say crimp is better than solder?
I'm curious, maybe I missed it, but how do you account for the differences in the test environments? Assuming, of course, that the ultimate goal is to come up with a winner.
I haven't figured out how I will normalize the results. So for now I am testing as many panels as possible with similar clear skys (now taking irradiance readings and panels temps) when the temps are 60F-70F. I will be taking all the panels previously tested and setting those up on Ground Mounts for more longterm testing but that will also give us additional side-by-side testing capability at the same time. I have some work to do on the permanent setup and need to mature the data acquisition setup.
OK, curious how the Harbor Freight compares.
At the end I bring it all together into a spreadsheet. There is also a link to download the spreadsheet if you want to dive deeper.
I have Eco-Worthys 100 watt, 100 watt bifacial, and 120 watt panels. For the price, they are hard to beat on small wattage panels.
The eco-worthy panels are cheaper on ebay, just FYI folks
Thanks for the heads up!
GREAT video!
Thanks 🎉
You bet!
The Eco-worthy panel is $46 on Ebay, best bang for your buck
Can you test ecoworthy 100w flexible?
That one should be coming up soon as I actually already have the panels.
Amazing work! would love to see a large price to performence table that incudes all currently tested panels. this seems liek a lot of work but after its done every year you can revisit the list and update the prices and things. generates more content for you but also keep all your previous work to stay recent in a yearly mega update to the panel. similar to what gamers nexus does they also got back and retest the GOAT pc parts and compare them years later against the current winners
I have 6 200 watt 24 volt panels, if i were to get 6 200 watt 12 volt panels what I be losing or gaining in output?
Watts are watts, if you are running lower volts, you will have more current.
Can see any numbers...
Post on screen while taking.
Thanks for the feedback 👍
are you going to throw the Harborfreight panels against these ?
The spreadsheet shows them side by side. The day were pretty comparible in terms of temp and conditions but I would like to bring them all together on the same day to validate the results in the spreadsheet.
Nice
I purchased 4 100 watt eco worthy and will Not charge my Delta pro is it the fuse size I used it to 30w and no go.. ridiculous waste of money
How do you have them wired together? All in series?
@@everydaysolar positive to positive..neg to negative
@@cprpremiumhandymanservices3735 So you have them in parallel, which keeps the voltage the same but adds up the amps - four panels in parallel will push more amps than the Delta Pro can take.
Look at the solar input specs for the Delta and it probably says something like 150v, 15a max. If you wire the panels all in series (all neg to pos) that'll keep you below the limits with 91v and 5.5 amps max.
Shading probably isn't an issue but to help with that you could wire a set of two panels in series, wire the next two as another set in series, then wire both sets in parallel. That'd give you 45v and 11 amps max, still below both specs for the Delta.
@@Mazlem thank you I'll give it a try
@@cprpremiumhandymanservices3735
Have you tested the panels with a volt meter? My guess is they are producing 17+ volts which is too much for your batteries to handle at once.
Do you have a solar panel controller?
If I hook my panels up directly to the batteries they won't take a charge.
Which is probably a good thing, since some batteries will just boil over. ( I found out the hard way )
Once I hook up a solar controller they always start charging.
Excellent Tests and Chart.....
Thanks so much!
Had a HQST panel that fell forward on it's face and hit a rock. The single rock smashed the entire surface. The panel still works, but suspect there will be intrusion and a shorter life.
I have panels from several major companies. I found that they quickly degrade within 5 years of instalation. So far, NewPowa is the worst. Junction boxes come loose, crazing beneath the glass, bubbles beneath the backing, and the frames come loose from the sides of the panels. Most of the rest suffer from similar fast degredation, including a large decrease in the amps produced. So, the key test is time.
I was wondering about this. Durability should be a major factor in deciding what to get. Who the hell wants to replace their whole set-up every 5 years?
I picked up my ECO-WORTHY panels about a year ago, $53 each off of Amazon, and they were about the same on eBay at the time. I still haven't had time to bring them live, but I have started mounting them. I picked up one of their ground mount racks, but the rack is really designed for the 185W panels, so I had to find some alternative mounting hardware, as the racks come with mounting for four panels, but the 100W can actually fit six panels.
twice the price for 10% more.... i went w/ eco worthy....
Yeah the ECO-WORTHY price is very compelling.
Don't trust your arm to throw an iceball? Relive your baseball youth? ha Ha ha.
Didn't have time to loosen up to relive my youth 🙂
I'm surprised you got 85w for the ecoworthy... max i could get was 65w. See my vid.
I really don't like that the "solar cost for your home" just is a marketing tool...
Real 100w panel -36 elements 18v.. This panels is sh......imho
ECO-WORTHY panels are junk and never produce what they are rated.
Thanks for the feedback!
looking at cost /max power, shouldn't that include cost over time and not just a moment in time? After 3 months producing power in the summer wouldn't that cost become more meaningless?
no. time is the same for all so it does not affect the comparison.
Not really no. If I can buy 2 different 100w panels, one is $200 and one is $100, but both consistently produce the same amount of power, with all other things equal, that makes the cheaper one better value for money, and the more attractive prospect. I'm simplifying of course, but that's why this measure is useful.
The only problem with all of these comparisons, which can't really be avoided at the minute, without lots more testing equipment, is that no 2 days are the same in terms of conditions. So you can only really directly compare the 2 from each episode with 100% accuracy. But maybe further down the line he'll find a way to test many brands at the same time. For now though, giving us the test conditions in terms of panel temperature and irradiance, is a good compromise, and really the best option he has available. It allows some level of comparison right across the board, just make sure you pay attention to those irradiance and temperature figures too.
You are thinking (perhaps) of cost / energy. Cost / power is a better measure because power includes a time unit already (i.e. a watt [power] is defined as a joule [energy] per second.