How Much Energy Does a 100 Watt Solar Panel Produce?

I tested a 100 watt solar panel over the course of a week (well...10 days, actually) to find out how much energy 100W solar panels can produce.
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MY SETUP
I used a 100W 12V Renogy Monocrystalline Solar Panel and a Victron MPPT Charge Controller. I monitored the battery’s state of charge with a Victron BMV-712 Battery Monitor to ensure the battery never reached full charge. When it got close to full, I’d turn on some loads to discharge it. I’m happy to say the charge controller was in the Bulk charge stage for 100% of the test! I ‘mounted’ the solar panel at the optimal tilt and azimuth angles for my location (Georgia) and time of year (April). Temperatures ranged from the 40s to the 80s. I cleaned the panel twice during the test, and trimmed the grass in front of the panel to prevent shading.
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DISCLAIMERS
Some of the links in this video description and in the comments below are affiliate links. If you make a purchase after clicking on one, at no extra cost to you I may earn a commission. As an Amazon Associate I earn from qualifying purchases.
For general informational purposes only. Nothing in this video is intended to be professional solar or electrical advice. Please consult with a licensed professional in their field of expertise in your jurisdiction.

[@bobhilder1469]

I'm in southern Arizona and have 12 255 watt (at STC) SolarWorld single crystal silicon solar panels all in series pointed due south at a 18.5 degree tilt from horizontal. It pretty much has full exposure to the sun from sunrise to sunset year round. The string of 12 is connected to a SMA Americas Sunny Boy 4000s MPPT/Inverter (grid tie). The system was put into use in early October of 2012 and has, on average, delivered over 16 kw-hours of energy per day.

[@cocoavideos]

Interesting. The "rule of thumb" I've heard is on sunny days you will get about 5 times the solar panel wattage per day, and your results just about match that (12 x 255 = 3060 watts, 16000 / 3060 ~= 5.23 kw-hours).

[@bobhilder1469]

@@cocoavideos Yup. I sized my system based on the average energy I use per day (about 16 kw-hours) and the "peak sun-hours per day" of sunshine I'd get (5.5 hours). Divide the 16 kw-hours by the 5.5 hours and it dictated I'd need 2.9 kw worth of solar.

[@kaasmeester5903]

@@cocoavideos Our roof is small and we have a few panels on the sloped roof in front, and on a flat roof out back. Some panels perform better in the morning, others later in the day. Total of 12x 400Wp panels, each with its own micro-inverter. On sunny days such as the last few weeks, the system will peak at around 14:00 at 4200-4500W output. Daily output on sunny days averages 30kWh. Slightly more than that rule of thumb. No idea yet how well they perform in winter, but these panels are supposed to perform well in low light, and perhaps that's why we get a few kWh more, some extra being eked out around dawn and dusk.

[@cocoavideos]

@@kaasmeester5903 Interesting information. We don't have solar yet but are considering it (electrical rates in the city of Santa Clara are pretty good, around 0.12-0.15 per kWh). About how much did you spend to set this up or did you do the work yourself?

[@kaasmeester5903]

@@cocoavideos I had them installed… it’s not that hard to do yourself actually, but I’m lazy and this way the system is under a full guarantee. I did do the wiring from the fuse box to the roof myself. Paid around €6,500 all in. At €.35 per kWh, it should pay for itself in 5 years.

[@ianferguson3543]

Our 180w panel on our camper van roof produced way more power than needed most days. We wanted our freezer compartment to be frozen, all our devices charged and our electric bike batteries topped up when needed. Over 30 days we only had one cloudy day when I felt the need to use a pre-charged battery pack. The van has 2 leisure batteries.

[@marlinmartinez-schauer9325]

May I ask what setup you use? Currently researching to set my van up with solar

[@ianferguson3543]

@@marlinmartinez-schauer9325 we have two leisure batteries (Agm not lithium) and a victron controller that’s Bluetooth. It’s a rigid panel on the roof

[@marlinmartinez-schauer9325]

@@ianferguson3543 Thank you!

[@poletooke4691]

Interesting... My cooler takes up a good amount of power, so I have 2 100 watt panels to just ensure that has what it needs, and one more 100 watt panel to satisfy the needs of everything else (phones, recharging things like lanterns, electric lighters, vape, cochlear implant batteries, Kindle, Anker 20k mah power banks, etc, as well as running a couple of small items like a 2 watt 6 inch fan, a mini Bluetooth speaker, and whatever else I haven't remembered to list.) Which freezer do you have that it's that effecient to run?

[@nancyosborne-webb646]

This panel can put out close to 100 watts kzbin.infoUgkxOqI2yqX0XVrhR2BMJciTWrHJpG8FhJyg when positioned in the appropriate southernly direction, tilted to the optimal angle for your latitude/date, and connected to a higher capacity device than a 500. The built in kickstand angle is a fixed at 50 degrees. Up to 20% more power can be output by selecting the actual date and latitude optimal angle.The 500 will only input 3.5A maximum at 18 volts for 63 watts. Some of the excess power from the panel can be fed into a USB battery bank, charged directly from the panel while also charging a 500. This will allow you to harvest as much as 63 + 15 = 78 watts.If this panel is used to charge a larger device, such as the power station, then its full output potential can be realized.

[@cherylmurray7942]

Great putting it in understandable language. And thanks for not asking for like before the information was given.

[@parrotheadinchief]

Well done. Straight forward and to the point.

[@marclagalle1486]

Many many moons ago (20 or so years ago) when I worked at a solar shop in Sydney Australia, we mounted 3 x different panels to the top of a mobile frame. One was a monocrystaline panel 80w (BP solar?), the closest we sold in a polycrystaline was a Sanyo? or was it Sharp 75w panel, and a 64w Unisolar amorphous panel (I think they were actually rated at 68W). All 3 were linked via a Plasmatronics PL20 controller to a well discharged Trojan 120Ah 12v battery each. Results were interesting - early in the morning and overcast days, the Unisolar amorphous panel out[performed the other 2 despite being rated as the least powerful. One hot sunny days the monocrystaline was the winner - but only just. Over the course of a month in Sydney, the total outputs were pretty similar. It vindicated Unisolar's boasts about extracting more power in low light conditions, and the lack of glass meant they were extremely tough. BUT the old drawback of efficiency meant that they were huge for the output. It you had the space, then in my opinion, they were the bees knees.

[@anthonypalermo967]

I wanted to thank you for the idea of PVC pipe solar panel stand. I did a slight Mod. but your design was great and saved me lots of money. I used it for 2 full size panels and used 1" and 3/4" pvc. Works Great. Thanks (didn't know where else to post thx)

[@footprinthero]

So happy to hear that it worked out well for you! Appreciate you taking the time to leave a comment 😊

[@diySolarPowerFunWithRay]

Very good test. Thanks for posting. Awesome videos. I could have swore that your channel and had like five hundred subscribers a few weeks ago. Crazy progress.!

[@footprinthero]

Thank you, Ray!

[@capnkirk5528]

Really liked the info and the presentation, so I liked, subbed and a comment for the algorithm so I see if you do anything else as good :)

[@Ed-ym4tu]

This was great. I just got my setup going and playing around trying to figure this exact information out. Dec 14th in Virginia is a really bad time to test solar. I was disappointed I was only getting about 14 watts and wasnt sure I had this right. Based on this video, looks like I'm on track. Thanks!

[@pierrec1590]

Ideally, you should orient the panels perpendicular to the sun. That is if you put a square on the surface of the panel, it should not make a shadow. Of course the apparent position of the sun will change, and this is what makes sun trackers attractive. For a rough estimate, tilt your panel at the same angle as your latitude. Georgia is located between 34.9° and 30.6° North, so you should have a tilt somewhere between those two values. If you are in Atlanta, in the spirng, for example, use 33° and orient the panel due south. Your current setup appears to have a tilt of about 25° The tilt can also be adjusted for the season: In summer, subtract 12°, ie 21° and in winter, add 12° for a tilt of 45°.

[@71160000]

Side note. I have a solar can heater that runs into one of my upstairs windows. It's tilted at a 30 degree angle to match the sun during the winter months.It raises the air temp running through it by around forty to fifty degrees without a fan using just convection air movements. Maximum output is around five hours per day during the winter and will produce some heat even on overcast days while it's freezing outside.

[@Paddy_Mac]

Hey Alex, I really enjoyed this video and your video running a fridge on 100ah lithium battery - I predict you are going to gain a lot of followers if you keep producing fun, interesting science type videos.

[@footprinthero]

Wow! Thanks, Paddy!

[@jessicaalvarez273]

Awesome!! Interesting to see such a range

[@footprinthero]

And in just 10 days of testing!

[@user-kt2cp6bh9v]

Bravo! Subscribed. Please more content around this topic! Thanks

[@spitalul2bad]

Great content mate! Keep going! Already subscribed

[@footprinthero]

Thank you! 😊

[@Electronzap]

Great test. Definitely want to make the best use of the energy when there is a lot of sun, and have backup plans for when there isn't.

[@Mike-iq8uv]

Thanks, great info. Love to see a comparison between a pwm controller and a mppt controller in low watt application.

[@danielrodding8522]

MPPT does a better job. I've tried both here with a small 80 Wp panel, and with MPPT I effectively get about 15 % more charging power than with a PWM module. Simply said: PWM fails on cloudy/rainy days. With MPPT regulation, you almost always get at least a little bit of power from your panel.

[@kaungko4677]

Thank you so much mate. As I was palnning to buy 100 w solar panel ,this video is exactly what I was searching for. Thanks you for your effort

[@footprinthero]

You're welcome!

[@mariabaptista-pt]

Why a 100w only... You need higher for better output...

[@kaungko4677]

@@mariabaptista-pt I'm just thinking of a budget mini setup to charge my phone , run a dc evaporative cooler .

[@ghost307]

@@mariabaptista-pt Then you need to install larger PV panels or multiples of the 100w units. The theoretical upper limit on PV power output is roughly 1 kilowatt per square meter. This assumes a PV panel mounted on Earth, it grows as you get closer to the sun and diminishes as you further from the sun.

[@nore8141]

I’m looking to install a solar panel system on a future project, since I’m in Quebec I experience a lot of different skies. Your video today was most interesting thanks 🙏

[@af1023]

Awesome video and commentary, thank you

[@footprinthero]

You're welcome!

[@thecatat7]

Thank you for sharing this experiment. I reside in Cape Town and, due to the limited options available, I have installed four sets of 70W panels inside my north-facing balcony windows. Although it may not be the most ideal setup, I made the best of the situation. I also utilized MPPT and Lifepo4 technology. As a result, I have observed a significant reduction of approximately 40% in my electricity bill. This is particularly beneficial in South Africa, where electricity costs are notably high. Moreover, we frequently experience power outages, known as "load shedding," due to the inadequate supply of electricity by the ANC government-owned and managed electricity provider. This situation is primarily attributed to issues such as theft, greed, and corruption. These blackouts can last up to 10 hours per day. In my case, the solar panels have been a lifesaver. They have provided me with a reliable source of electricity during these challenging periods.

[@DrRussell]

This is a reality check for me. Thank you

[@footprinthero]

Wow thanks for sharing. Glad to hear it's worked so well for you. I've heard from some other viewers about load shedding, sounds like solar with backup is a good solution

[@kunalvanmali]

Hahaha, as a fellow saffa your comment (although very accurate) made me laugh 😂

[@fahmiplts]

Nice experiment test, in here Indonesian country. The 100 Wp solar panel can produce 70 - 80 Watt Average, using MPPT solar charge controller.

[@footprinthero]

Ah that's interesting, thanks for sharing!

[@JohnDoe-wj3jf]

You looked blazed @ 0:23 my man!😂 ✌️

[@KennyC72]

Doing some boondock camping with our RV this summer. Thanks for the great video and useful info!

[@mrbooking465]

Great video man 👍🐸🚴‍♂️☕️

[@RAWSET]

Victoria Australia. Four years ago I installed a 3.75 kW = 14 Panels at 250 Watt each. Worked out the math in advance it should pay itself off in 3-5 years. If it did I would upgrade. It did in 4 years or less so that's the sell on me to upgrade. I now have 24 panels diverged facing East, North and west. It works very impressive when its sunny in summer but! I now have live monitoring with this upgrade with battery system. Its shocking to see how much the power drops as soon as a cloud passes over. Then we have had mostly cloud and rain through this last winter the system is making up for losses of sunlight. Its like it produces near nothing under heavy cloud weather its such a shame really. My new 12 panels are 450 watt each. Its auto calculations say I'm 25% self efficient at these weather conditions so that's not that bad really. I'm waiting to see how high that gets through the next year etc,

[@martienstofmeel2192]

Nice video, Good work.

[@KevinBalch-dt8ot]

Your 100 W rated panel produced 4310 W-hrs over 240 hrs so it produced about 18% of its theoretical output (4310/(100*240). For a grid power system, about 80% of the time it would need a backup power source. Or, 5 panels could be deployed to charge a battery. Since levelized battery storage costs are about twice that of panels, to get a 100% reliable equivalent system would cost 15 times the cost of a panel (1 panel plus twice that for battery storage per panel). If a natural gas or nuclear plant were to be making up the difference, it would have to be continuously adjusting it’s power level to match supply and demand which is a very inefficient way to run these plants. None of these costs are factored in to the cost of solar panels when the claim of cheap solar energy is made. I have solar panels on my roof and it’s worked out well. However, I got a lot of tax and financial incentives from the government and local utility, I live in southern California where it is almost always sunny and I got the system basically at cost since my wife works for the solar panel company that supplied the system.

[@oznerol256]

This assumes the grid has the same consumption 24/7. It does not. Energy consumption is high during the daytime, especially on workdays. Conventional power plants can provide power 24/7, but must be built to keep up with peak demands. This results in under-utilization at night. The result are cheaper prices at night. Solar will invert this. Prices will be low around noon, and high at night. The cheapest prices will be noon on a sunny weekend day.

[@con_boy]

Mate no where other than the arctic and antarctic circle has sunlight 24 hours a day..

[@SandeepBassan-ce5xr]

Very nice video and very clear. Thanks for making the video. 😊

[@boblatkey7160]

Also you should see the performance of a solar panel when it is -20° outside and it is perfectly sunny and windy.

[@terrylane1492]

your power output is closely matching your hours of usable sunshine. Great validations of on already known number. It would have been more interesting if you were to compare a couple of different brands of panels, but overall, well done.

[@OverlandOne]

I have 720 watts of solar on my van using 4 matching panels and I average around 450-500 watts input at any given time on a decent day. I was expecting a bit more but they are flat mounted with no tilt mechanism, which I may add in the future.

[@danielrodding8522]

The numbers appear very plausible for spring/summer season. Here in Germany, I operate a small "insula network" independent from regular power grid. Reason is that I want to supply some few very small devices independently from the regular grid. Power source is just a small 80 Wp panel, and I actually need only about 50-65 Wh per day. Nominal battery capacity is 1280 Wh, and in reality I can get something about 1100 Wh out of it. This setup is sufficient to power the small devices connected there for most of the year. Only in a period of approx. 6 weeks in the winter, it's necessary to charge the battery from the grid. Here, typical daily results from the small 80 Wp panel are 40 Wh on real bad days, and 400 Wh on optimal days. The panel, however, isn't optimally adjusted to catch as much sunlight as possible. I'm living in some rented apartment, so the pane is just is attached to an outer wall here below a window, and orientation is to the western side. In summary, that "insula network" does exactly the job for which I've done that setup. The entire setup is up and running for 27 months now and is working reliably.

[@BillyfromConsett]

I’m in the northern UK - near Newcastle upon Tyne - which is mostly cloudy. A sunny day is like hitting the jackpot for my roof solar rig.

[@epluribusunum1907]

A conservative estimate / rule of thumb, is for every 1000 watts of solar panels, you will get 4,000 watt hours per day. So 100 watts of solar panel is about 400 watt hours per day give or take (good quality monocrystalline panels new or used).

[@mikefahmie7506]

I was also surprised to get more than 100 watts from a 100 watt panel. The way this happens, is when you have the combination of direct sunlight and some clouds near the sun. Those clouds are illuminated by sunlight that would ordinarily not reach your solar panel, but once the sun illuminates them, some of that light adds to the direct sunlight that your panel sees. It's kind of like having an extra Sun or two.

[@cz1589]

I also think there can be other deflection of objects, in particular windows or shining and light painted structures in the right angle and size. Ive had the same readings of exceeding the performance stats.

[@zeealpal]

Another major factor is that the panel is often cool when the sun is behind clouds, and hasn't had a change to heat up when the sun comes out from the clouds. Every *C above 25*C often has a 0.3% to 0.5% drop in output, so the panel heating from 30*C to 50*C could drop the output by 10%. Of course, the extra sunlight increases the output so its a balance.

[@StuartKoehl]

The panel can do that because a new panel actually puts out considerably more electricity than its rating, so that, at the end of the warrantee period, it is still putting out its official rating (see my explanation, above). When attached to a household system, the output of the panel is regulated so as not to over stress the inverter or battery bank to which it is attached. Since this was simply attached to a meter, the regulation of the output didn't matter.

[@michaelmurphy6195]

Were you as surprised when you realized a 12V battery is actually 14 volts!

[@vikingraider1961]

It's true - one company that I know had a customer with a South facing roof overlooking the sea - he was getting almost double what he should have been getting.

[@mtscott]

Great video. Cloudy days really kills the watts! 😳 The day to day. Amiability is the real issue. On low days what takes over? And if it’s wind and the wind isn’t blowing 😳 That’s why we need a mix.

[@jamesbrook16]

We have a 100w panel for our Microcamper which I attach to the roof with suction cups which allows me to move it - for example onto the windscreen facing the sun in the morning/evening. When we’re driving it goes inside and we charge the power station with the alternator. The panel can get 80+ watts and everything between 0 and 80 and keeps the power station charged when we’re parked up. We are in the north of the UK and my experience has been in March and April.

[@TheCatMan777]

There's a rule of thumb ratio in the solar industry of Panel Watts to Yearly kWh. Your location determines the ratio. Here in New England it is about 1:1 Meaning the 100 Watt panel would make about 100 kWh over the course of a year. Places like Arizona would be much higher. No just because they have more sunny days, but the sun also strikes the earth with more Watt per meter squared. New England is about 800 w/m2. AZ can be as high as 1,200 to 1,300 in places.

[@HutchinsonJC]

This depends if your panels are fixed mounted, too. If you have ground mount simple setup you can face the panel manually more to the East in the AM and adjust through the day. There are systems that can automate the movement of the panels, too. Fixed mounted panels on a East or West slope of a house's roof will be the worst for efficiency since half the day it'll be facing the wrong way for good sunlight.

[@markelap9410]

nice vlog straight forward unlike other videos 12 mins or more do the same hahaha.. save my time.. thank you new subscriber from Philippines mabuhay! mamatay!

[@DoyleShadduck]

Not too shabby!

[@footprinthero]

It really isn't!

[@henrybardouin6800]

Keep up the good work Alex ...😅

[@batmanlives6456]

So to put this in perspective This 100 w solar panel output was able to produce 4.31 kw for the 10 days… To charge an EV with a 100 kw battery you will need approximately 251 days to recharge Or 10 of these panels will get charging times to just 25 days… Or 100 of these panels 2.5 days on average I hope you Jane a very large back yard to accommodate 100 panels … As you can see solar panels are not great at powering high demand items …

[@orangezeroalpha]

Maybe, from empty. I've never yet charged my EV from empty because that would be silly. I do often add 10-30% of a charge in one day, which makes the equation quite a bit easier. These 100w panels can be 36in x 16in now, so 100 panels wouldn't be that hard to deal with vs older large panels. That said, my refrigerator has been running on solar for 2 years now, and I can use my air fryer, window air conditioner, etc... so it is quite easy to power high demand items.

[@batmanlives6456]

@@orangezeroalphayour maths dont add up

[@jaybrown6174]

When I was installing SCADA systems in solar plants it was not unusual for the output of the plant to go from 100% down to 20% in less than two minutes when a cloud came floating by. Fortunately these were only a 30 MW plants tied to a very stiff power grid. However, I can’t imagine how a control center is going to be able to follow the load if the grid has a lot of solar plants connected to it without sufficient spinning reserve from fossil or nuclear energy plant. Batteries might help but I see black outs in our future!

[@zeealpal]

Honestly, this is why small storage but matching output batteries should be installed alongside solar farms, E.g. a 100MW solar farm should have 100MW/50MWh battery smooth the output.

[@nickwinn7812]

Well now, them there clouds may be shading one solar plant, but the others just a few miles (or km) up the road and down the road, are not experiencing the same shading at the same time. So your observation is in isolation of the real world scenario.

[@jaybrown6174]

I have never spent time at a really large solar plant so maybe cloud coverage doesn’t effect the whole plant but I know it effects 30MW plants pretty severely in Georgia and north Florida. I have been at large Wind Turbine sights in Texas where wind has unexpectedly died out or never appeared and the power markers have had to scramble to find enough on line fossile reserve to make up the deficit. Since they are buying that power at spot prices the cost can be pretty high. Luckily there was enough spinning reserve available to make up the difference regardless of cost.

[@joeculver7489]

Hey no problem, every time there is a cloud cover and solar energy production drops the wind picks up and wind generation power goes up!

[@guyeshel9316]

Thank you dear

[@mikespangler98]

During days of heavy overcast (not even snowing, just overcast) in December up here at 47 degrees North I see about 7% of rated nameplate capacity. Add to that the day is only 8 hours long and output is hurting in the winter.

[@malcolmrose3361]

I'm the same down here in Southern Spain - in Summer I'm feeding 7-12KWh a day into the Grid. In Winter on a sunny day I can barely fill the battery - the days are shorter, the sun is lower in the sky and there are more days when we have some clouds. As for clouds - on the days when you have white clouds and you can almost see the sun trying to get through I get about 20% of rated power, on grey days maybe 10%. Usually in Summer the system hits 85-90% of rated capacity.

[@rupe53]

bottom line is your 4.3 Kw made roughly 65 cents worth of power using 15 cents per Kw for the calculation. If you are paying 25 cents per Kw then just over a $1 total. In a year (weather pending) you might make about $36 worth of power. What's your payback time versus cost? (you didn't mention cost)

[@johnbullpit9481]

How did he measure the wattage? Have a fixed load and record the voltage over time?

[@asmnazmuzzaman1703]

You have made a nice video

[@footprinthero]

🙏🙏

[@alvino9611]

I been playing with a renogy solar system I built with 2 renogy x100 watt panels in series and a renogy 20 amp rover elite mppt controller and been seeing 140-150 watts. Southern Manitoba, Canada.

[@igorpupkinable]

We consume 5kW per day all year round. This means that we need at least 10 panels and storage. Given the cost of the panels, converters, storage and installation it would still not be feasible. It is cheaper to power off the grid in my country. Solar is still too expensive. I’ll come back to this idea in 5 years time again.

[@snafutimes6883]

What appliances are you using daily. Thank you

[@igorpupkinable]

@@snafutimes6883 I cannot tell you really, but I have a 10 years stats for our household which shows us using roughly 150kW per month.

[@rsnppl1603]

What a remarkable Test.

[@errolfoster1101]

I use 40v panels through an MPPT regulator to 12v batteries lets you get more useful power through a greater voltage range because of voltage lowering and raising to gain better use of the panels

[@karlostj4683]

Yes, it was definitely that 1 or 2 blades of grass that were denying the crucial photons from collapsing into the critical section photoelectric array and thereby preventing the panel from reaching 100W.

[@HutchinsonJC]

Without by-pass diodes, it doesn't take much partial shading to ruin the power production of the whole panel. It's almost like kinking a water hose. Even though the kink is only 2inches of the whole 100 foot hose, it ruined the water pressure through the whole hose. Most modern panels will have at least some of these by-pass diodes (kind of like adding a 2nd hose), which can help a lot, but adds a bit to the cost.

[@fern8580]

to capsulize , 1m²(10square feet) solar panel allows you to light up the bulb of your grandmother's old refrigerator (you know, the one where we don't see anything when we open the door!)yes a single bulb between 20 and 60 watts!...and this between 11 in the morning and 4 p.m. in the afternoon.

[@richardgray115]

I had a 2250.w system in Australia. It often produced 2650w

[@BurtBartlow]

Spoiler alert--somewhere in the neighborhood of 0 to 100 watts

[@esmaponda]

This is your first video that I've just watched, I liked it - where is the subscribe button 😊.

[@rakeshkchauhan]

Please check the efficacy of PPTS with it and without and what is the difference in output

[@michaelmendez5600]

This is a great test. Did you connect the more then one charge control to see if it produces more power?

[@footprinthero]

Thanks! Nah, just used the one

[@875josh1987]

Hi what system did you use to keep track of to output?

[@1over137]

3x330W 41VoC panels on my garage. Last 30 days = 100kWh. Highest day was 5.2kWh. Peak output was 1137W. Yes that IS more than the panels total rating. That's also normal.

[@travismoore7849]

Can you take a solar panel and use a dc-dc buck boost converter to up the voltage to 50v from the 15 to 20v to increase wattage?

[@billkraemer4710]

The best panels currently on the market, tilted precisely at the suns are about 23% efficient. That is to say, for every kilowatt of sun energy blasted on the panel, you will get about .23 kilowatts of electricity transfer. Not many people tilt and adjust their panels all day so the out transfer to electricity is much less, we have other stuff to do.

[@davidmorley7778]

I’m curious to know what brand PV and converter are you using I have a 100w Renogy PV panel with a Bioenno Charger controller connected to a 20ah Bioenno LiPo4 battery.

[@richarddrempel8912]

I’ve got 4-320 watt and 3-315 watt panels charging 6-6volt AGM 460 batteries and when I have full sun my batteries are fully charged in 2.5 hours. Winter here with less sun it takes much longer.

[@cafepuya]

Do high heat affects?? Here in the sunny Florida have issues with mine not charging too much.. Sun its perfect but way too hot.

[@CraigMorton-uu2cs]

Any idea why my victron mppt 100/20 only bulk charges a depleted 12v lead battery for a few seconds then goes into absorption ... voltage raises from 10v to 14.4v within about 10 seconds then jumps from bulk to absorption so it then starts slow charging... at a painfully slow rate... on a 70% dis charged 105ah 12v lead battery. Im puzzled

[@shigatsuningen]

4,31 kWh for a heavy duty hour for a regular household would imply you can cook, use a microwave oven, coffee maker, do a short load of laundry and vacuum some stuff. In addition o use a PC with peripherals for approx. 4 hours. Good going, you charged enough for one half day of my regular workload days in little less than 10 days. Considering the cost of setting up a system to sustain my usual workload I guess I would need some 10-20 12V batteries at 75 Ah, 10 charge controllers at 30 A rating, 20 solar panels at 150 W each and a chunk of cable. In my locale at a reasonable priced cost of equipment we're talking 190 USD per panel, 10 USD per charge controller, approx. 50 USD cable and between 900-1800 USD of batteries. The whopper will likely be the inverter required costing some 1 000 USD to reach reasonable levels. (Sum total 5850 - 6750 USD) Cost drops per kWh over time until failure rates increase at aging of equipment but the first 43 kWh's would run me approx. 157 USD per kWh. Anyone have questions about the reasoning? Mind you I am not saying it is a bad technology, just that the step to enter is leaving quite a lot to be desired.

[@Blah-blah-sure]

Ok thanks for the info. But whats your opinion on using this for say: power a basic wifi or t.v. or a single household appliance? And for how many hours?

[@GBBWAR]

what software and solar pannel are you using? i have a theory to increase solar pannel effeciency and i have no idea how to set it up

[@ghost307]

THANK YOU for this video. Now I wonder how long it will take the PV fanatics (they know who they are) to realize that putting up 2 or 3 PV panels won't allow them to charge their EVs in a matter of minutes.

[@nickwinn7812]

Yeah right, you actually think "PV Fanatics" are as dumb as you!

[@Henning_Rech]

I hope you recharge your crude oil sources regularily?

[@elmultimediaschoolofartscu3924]

❤❤ REQUEST: Hi , please 🙏 do a video with night time experience. Using LED lights to power the solar and results over a week. Also include which gadgets can be powered. 🎉🎉🎉 Thanks 🙏🙏🙏

[@JessiJohnson]

I have a question for you, please... I have a Starlink and use a small generator to power it. The problem is, when the generator runs out of gas, the Starlink loses its connection. I find when the Starlink resets, I lose a constant connection and often my calls are affected. I'm trying to find a solution that will allow me to run my Starlink 24 hours a day. Any bright ideas? I'm looking into the Jackery power bank with solar power panels, but I'm not sure what's going to be best here. I don't even mind plugging in my generator into the power bank once a day. I really just need a constant signal while I'm at my vacation for high-quality business calls.

[@cz1589]

Ive a semi-mobile plug&play solar set, 2 sets actually. I hate bureacracy of the landlord corporation so i decided to avoid the paperwork with a set in my garden, not on the roof - that will require hiring a specialist as well, not to mention asking the corporation for permission. Its not a big deal anyway. In the Neterlands, we estimate the yearly production volume to be in the range of 0,8 kwh to 0,9 kwh for optimal placed solar systems, for every placed 1 installed wattage of course. Good to note mine use micro-inverters and connected to the network grid, 220-230 volt. So far, i can come close to this estimated official yearly volume of 0,8+ kwh for every watt installed. But in the coastal area of (old) Zeeland its a bit more sunny then more inland. Of course, 65% of all production is on days with cloudy air or even hardly direct sunlight.

[@mattc825]

Dang, clipping the blades of grass? Just like I do😂😂😂

[@footprinthero]

hahaha yep!

[@jamesm568]

So other words I can run a light bulb in a shed. Gotcha! 👍

[@footprinthero]

Definitely

[@robertwhite386]

I’m looking at using a small solar panel to power grow lights to grow food inside. What size would I need? I’m totally new to this. Any pointers would help. Links to products too

[@stanleybest8833]

I aim panels toward morning sun and toward evening sun. Result: Longer charges instead of strongest charges. The night battery has a shorter no charge time. The battery is the weak link. Also, do not connect lead batteries in parallel. Sooner or later they get into a voltage fight. Don't force everything to run off a pure sine wave inverter. Use 12 volt appliances. Keep your 12 volt chest freezers in ECO mode for longest appliance life. Success in a solar world.

[@basilkasimi2646]

I have 2 180 solar panel each that only produces 80w max power here in Nigeria, what could be the problem? I use 1, 220ah tabular battery and mppt solar charge controller.

[@jimh3362]

For us non-tech guys, how about putting this in real life explanations. How long will that run my refrigerator? Or 10 light bulbs? How much did the panel cost and how much electricity, in dollars, did it save/produce? thanks.

[@DaveSquibbSr]

I get about 2 kw per day on 4 120w ECO-WORTHY panels connected in series here in North Texas

[@snooter28]

In my area that's about $0.04 of electricity a day so a payback of about 7 years. Not bad!

[@iforth64]

What were the Watthours you *expected,* or can backcalculate given the atmospheric conditions (I'm sure there are websites keeping track of that)?

[@KevinBalch-dt8ot]

They produced about 18% of the theoretical maximum output. Improving efficiency would not help since it depends on the available sunlight. If a way were found to stop the earth from rotating …

[@daves3819]

Sure would like to see how well your panel works on Jan1 in Alaska???

[@SuperSarah1954]

It also depends on your latitude. Take it down to the equator and you'll get more power. Take it to say 80 deg north or south you will get less power.

[@biancopoolssal]

I have 4 12 volt batteries in motor home and need to charge them when in storage will 1. 100watt penal work

[@larskronqvist9170]

Nice experiment showing how difficult it is with solar. Dimensions of grid will eat costs.

[@bubbaboudreaux7015]

You're doing a whole lot better than me. I have 10 x 100 watt Renogy panels (1000 watts total), two Renogy Adventurer 30 amp chargers, and a 12V lithium battery. The best that I've seen was 652 watt output. I live in Houston. You know, the place where locals visit hell to cool off. I run a 500 watt window a/c unit with the panels. On partly cloudy days, I get approximately 7 hours of run time. I'll update comment if I get a bluebird day.

[@PeterSedesse]

Yeah, heat lowers efficiency. I think it is like 1% lost for every degree above 80. He benefited by putting his on the grass rather than a roof.

[@bubbaboudreaux7015]

@@PeterSedesse That could explain 20% of the 35% loss.

[@boblatkey7160]

Nothing wrong with that, that sounds about right

[@angelogotrice]

Hi I’m Angelo from Maryland can you do this same experiment with mirrors attached around all the sides to see if wattage production goes up?

[@jrhelios8443]

I got a eco110 portable. Mine varies. I live in a shaded area I get from 0 to 52 w.

[@roadtripwarriors7458]

I have a 100 watt solar panel installed (original equipment) on my 2019 Flagstaff E-Pro travel trailer connected to a Victron 100/30 SCC charging a 400 AH lithium battery. The panel has only been able to produce about 65 watts at peak. I guess I need to upgrade my panel to get the kind of results that you are getting. I have never seen over 70 watts from this panel.

[@footprinthero]

Interesting...in this video I'm using a newer 9 busbar (9BB) panel and I see really good output from those types, typically to 85-90 watts in good sun as shown in the video. Also if the panel is mounted horizontally on your vehicle I'd suggest cleaning it semi-regularly since rain doesn't do as good a job cleaning horizontal panels.

[@roadtripwarriors7458]

@@footprinthero Thanks for the reply! Yes, the panel is mounted horizontally but I will take your suggestion to clean it. I never thought of that!

[@mikimoret]

Dove hai comprato il pannello fotovoltaico quello del video? Di che marca si chiama il pannello fotovoltaico?

[@vplph]

Our national weather man on tv has a site where he publishes since 2008 the exact amount of power produced daily by the solar panels on his personal house roof. That is the best real world data to dimension new installations (including battery size) in the region.

[@Milkybar3320011]

Would you have the hourly data, wondering if solar tracing would make a big enough difference to pay for the motors etc?

[@Henning_Rech]

Never. Billions of panels all around the world are mounted fixed. Think only how massive any tilting mechanism would be needed to withstand a storm. And now imagine you install 50 panels on your home and want to tilt each one...

[@anguscampbell1533]

How much would this panel "out out" if the waste heat was extracted for use? This is an area the PV Panel industry needs to invest R&D time and money into.

[@KapalKaram-ol5uw]

Great content mate! However im wondering about the “module efficiency” stated in the solar panel specs. Mine is 21% efficiency. So what does the 21% efficiency means actually if the solar panel is rated for 100w on optimal condition and capable to produce 100w?

[@Ibian666]

Sunlight contains about 1000w per square meter. The efficiency rating is how much of that energy the panel can capture. That's why a panel of one square meter can produce about 200w.

[@popcornguy96]

Can you store that energy in a battery if you want to use in other days?

[@keg1dog]

Up front I’m not a electronics geek so I won’t be able to give you exact #’s however we had a 22 panel Panasonic cell system installed last November and have enjoyed 0 $ bills since then and actually had a check for 190$ from El Paso Electric. We live in Southern New Mexico and enjoy 245 average sunny days a year. At the highest out put I’ve seen is about 7 Kwh. Right now on the sunniest of days the highest out put will be in the 5-5 Kwh because the sun angle is still high. It has been hot here and we have two AC units that are well tuned and we keep the house at 77 24/7. Do I think the cost of the system was to much? No, and the reasoning is we reduced our carbon footprint . We have battery backup for those odd times when the power is off. I like the part where I don’t pay a bill.

[@Oluwatimilehinfgt]

Was in panels connected to charging a battery during this days