What is Reddit's opinion of
Renogy Solar Panel 100 Watt 12 Volt, High-Efficiency Monocrystalline PV Module Power Charger for RV Marine Rooftop Farm Battery and Other Off-Grid Applications, RNG-100D-SS, Single 100W?
From 3.5 billion Reddit comments
17 reviews of this product found across Reddit:
>BMS
Thanks so much. By the way do you know if I could string the Golabs panel with one of those 100W Renogy panels using the MC4 connectors? The Renogy are 12V but I can't figure out what the Golabs voltage is...
Lol, exactly or an actual generator and not a power station. It’s also very heavy and not very portable. I also find it strange Duracell doesn’t make a solar panel for this item. They actually recommend this on their https://www.amazon.com/Renogy-Monocrystalline-Solar-Compact-Design/dp/B07GF5JY35/ref=sr_1_3?dchild=1&keywords=Renogy+100+Watt+12+Volt&qid=1594233391&sr=8-3 Also Costco had this product for $500, not sure if it’s still available. IMO you need to do some more research cause there are a ton of better options that will charge your kobalt power tool batteries when on job sites.
So, 5 of these guys would fit, but 5 can be an awkward number unless you put them in paralell: https://www.amazon.ca/Renogy-Monocrystalline-Solar-Compact-Design/dp/B07GF5JY35/
I've got one hanging on the side of a barn right now, they're solid units.
Here are the ones I buy now because they are small enough that the regular mail man will bring them to me. I have 6 on my garage roof that runs my mini-split AC for free all summer long.
Not sure if this link directly to the option I have, but it’s this panel, the Compact Option.
I have 600 watts worth of Renogy solar panels.
-and-
I have 800AH worth of lithium Ion Ampere time batteries
Here is an Imgur album of the assembly
Alright lets work up a amazon shopping list because it's the most generic solution and ships to wherever you are. This costs more because you can't assume you source locally.
Solar Panels: Renogy 12 Volt Solar Panel 100 Watt High-Efficiency Monocrystalline Module x6 = 587.94$
LFP batteries: Weize 12V 200Ah LiFePO4 Lithium Battery x2 = 1519.98$
Charge Controller: Victron SmartSolar MPPT 100/50 x1 = 322.00$
Inverter: 2000W 24V Modified Sine Wave Power Inverter DC 24v = 199.96$
Those are the main components. Coming to a total of 2629.88$ by my reckoning.
This system will barely work to run 2.6kwh per day with your batts running down to ~50% SOC overnight. Good news is that I measured in some extensibility so you can add additional capacity later. If the cost is bringing sticker shock then I would suggest a portable gasoline generator as an alternative.
You also additional tertiary gear like breakers and wires. Mounting hardware for the panels. And some other doodads.
You also need to confirm that your medical equipment can handle the modified sine wave of the inverter. If it is more sensitive equipment then you need a pure sine wave inverter which will run twice the cost.
This is a generic solution that I quickly worked up. If this still interests you we can go into more details.
Ha an EE is here!!! Hello friend.
How familiar with semiconductor physics are you? Do you want to be familiar? Get your DMM and O-scope ready.
because there is a whole fun rabbit hole you can go down to answer questions like this in exacting detail. > what part of the power changes?
You can prove some interesting things about photons by how they release electrons in a crystal lattice via the photoelectric effect. Including about how they are quantized! Watching the voltage and current coming out of these panels is how Einstein won his Nobel prize.
You use layers of one way semiconductors to direct those freed electrons in a particular direction in a circuit thus creating an electrical potential (V). With an electromotive force available based upon the quantity of incident photons and the quantum efficiency of the system. Electron-hole pairs are created where some semiconductors like to move holes and others like to move electrons is the basis for PV panels. Solar panels themselves are essentially big diodes where these E-H pairs are created across a one way interface.
Batteries are another whole bit of electrochemistry that is even more complicated IMO. Less accessible to EE's and moreso for chemists.
Others have provided guides on where to start. Set a budget and figure out what to get from there. Here is where I would start. A convenient list of parts delivered straight to your door:
- PV 100watt panel
- Charge controller
- Perhaps a 20AH battery like this
- Deliver power with a 12V socket panel
- In-line fuse with a 20A automotive fuse ATC added
This system will charge cellphones, run fans, DC fridges, lights, laptops, wifi routers, anything ~<250watts. For around 250USD delivered. You can go cheaper too if needed and avoid the amazon monster if you want. It's just the most accessible so I link it.
Good luck and have fun.
| Item | Current | Lowest | Reviews |
|---|---|---|---|
| Renogy 100 Watt 12 Volt Monocrystalline Solar Pan… | - | - | 4.6/5.0 |
^Item&nbsp;Info | Bot&nbsp;Info | Trigger
I just think you've underestimated how difficult it is to use solar to mine bitcoin.
A single Bitmain's Antminer S19 Pro ASIC mining rig consumes 3.25 kW per ASIC. That's 24x7 power; so that's 3.25 kW * 8,760 h = 28,470 kWh per year.
Let's say you bought these 100 W panels from Amazon. Depending on where you live, your capacity factor is probably about 20%. If you could perfectly store all energy from the panels in a battery (I'm assuming here 100% efficiency; it's really about 85%), you'd need 163 of those 100 W panels (163 panels * 20% * 8,760 h * 0.1 kW/panel = 28,557 kWh).
So based on the price of $100 per 100 W panel from Amazon, you'd need to spend at least $16,300 on solar panels alone just to run one ASIC - and that's not even considering the battery and balance of plant.
Build the system out piece-meal. Learn as you go. You'll enjoy it. Harvesting energy from the sun is fun.
Do these links work? Amazon makes me want to puke but it's the most sure fire way I know you can get this stuff to whereever it is you are.
No batteries, hard to ship. You need to go to your local farm and ranch supply store and ask for "deep cycle lead acid batteries". Deep cycle is important, you don't want standard car batteries if you can avoid it. In a pinch they work but will die fast with this type of use.
Every ranch and home supply store I have been to also stocks solar panels, charge controllers, and wires if you want to avoid amazon. The people there may or may be helpful.
Post when you get this stuff and i'll tell you exactly how to build it.
Hi,
I have not bought anything yet so this looks like a good potential option. I drew up a diagram of what I was thinking but don't know how to attach it here as a file (first time posting on Reddit).
This is the concept I am going for minus the alternator charging part:
These are the components I am considering:
Panels: x3 Renogy 100w 12v https://www.amazon.com/dp/B07GF5JY35?tag=skooliesupply-20&linkCode=ogi&th=1
Combiner Box: Eco-worthly 4 string https://www.amazon.com/dp/B07F5HDP2W?tag=skooliesupply-20&linkCode=ogi&th=1&psc=1
Solar Charge Controller: Renogy 40 amp 12v mppt https://www.amazon.com/dp/B01MSYGZGI?tag=skooliesupply-20&linkCode=ogi&th=1&psc=1
Battery: Chins 300ah Lithium https://www.amazon.com/CHINS-LiFePO4-Battery-2000-5000-Off-Grid/dp/B08N53GF81/ref=cm_cr_arp_d_product_top?ie=UTF8
Inverter: 2000w TBD
Shore Power Plug: 30amp
Auto Transfer Switch: 30amp in 30amp out https://www.amazon.com/dp/B00153EYTO?tag=skooliesupply-20&linkCode=ogi&th=1&psc=1
Converter/smart charger: Powermax PM4 60a 110v to 12v DC with smart battery charger https://www.amazon.com/PowerMax-PM4-100A-Converter-Battery/dp/B01ER3LGYY/ref=as_li_ss_tl?th=1&linkCode=ll1&tag=vc-electrical-20&linkId=d8548aa852a41b8ce022d573b5e907c1&language=en_US
​
Would this system all work together? Would that item you recommended be a better fit. I'm also considering getting a renogy inverter/charger/converter combo to do my inverting to AC from DC battery and also my converting from AC shore power to DC to charge battery but those are a bit pricey.
​
Open to all thoughts and recommendations of course.
This is a better stronger more reliable system. I’d recommend adding a second battery or even a 3rd and still be lower cost.
1012LV $366
Renogy 100 Watt 12 Volt Monocrystalline Solar Panel x4 $400
battery $160
I also don’t like that they put “Will approved” on the page. He thought it was cool but “I can absolutely not recommend this unit for daily solar power use”.
12v panels are not cheap but this could work for a temp setup even
Edit: look for something like that on Alibaba,I used Amazon because I was lazy
Popular alternatives to Renogy Solar Panel 100 Watt...
Renogy 100 Watt 12 Volt Solar Panel Starter Kit with 100W Monocrystalline Solar Panel + 30A PWM Charge Controller + Adaptor Kit + Tray Cables + Mounting Z Brackets for RV Boats Trailer Off-Grid System
