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How To save $1000 off your electric bill using DIY Solar
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- čas přidán 16. 08. 2019
- FAQ:
what solar panels did you use? batteryhookup.com/discount/je...
1) Where can learn more about batteries? j35.us/DIYlithiumBatteryBook
2) Where can I buy Lithium Batteries kit.co/jehu/lithium-battery-c...
3) Whats the best Way to assemble Raw cells into battery packs? jag35.com
4) Where Can I buy Solar Panels? Flexible - j35.us/136wFlexSolarPanl
Glass - j35.us/100w-100-solar
DIY - j35.us/DIY-Solar-cells
5) Where can I buy a Battery Management System? kit.co/jehu/battery-managemen...
6) What parts do you use on your DIy electric vw Bus? j35.us/eSambaProj
7) What is the best fuse wire? I only use 1/8w resistor legs j35.us/ResistorLegs
8) Why not use Supercapacitors?
A. Batteries work better at this time, caps are rare and expensive devices that are very good at doing things not needed for storage systems typically.
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I've watched a LOT of homesteading electrical and solar videos, and read a LOT of books. This is the clearest explanation of wtf is going on I have ever seen. Thank you!
I agree 💯
tell your graphics editor mW is milliwatt. MW is megawatt.
it must be someone from the iPhone generation
@@gf6368 -- or the iDon'tknow generation?
@@Nic7320 lmao :-D :-D :-D
Thank god i thought it was just me .... really annoying when you can't get the basics right
You beat me to it. I'm 13 seconds into the video. Also considering a tangential rant on "mcg" (yuck!) over ug for microgram.
You may want to add an exhaust fan to your inverter box with a draw tube that is at the top of the box.
That way you can get more of the hot air out of the box.
Ideally you would have an exhaust on the top maybe think about a U shaped pipe that faces down so rain water will not be a problem.
SCE has changed it's time of use plans effective July 26 2019. New prime times are 4-9pm or 5-8pm. Customers that are currently enrolled in a TOU plan experience no change and are grandfathered in their existing plan. Thanks Jehu for another great video just wanted to share this fyi. I was inspired to go look at the rate schedules at SCE after watching your previous videos and looking at my bill.
6:26 I actually think it's better if you use the fan as an Extractor instead of pusher, this way it creates a negative pressure and is efficient and sucking the hot air out while on the other side the cooler outside air goes in. All computers do this. (Basically Swap fan with the left vent, and flip the fan upside down, done).
true
Yess
Kiss solutions usually work.elevating the panels so there is airgap above the roof helps a lot also
Yep, or one on each side
Actually, negative pressure is less ideal compared to positive pressure as negative pressure = pulling in air from any holes, thus you get dust buildup inside. Same thing with computers, positive pressure > negative pressure. No pressure is the best scenario however.
Its better to extract heat (with the fan) and have a cool air vent when you have one fan. When thats the case, baffling becomes especially important to ensure the integrity of the cool and exhaust air columns... to prevent recirculation of exhaust to intake and/or leakage of intake to exhaust.
another great video, it's something Ive been mulling for a while bit never could get the math to work out. I love the diy approach.
Excellent & simple to follow breakdown of grid tie systems! So glad I found this channel.
Thank god!!! Finally, some one explaining the box in a way I can understand. 👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼❤️
An awesome video! I love to learn, so, i love it when the people that actually make the videos don't assume that everyone knows everything about the said subject of the video and actually go to the trouble of explaining things. It's actually really really good. Jehu, thank you for your awesome content! Keep it up, we love it!
jehu, I must tell you, your simplicity and animation on explaining how the power supply works with the various phases, etc is simply fantastic. Thanks man
Agreed wholeheartedly!
Agreed. As an electrical engineer, I agree his illustrations were pretty good!
Heat needs to vent out the top not bottom, maybe try old dryer vent on side near top of box with a screen
yeah a hole on the side near the top with a cover 90* and from the front to stop water should be fine and could probably even just be passive.
High pressure next to low pressure. You'd think he'd figure out the shortcircut :)
Also the hot air coming out the bottom seems too close to the intake and it may just recirculate the hot air back in. Out the top would be better. A fan to push out would help as well.
You have to remember this guy is someone with no education who thinks hes smarter than he really is. He really has no idea..
but his content is entertaining
The bottom would still work if he sealed everything in there better than with cardboard and a little box tape, but also partitioned the air coming out the bottom to not just swirl back into the intake like it will now.. Or some portion of it anyway.
Thank you Jehu for your continued effort to help and educate us on Solar power and electric vehicles.
Thanks for the video! I just found your channel today and have watched a bunch already. I'm looking forward to trying some of the easier battery packs first then work my way to a solar roof top system! Thanks again and keep up the good work!!!
Loved the illustrations, really beautiful! Thanks as always for the inspiration, been watching for years and just got my first portable system up and running thanks to your vids - been making our videos and running the business with 100% solar power for three weeks now! Thanks Jehu :)
Living the dream
Very interested to see how your batteries get integrated. Great work jehu!
I enjoy this layout of you teaching with the visual drawings. Thank you Jehu i truly appreciate what youre doing on this channel spreading your knowledge. Beginner here hoping to live freely one day
Jehu this video is absolutely awesome! I am a Master Electrician and I cannot think of a time in my life when someone explained and illustrated the grid and solar integration in an easy to understand way. Yes there is a lot of other 3 phase stuff involved but that is for the advanced class and for the most part the average user does not ever need to be concerned or knowledgeable about that.
I cannot for the life of me figure out what 39 people would have a beef about to thumbs down!!! How do I Gold Star this baby?
As always I love your stuff and the ride..... wishing you much success Jehu and I look forward to meeting you 1 day, I’m just over the state line in Vegas.
As a master electrician you would know shoving power into the grid without safety disconnects is very dangerous, since those same power invertors that decrease high grid power can also work in reverse. When a service worker is working on a line that they think is dead his solar system could make that line live, and kill the worker.
Do you actually watch his videos or are you just a troll. He is always about safety and he just didn’t address it in this particular video.
Dude this guy thinks my little inverter is capable of energizing the grid and killing a linemen...... he is either trolling or missing part of his brain
I know you'll probably not see this comment, but that fan on your inverter box may have issues running in that orientation. The shaft gets dry at the top, and will seize up. Certain fans have bearings that don't suffer with this issue because they've got grooves which move oil up the shaft when it's running.
It'll probably be okay for a while, just maybe keep an eye on it and replace the fan when it gets noisy.
Thank you for putting out these videos and links. I've been watching for about a month and have been able to learn a lot more than I imagined.
I was wondering if you could do a video about the connector buss bars.
Nice, I'm putting up my first system on my home (sailboat) too. I'm working with 3x 12v 150w panels.
Hey Buddy- love the content!!! Loved it so much I tried the set up myself but I having issues.... not sure where I went wrong?? Two inverters down and still can’t get it to work.... can you help me troubleshoot? 1st one we did plug it in with power but the second we didn’t and it still went error and burned out....
Exceptionally well done! In my area, if you generate more than you use, i.e. put energy back on the grid you will be charged for that electricity the same as if you were consuming it. Unless they change out the meter to a different type which keeps track of what is coming in and what is going out. Which, obviously, they won't do unless you jump thru the permit hassle. Therefore, I just learned I need to measure what my base (retired live at home) use is and generate exactly that much! Stealth solar here I come!!
Research ... Net-Zero Grid-Tie Inverter !
maybe try working on the base load to reduce consmption??! love the fan that is on wen the sun is giving energy!
Some other important parts to a grid tie inverter that weren’t mentioned. A grid tie inverter must automatically switch off when it doesn’t sense mains otherwise you risk electrocuting linesmen working on lines in a blackout. There didn’t appear to be an isolation switch between the solar system DC and inverter which is normally required by law. It might only be a low voltage system so it’s probably OK but Jehu knows what he’s doing. The point is, if you don’t, don’t even attempt to do it yourself. I wouldn’t be advising anyone to DIY their solar as what Jehu did there definitely does not translate to a typical HV DC array (say 5 kW) with a typical grid tie inverter with 300 - 400V DC input. I do know what I’m doing but even if I did all the wiring myself I’d still pay a licensed electrician to inspect it and do the final connections to the board. In Australia, with the generous solar rebate scheme we have here, it simply wouldn’t pay to do it yourself. For the same money Jehu spent I could get a 3kW array installed.
YES THIS! A shutoff is extremely important and you can KILL someone if you don't have one! Pay a professional and please don't do this yourself. Even a small amount of voltage will backfeed to the transformer and the voltage will go to primary voltage, it can be 13800 volts or more. That will kill someone working on a downed line. Unlike a generator, a solar panel will always push voltage whenever there is sun.
@@Alucardbsm Where is your proof this GTI can beak-feed a dead GRID? Oh, thats right, you have no proof ...
I am very interested in doing a solar generator like you did with the pelican case! What all do I need?
Also check your local electric and gas, water utility rebates!
Cool. 2 fans. Push/Pull cooling. Heat is the biggest enemy of inverters.
I think it's one fan and a port for it to exit.
@@specialk22tt Right, but adding another fan on the left to pull the air should make for better airflow & cooling.
@@briandowling8372 Agreed, but that's not what he did. lol
Inlet and outlet too close together, hot air from outlet get pulled into inlet.
@William Striker ...better pull-in fresh cool air than same air from hot outlet.
sir jehu.. i love to watch your vids and inspire me more.. i wonder is your battery case for power wall availble?here on philippines?
I love watching these videos cause I can learn more. I was able to install my own solar for cheap. Little less than $1 per watt. But I'm trying to learn how to do the battery back up as all that stuff I have yet to learn. But I have 16,000 watts of solar on microinverters. Can run dual air conditioners on a big house, pool, spa, well, shop and driving 30,000 electric a year while staying even with the utility.
love this topic brother, waiting on your to review of the Grid tied inverter...
Thank you so much for following up on your install! Amazing!
Dude, I love your channel and what you're doing! Keep at it, this is a great resource for people
Hey big bro luv the content it's very educationanl and motivational keep doing you! Thank you. Question tho have you heard of the Yinlong LTO66160H 40Ah 2.3V cells if so how do they compare
With the Headway 38120 HP 3.2v 8ah Lithium ?
Bro I just bumped into your channel. Thx man. Is there a actual DIY solar panel installation video that you have created? I couldn’t find it in your channel
Very inspiring video. I appreciate the fact that you have retired parents living with you! Your work shop area reminds me of the Most international space station. Your ladder at the end of the video was really different.
Ur awesome as always, thanks for the duck curve chart. :) I am also working on the same project, will let u know the feedback, however got a problem with connecting to grid tie. If you can make video how you connect it physically, that would be great, thank you :)
Great video jehu. Did you mix high drain and low drain batteries on your power wall?
"Stop being a part of the problem and become a part of the solution"
Love the ideology, like yourself I'm a avid problem solver, video was great!
Can't wait to have my own solar set up!
the air flow duct can be modified with the exit gases to be put on top, because hot gases rises it is tough for the hot gases to come down, hence if the exit is on top for hot gases you will get better thermals management
In Indonesia too we pay around 50$ for electricity and typical usage a day are same thank for your idea to store energy from the sun to save a bill
This may be in your top 10 of all the videos you've produced!
Maybe for the fan situation put a diy tunnel going from exit of gti to bottom of box with fan at bottom. A custom tunnel I think would be ideal so you keep the flow even when box is open. Also maybe a thermal alarm or gauge you can read from inside to keep an eye on the gti temps. Just my 2 cent, great video, always on point.
Great video we are doing our part we have 2880w on our home that is our 5th wheel .
Facebook sales page, look for used panels. I found a bunch of 5 year old 300-350 watt panels for $100 each. A lot where located in CA
Thanks for the video! IMO, if you only have one fan, youre better off using it to pull air OUT so its pulling cool air in passively into the box underneath the inverter (and put the fan on the opposing side and flip the fan direction). But as someone has said below, two active fans - one pulling and another pushing out will work much better and increase the life expectancy of your driver
I have a 3Kw system with enphase micro inverters.
Can I add a DIY grid tie inverter and panels setup to my current system or would I need to add more of the same as I have?
Thanks for the video, though can you show more of how it is connected to your house electric panel, or where it is plugged into your home?
How do you wire the 240v output into the house? I am a newbie and this video actually makes sense.
Most of the time if your installing more than 240v @ 40amps you have to do a line-side-tap. More efficient and less wiring (but pricey wire).
Isnt the fan on the inverter backwards? Pretty sure its "sucking" out of the box, "label down", no?
This is something that I would like to follow. Thank you for sharing the video
maan I love this content. I like that u make packs...lithium titanite ? avove 14 percent efficiency. not bad with today's mono panels. cheers samba dude
Yo I always am surprised at how smart you are at digesting data. Smart guy. I always learn a lot even when I thought I knew everything
I live in my travel trailer full-time. After watching your video, I believe it to be possible for me to power my camper full-time with solar power, propane gas and battery power. Any ideas on how I can start? I want to go off-grid in terms of powering my camper.
I bought 4 of the headway 38120 cells to try out a small little grid-tie setup. Also got a 300W grid tie inverter, similar (but smaller) than yours. Wondering what type of BMS and charge controller I would need for these... Suggestions?
You know if you had to go for the 'rigid' panels and install them a good 2 to 3ft above your roof, you can literally create shade onto your roof and cool your house further.
whatabout Grid tie 2 gen invertor with limiter? or MPP all in one?
You have located your converter in direct sunlight is that a good move.
Ones again great information, I just have one quick question, I bought two of the Uni-Solar PVL-136 Power Bond PVL 136 Watt 24 Volt 216" x 15.5" inches. Flexible Solar Panel. Easiest to Install Peel & Stick. and hook them in series to get 48v the problem is my meter and inverter (what's left of it) reads 84.6 volts, any ideas? Thanks
Loved this new video and the style of your animations. Did you do that yourself, what did you use? Very effective for the explanations!
I was thinking that in trying to cool that inverter it would be more efficient to pull cool air from the bottom and vent it out the top. The way you have it with the intake next to the exhaust, it will be sucking in some warm air too.
I am so glad you did not say two phase supply like many people do.... In the UK the neutral is only grounded at the transformer / substation and not locally. So UK systems come overhead in whats called ABC cables containing a single phase, neutral and earth.
Industrial building usually have three phases but homes only have one. If delivered underground in normally comes in by SWA (Steel Wire Armoured). That feeds to what is called a henley block containing a company fuse that is not replaceable and the blocks and meter have numbered seals.
The Live, Neutral and earth then pass through the meter and into the consumer unit. Unlike the US in the UK all circuits are protected by a 30ma RCD or GFCI as you call them. Normally the supply is split into two with one RCD protecting a set of circuits each of these are protected my an MCB (breaker) that is sensitive to high fault currents and gradual increases via a bimetallic strip.
The reason they split the load is that you are supposed to have the upstairs lighting and sockets on one RCD side and the downstairs lighting and ring main on the other. The idea being that if a fault trips the rcd only half of the house is isolated but it often is not wired this way.
The three phases are distributed over the houses on the street. For example the first house may be on the red phase, the second on the blue and the third house on the yellow. This often has people scratching heads when your power goes out but next door is still up and running. The problem is that the phases are now out of balance and will eventually blow the substation fuses. These are very scary as apart from the 3 x 11KV on the three phases these fuses go with a bang and have a pin that shoots out and trips the other two phases.
The feeds on the poles are even worse as they mostly use explosive disconnect. Yes they have a cordite based powder that heats until flash point and blow themselves clear of the feeder. If you are by the pole when this happens a change of underwear is normally needed afterwards. Like the US the national grid (that operate from a secret hidden location) have to juggle the loads on the grid to stop the frequency drifting or the voltage going to high. The EU state our voltage is supposed to be 230V but it is almost always around 240V. The EU do allow a 10% margin of error bless em (Grrrr) They have changed our wiring colour codes that we have had for 70+ years..... Im stopping now as I can feel my blood pressure rising. Needless to say they have changed operating procedures and regulations for no reason what so ever so I wont get started on that. This post is long enough as it is !
I do have to say however that our grid is very reliable, outages are very uncommon and repaired quickly when they do happen.
I hope this info was of interest.
Stu.
Who, in their right mind, wants to be on the grid? Or, for that matter, live in any urban incorporated area. Ever notice that the wealthy tend to buy " country homes" to escape the dictates of Cities, HOAs, Neighborhood Associations, Historical Districts, etc?
What do you think about the all in one system and which one you recommend. Thank you.
Hey Jehu, great job on the animations, fun to watch and I'm sure quite some effort to make. :)
Yep, I've volunteered for GRID L.A. on some of their installs. Photovoltaic / Solar Thermal Technician here.
Tips hat off, except i don't like the flexible solar panels aka Amorphous thin film, they'll peel and don't last like solid frame panels aka Monocrystaline or Polycrystaline. Pero te hecho PORRAS!!!!
i Like, OLE!
I like the way you use the animations, very reminiscent of the old Disney cartoons with Professor Duck, nice overview.
Thank you jehu for your effort!!
Jehu ... we are huge fans. Keep up all the good work. How can you do a system that is larger... allowing more of the electric use to be consumed on premises. Zero Export ? Power meter that trims Grid Tie ??
Nice books in the background ... !!!! Take care Brother. T
Thank you for all your work Jehu. Excellent educational videos and well made too! As always. Keep up the good work :D
thank you for educational video, what art/animation program did you use?
So how do you control when your batteries are charging vs discharging?
M for Mega.
m is milli.
So many have already corrected that.
No M stands for Mine
Hi Jehu I like this video.
in Denmark where I live we pay about $0,37 per Kwh.
and it's not allowed to put up a grid tie inverter without agreement with the electric company
Here in Denmark
It's not allowed in the US either. Jehu is just doing it anyway. It's potentially dangerous.
do you have a step by step guide on what needs to be bought and installed to make something like this happen? it would be amazing to find all this knowledge organized in one document with supporting links as necessary.
Lots and lots of variables, one day perhaps but I do what I can
Can’t find the 240 v AC inverter anywhere. Can you put a link to the one your using.
It’s unlikely you will ever find either phase in most households not having some kind of base load on it most times of day and night, but even if you did, the energy pushed out to the grid still rebates you on your bill as long as you have the power-agreement with the utility (which your setup wouldn’t have), or since your setup can’t be approved by the local AHJ (fire department, building inspector and power company) because the equipment is not installed by a licensed contractor and isn’t UL-approved and thus is not permutable, you can do an end-runaround and still get paid for all the power you put back into the grid IF you get the utility to put back an “un-smart” analog-style electrical meter which will spin backwards no matter if you have an agreement with the power company or not (hint, hint!)….. You can use any excuse you want to change the meter back out and they will charge you $8 a month for manual metering and $300 for the meter but in the long run if you over-produce, it will be worth it…. The excuse most people use is that the meters kill the bees or that it gives them headaches from the unfiltered billing frequencies emitted back into the house wiring from the box. There’s plenty of documentation about health issues from smart meters to use as ammo to get them to change the meter. Be insistent if you want to go that route and you’ll get what you want.
Also, tying the inverter into both phases still doesn’t really help if you have no base-load on one of the phases because it is only putting half of the power out on both phases at any one moment, so if one phase don’t have a load, it’s still going to dump half of the power down that phase without the base-load and half on the phase that does have a base load because its output is basically split into two phases by putting it through a low-cost center tapped transformer so unless I missed some unknown facet of low-cost inverter design, I don’t think the cheap Chinese made Amazon and ebay-sold inverters like you and I use on your home-brew solar setups are so smart as to test and provide deferential power output only to the heavier-loaded phase., it will be evenly split via the passive transformer component to both phases. But since lighting and outlets are sometimes on different phases (in a well designed house), and if not there are still plenty of devices on during the day (electronics, cable boxes, computers, refrigerators, pool pumps, fans, air conditioners), split across various different circuits of your home, and because air conditioning is split across both phases, it’s almost assured with that size system, wether you wire for 120V or 240V will not likely make any difference as all of the electricity you put out is going to be used and not sent to the grid unless you are very strict about shutting off devices not in use and actually have base load only on one circuit in your entire house. Heck one flat screen TV (150W+), a cable converter (75W), a fan (50W) and a refrigerator (750W+) can already exceed 1000W handily. Not to mention computers and their accessories (hundreds of watts), alarm clocks, lighting, microwave oven, telecom equipment, clothes washer and driers…. Add battery storage (like I know you have), and it makes double-sure none of your power produced will ever be going to the grid.. and you can keep your smart meter even! :P
I charge batteries and use load sensing grid tie inverters so that I don't send any energy to the grid and can use the energy during peak time.
Where u buy them?
@@Coladudetje - ON eBay - they're Chinese, non UL listed, rogue install.
Should add a vent on the top too, with a vent hood to stop water coming in then you can have air coming in and hot air exhausting out.
what are those panels at at the end of your video? do you have a website i am amazed that you do that by yourself, where can i start can you teach me?
Hey Jehu, where did you get the 240v inverter. I would like to buy one, but cannot find one like the one you switched to in this video. Thank you
You should try pc water cooling for your inverter. No need of fan...
I’m not quite following your reason to drop from 2 inverters, one on each phase to 1, and how can you grid tie without having power go back into the grid? Seems like during a power failure the grid would have the potential to take all the power (lineman). Love your videos.
That inverter shuts down when the power goes down.
Hey, where did you get the 36v 18650 battery packs, for the power wall?
Excellent video. Question: I have a single 250 watt grid tie inverter for 120v (one leg). Does the imbalance it creates cause a problem for the system? I've never popped a circuit breaker.
A 250 Watt inverter is small enough to make very little imbalance. What does a 120 Volt / 1,000 Watt do ?
Do you feel the air flow out of the left one ?
I started with one 100 w/ 12v panel and two Wal-Mart deep cycle RV Marine batteries. Now I have 400 watts on the roof and my battles still can't keep up with a small refrigerater....so I added more batteries and I finally came to the conclusion I don't get enough sun here in Missouri... I'm totally off grid and I love it because my energy needs are small...and I don't need permits...lol
You did not know how few hours of sunlight you received daily, *BEFORE* buying the PV Panels? 400 Watts of Solar Panels is probably the minimum size to just run a small refrigerator on a very sunny. What are you going to do at night?
since those inverter hate water and can get too hot, smart to make that case and add a larger fan. I might take this idea as I just want to start a little solar project at least in the day time. Get some benefit other than a really high mortgage.
Great video. I see this was an old project. However, I am on a very similar scenario... couple of questions what's the model of the inverter you said is 240V? I can't find it anywhere. Is it 60hz or 50hz? Also, how did you connect it to the AC unit? Just in parallel in that cut off box? I couldn't find any videos of that installation. Thanks
You should really add an outtake fan or swap the intake to outtake to improve airflow over the inverter!
How does moving the fan to an outlet help? Surely with the fan in its current position the bottom of the inverter actually gets a more directed stream of air?
I'd say if anything, rather add a second inlet fan to move nearly twice the amount of air through the case in parallel. That way each fan is moving its own stream of air. You'd just need to make sure there's enough exit holes to not restrict the airflow.
Hi, have you managed to connect the batteries?
Your videos about bms and battery packs are very good and simple to understand, I wanted to know how to integrate a DIY battery with a grid tie solar inverter.
I have a huawei solar inverter that accepts a battery, but it has to be a huawei battery (it has its own communication protocol to work) and I don't want a brand new battery as a home storage system, I believe that is the role of second hand EV batteries.
Jehu that airflow is not optimum . The exhast side needs to be directed 90 degrees to the left away from the intake side . Other wise you will suck warm air back in . You can get something like this ECOWITT GW1000 Wi-Fi Weather Station Gateway with Indoor Temperature Humidity Pressure 3-in-1 Sensor from amazon its easy to set up and with the app ws view you can monitor temps from your iphone remotely. You could add a second fan to blow hot air to create positve air flow inside the box. How are those Yi cameras working for outdoor use ? can you do a little video on your setup ?
Are there any issues when stacking batteries? Shortages? Contacts touching?
Nice video! What are you using to see your home energy use on your phone? I like it.
I'm just going to have to shoot jehu an e-mail and ask him
Hi Jehu, Love your videos man, keep up the great work. Quick question, have an old 10 yr APC UPS, do you think it is possible to beef up its run time by swapping the SLA it comes with with a Lithium battery, if yes, could you do a video on something like that, it would be a great project for backup power for small devices like laptops, modems and such. If you could even do a video showing us how to build small UPS's from scratch that's be great too. Thanks again man.
Yes, I’ve done one already a while back, the Puerto Rico one
Lithium Ion changing the game naa Jehu Garcia changing the game lol! haha love your videos man
If there's a power surplus during the day, why are the rates higher then?
What would you say the best advice for someone living in an apartment to have for solar? I've thought about using a grid tie inverter and plugging it into the nearest outlet as to help lower my electric bill since I do have a smart meter
You need an inverter that monitors overall usage and doesn't output over that, or a small system that never goes over your base load. If you back feed in solar power above what you are using, standard smart meters only roll forward and will charge you for that generation. It's likely that many have circuity that will trip and send a notification to the utility that something not quite right is going on [unknown]
On your box the air going in the fan is sucking the air coming out of the box. Should put a divider on the outside of the box or a 90 deg intake to suck the air from the right side of box away from the hot air coming out.
Thanks man, I learned a bunch. One thing I don't know is, do you have to get permission from the utility company to push electric back on the grid or no, just hook the convertor up.
You are supposed to get a grid tie agreement.