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eDoc2020
JerryRigEverything
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Comments by "eDoc2020" (@eDoc2020) on "JerryRigEverything" channel.
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@CobblerEx 410A is indeed being phased out here in the states. The market was supposed to shift to other refrigerants this year but they've obviously been delayed. The main holdup is building codes not being updates to allow slightly flammable refrigerants.
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@james2042 It depends on utility rates and the particular house. I'm guessing their neighbor has a ducted system which is less efficient than mini-splits.
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It converts from one DC voltage to another.
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I don't think people are scared of leaking furnaces. The only reason we're okay with stoves is that they burn much less gas and are usually supervised.
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It varies by jurisdiction. Where I live in Massachusetts we have a similar deposit system on some containers (I believe mostly carbonated beverages) and when we return them to the store we get refunded. A few other states use this system but most do not. I don't know if other states use any different incentive programs.
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To go from 0% to 100% on a common 240v 32a charger the 200kWh battery would need 26 hours to fully charge. At $.20/kWh (AFAIK above the national average) this would cost $40. That is a lot of money but surely much less than an equivalent tank of gasoline.
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On the other hand you are directly affected by your own home electrical work. You'd probably read up on all the rules and double/triple check everything as you go along. Meanwhile a professional can grow complacent and make hasty mistakes, or just do it good enough. As countless others have pointed out mistakes were made in Zack's installation.
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@TheSpotify95 In terms of labor it's much more cost effective for a business to replace lots of lamps at once.
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I think it will be easier to hotwire than to make a key from the video.
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@matjazwalland903 Capacitors large enough to make that much of a difference are crazy expensive. That's the biggest reason. Plus to do as you describe you'd need additional high-power converters to decouple the capacitor and battery voltage and that will just add inefficiencies. On top of that batteries in EVs (especially plug-in hybrids) are designed to handle high current. Unless you have something like a first-gen Leaf which lacks a battery cooling system it's a complete non-issue.
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A standard American wall has wooden studs behind the drywall every 16 inches. The batteries mount onto the studs which are at least 2x4 nominal inches, aka 38x89mm actual.
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With the huge glaring exception of Tesla EVs aren't hard to repair.
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@shapshooter7769 Maybe you misread what I said. I was saying non-Tesla EVs are easier to repair. But if you want someone working on a Tesla, search for "Tesla wanted him to pay $22500 to replace a battery pack, we did it for 75% less!"
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I don't think it's as bad as you're making it out to be. He has a 30a breaker on the wire so it is protected from overheating. It will be pretty useless because the breaker will trip after a few minutes but it won't set the house on fire. And in regards to the video being dangerous to others, it's really not. Anybody ignorant enough to blindly replicate this wouldn't have a way to know that 10AWG wire is used. It was never mentioned, I presume you only came to that conclusion because of the orange jacket.
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They don't seem noisy on video, Zack's voice is coming out a bit louder and I don't see a microphone on him. 15m is definitely enough that the noise won't be a problem.
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If the battery is of a modular design sudden failures can be repaired for much less than the cost of an entire pack. In terms of natural aging, batteries are still quite usable at "end of life." They will just have a bit less capacity and/or power.
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It is normal for houses to have air conditioning and a furnace. The older heat pumps didn't work below freezing so they are next to useless if half your heating load comes when it's below freezing. If you live where it never goes below freezing heat pumps / reverse cycle aircon work fine and that's why it's the norm down under.
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@ray.upside-down Really? Laptops refusing to operate outside of the case is the stupidest thing ever. It's one thing if the programming isn't smart enough to work without a touchpad or something but purposefully disabling the system is just cruel. Do they at least give an error code?
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I don't see why so many people are complaining about the lack of earth ground. I don't see how it makes a difference here. Can you think of a situation where it would be unsafe? What's more important than an earth ground is proper bonding, meaning the grounds of everything are connected together.
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@somecringeuwu3928 Yes, absolute gem of a comment.
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Basically all commercial hydrogen is produced using steam reforming of fossil fuels.
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You can get a pretty accurate measurement of the charge but range is always an estimate. For a given charge the range will be much better strolling down Main Street at 35mph vs flooring it while pulling a trailer.
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Some American homes do and that drives up the average. If you exclude HVAC the, cooking, and hot water it's probably more like 12kWh/day.
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Each stack has a 6kW inverter, together they are 12kW.
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What does the grid have to do with autonomous driving? ICE cars can be autonomous just like electric drivetrain cars. And things breaking is sort of paradoxial. I'm a bit afraid of autonomous cars as well even though they have a better track record than human cars. The big difference is probably that autonomous failures are probably more deterministic than human failures.
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@billycroan2336 I wasn't watching super closely but if the conduit is only used for protection I don't think you need any junction boxes. Of course in this case the NM-B cable would need to be fully intact from end to end.
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The lights are connected in parallel, it's just the wires themselves which are in parallel. Daisy chaining general-purpose power connections is perfectly fine. Star connections are only needed in specific applications, and even then it's usually just the ground. I don't see the point in mentioning that 10 4 amp lights would draw 40 amps. Zack (his name isn't Jerry) is only wiring two headlights. Part of engineering is knowing what the requirements are. There's no need for the lights to all be perfectly matched. If there were giving each its own cable to a common star point isn't enough, you'd also need to match the length of each wire. Where I do agree with you is that it's not great to wire all the lights on one fuse. But I don't say that because it makes it easier to identify which light failed, I say it because it reduces the chances of a single failure causing all your lights to fail at the same time when needed for safe driving.
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I think most of the glass in the panels can be recycled, but that doesn't really matter. Unless struck by a meteorite there's little reason a panel will need to be replaced. If you want to upgrade you just pass the old panels on to somebody else.
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For what it's worth CAN wiring should be daisy-chained with a terminator at each end. Using an (electrical) star topology could cause signal integrity issues.
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@M4l3k0 For solar panels in particular the dependable generation means taking out a loan to pay for it is relatively low risk. If your monthly payment is $50 but it saves you $100 a month you'll be ahead right away.
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@M4l3k0 In the US there are solar leasing companies. They'll install panels at no cost to you and for a period of time they will keep a portion of the energy produced as payment. After that the system is paid off and you get all the electricity for free. This model seems to be the most popular in the US. Is there nobody doing this in the UK?
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@M4l3k0 It's the old paradox, where in order to save money you need more money.
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Where are those temperatures coming from? Modern heat pumps usually maintain a COP of 2 down to 5F outdoor temperature. If you need heat strips it's because you need more heating.
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I suspect the video was recorded out of order, so the picture shown before was after the wire was installed. At the end of the video we see the new charger is connected to the middle section of the tandem breakers.
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I'm sure he'll never do that. Hydrogen fuel cells are limited in power output meaning they are useless for acceleration. They need to be combined with batteries or similar tech to come close to practical.
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That's the best part, you don't need to replace them. Unless there's a catastrophic failure they just keep working at reduced capacity.
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@Tkozuh Panels are surprisingly strong, they're made to withstand hail. It's normal for panels to survive while everyone else's asphalt roof is ruined. If a panel does break within 25 years it's probably covered by warranty. If not, a single panel is $150-400 and easy to swap out.
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@Tkozuh If hail is regularly going through everybody's car windshield then solar panels are probably a poor choice of economic investment for you. Standard panels are only made to withstand direct hits from golf ball sized hail. If you just want to play around with the technology you can throw together a basic usable off-grid system for under $500. That's less than the latest smartphone or gaming console.
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@Tkozuh I was talking about a mini-system. I'm sure you can get a 300W panel, charge controller, 1kWh battery, and cheap inverter for around that much. It won't run a full house but it's enough for decent lighting and/or a small refrigerator. And I'm not sure where your $15k panel-only price is coming from. 7kW of panels should have no problem generating 30kWh/day on an average winter day. 20 panels * $200 each = $4000 in panels. I haven't checked recently but I don't think panels have gotten 3x as expensive in the past year or two.
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@Tkozuh The main point of the mini-system is to have fun experimenting. But it's also useful because it gives you a decent source of electricity when the grid's down. You can also take it with you if you go tailgating, glamping, etc.
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@Tkozuh You need capital, not income. An important difference. You can have plenty of money now but might not be able to rely on future income. Or you might even use bank capital. If rates are favorable you can finance the system and have monthly payments less than the electricity savings. You'd be saving a little bit every month but then once it's paid off the electricity would be entirely free.
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@Tkozuh I can certainly agree that battery storage does not make sense for an average customer to save money.
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Cheapest energy source, not cheapest power source. The solar produces electricity at $0.00 per kWh which can't be beat. You only need to pay once for the power capacity
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@zack9912000 Only the crappiest heat pumps shut off at 32F. Usually there's specified output down to 22F outdoor temperatures. You should still have aux heat but even in northern states you can go 90% of the year without aux heat.
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YOu mean mini-split units? They're considered unsightly and you need a head in every room. If you already have ducts a central system is easier.
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@costafilh0 A built-in model is going to be more expensive to install. I did know that mini-splits are considerably more efficient.
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I thought I saw MC4 cables being connected, suggesting that it is a hybrid inverter. Even if it's not, most of these battery systems support charging from microinverters during a power failure by using frequency control. Sol-Ark can additionally accept AC coupled solar via the generator input/auxiliary output.
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Your unit sounds like an older inefficient model. How warm/cold it feels at a given temperature is dependent on the airflow and the discharge temperature. Your old one probably discharges 90F on a good day and 85F (or worse) on a cold day. A modern inverter unit will push closer to 100F and a furnace usually pushes around 120F.
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AFAIK OBDII is only used for emissions inspections which the vehicle would be exempt from. Besides this is from 1995, a year before vehicles generally got OBDII.
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@Dat_Sun FCEV range isn't bad and unlike BEVs you can refill extremely quickly.
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