H200H, As an electrician, I am sure that you have been in the situation of looking for spare wires in a bundle or cable tray. You think you have found a spare, then put your voltmeter across the wires and read 50 volts! Surprise! How did that get there. They you pull out your trusty Wiggy and check and find 0 volts. So it is a spare wire and that expensive VOM is simply lying to you? The wires are not connected to anything on either end, but your volmeter (which depends on current flow to measure voltage) says it has 50 volts between the two wires! This is a common example of induced voltage. To say that happening in homes is just absurd—is sort of trying to say that the law of electromagnetism that causes transformers to work is also absurd.
Lancie01 could be a 13-yo kid or a bored 45-yo adult experimenting with a chatbot. But in any case what he’s doing is misrepresenting himself and he’s kidding no one but himself.
Hi Lancie01,
Looks like you’ve met the CHB resident expert on anything someone else posts about.
As you can see when unable to refute that post this is what he resorts to. Why it is allowed here… no one can tell us. So sorry you have to experience this as it looks like you’re a new poster.
H200H, I really wish I could be 13 again, or even 45, or even 65! I have never used a chatbot in my life, and would not know how! I misrepresent no one, especially my own self. No, what you read is what I am.
billinin, Thanks for the info. Yes, I had reached the conclusion that H200H is an agitator, not an informer or helper.
#billinin… look at his posts… no typos, edits are a full paragraph added at a time, explainations are a mixture of reasonably accurate but often extraneous and irrelevant detail, and if you google many of his phrases you’ll find them verbatim on sites like Quora.
It’s bot output crap… Lavarock & robertpri… whaddya think?
FWW: Here’s what Lancie01 edited out of his first post AFTER he got pushback from me, billinin and robertpri…
For those saying the grid can’t handle all the EVs coming online, it might help if we banned crypto mining:
In at least 12 states, including Arkansas, Ohio, Oklahoma, Tennessee, Texas and Wyoming, The Times identified Chinese-owned or -operated Bitcoin mines that together use as much energy as 1.5 million homes. At full capacity, the Cheyenne, Wyo., mine alone would require enough electricity to power 55,000 houses.
Since Bitcoin mining was banned in China in May 2021 over concerns about energy usage and economic destabilization, Bitmain has shipped 15 times more equipment to the United States than it did in the previous five years combined
Aside from the real or imagined gain with the cyber currency there is nothing. At least real mining activities, despite their drawbacks and harmful side effects, produce something materially useful for the benefit of mankind.
H200H,
Your “pushback” has nothing to do with any of my edits. Those are for corrections, and in this case, not to call anyone dumb, because in some cases it makes sense to leave things running, such as for mainframe computer servers. For most people at home, it will save on electricity charges, plus the biggest savings is on the life of the equipment. No one has yet built any type of electric or mechanical device that does not fall under the Law of Entropy. That means that once a device is built, its expected life starts declining for every minute that it is running. Manufacturers hope that everyone will forget that little law that governs EVERYTHING in the known universe.
Your original post was in response to the question regarding whether or not to turn the power off on a level 2 home EV charger. Your post stated:
Any EE with 40 years experience and of sound mind would VERY likely know that a Level 2 EV charger with 70-amp service would be: #1. Hardwired, #2. have its own self-contained switch, control and power output regulator, #3. is not really a charger but an AC power source for the on-board charger that every EV has that’s been sold in the last 5-7 years… and #4. installing a switch or shutting the thing down to save money on electrical utility bills is just plain silly.
Using your logic like comparing turning off a 100-watt incandescent light bulb when not in use to turning off a computer printer that consumes 1watt in sleep mode is just plain silly and is not something a competent EE would recommend. If people followed your advice they would spend so much time and energy running around unplugging & plugging in their TVs, appliances and shutting down and powering up their cable modems, telephones, and wifi routers that they would have no time to use them.
I did some quick calculations (using CharGPT of course). I asked what is the loss for AC power over 20 feet in a 70 amp circuit, used 5 hours each day. I did not specify how close the wires were. I also had it calculate based upon the horrible (tax/tip/dealerprep costs included here in Hawaii of 35 cents /Kwh).
In a month, the added cost to me would be 35 cents that month which equates to 0.11% of my monthly bill.
Yes, there is a hidden cost, but not enough I would worry about. Mainland people pay as little as 17 cents / Kwh and supposedly we pay 41.5 cents. It appears my rate is higher than I used to calculate and that 41.5 cents does appear to include tax, so it has risen since I last looked. (17 and 41.5 rates from U.S. Bureau of Labor Statistics for Sept 2023).
You may really believe that bringing esoteric subjects like entropy and parasitic losses in house wiring to a general conversational forum like this forum is the thing to do. But very few people know or care about them or wish to discuss them. Most of us learned a long time ago that ordered things over time will degrade to the chaos of disorder and the inherent electrical losses you try to introduce as meaningful to our daily lives is so small they are insignificant.
in Idaho we pay: from Sept to May
KWH 0–800 801–2,000 Over 2,000
PRICE (CENTS PER KWH) 8.0390¢ 8.8627¢ 9.8154¢```
and in the summer : from June to August
PRICE (CENTS PER KWH) 8.6518¢ 10.4033¢ 12.3585¢
The original topic was about EV chargers. The power supply is external. If it pleases you, leave as much power turned ON as you can at your house. It will really, really help the environment by putting more exhaust gases into the atmosphere at your local power plant. Electric vehicles are going to be a huge problem when the majority of people own one. I doubt if that will actually happen. We will run out of electricity long before that happens, unless we build a huge number of nuclear power plants in the next 30 years. Many utilities are making plans for building nuclear already. What other practical choice do they have left, after petroleum is gone?
No, I do not advocate going around unplugging appliances. There is no need because most of them still have an ON/OFF switch. Unfortunately there are a lot of newer devices now that do not have an OFF switch. When I was in electrical engineering school, the first thing designed into a circuit had to be the On/Off switch. Without that, you had nothing. Now people are paying huge prices for those little nothings.
Other practical choices (besides nuclear) are solar, wind, geothermal, ocean wave (all of which are being used in Hawaii).
In some places, heavy vehicles are generating electricity from roadways. “Mechanical energy exerted by traffic, especially heavy trucks, can be converted into electricity in several ways. The mechanical stress from traffic can be captured by piezoelectric material, or causes relative movement in electromagnetic generator.".
Many decades ago I lived at the T intersection of a road where car headlights would shine on my house. I though that I should put a solar panels there to capture the headlights and get free power.
Don’t try and confuse us about what your original post was about. Here again is what you said:
The term “their EV charger” refers to the level two home chargers that most EV owners use to charge their BEVs. With this current post stating “The power supply is external.” you are either purposefully attempting to obscure and confuse that fact or, you know nothing about the subject and are just posting stuff from a chatbot or cutting and pasting stuff from a google search.
Your comments in this latest post about future power production is irrelevant and is either cut-and-paste or chatbot crap.
Your last paragraph about power switches on home appliances is inaccurate. Any kitchen electrical appliance with a clock is connected to your house wiring and any device you use a wireless remote to control, like TVs, DVDs and audio equipment are as well. Thermostats, HVAC, security systems, smoke & CO2 detectors etc. are connected. Today’s computers will power up and update from sleep mode and printers will wake on command and print
So the question is… what are you suggesting people run around and turn off when not in use?
One Google searech I found:
Can I leave my Level 2 charger plugged in all the time?
Keep it plugged in. It depends on the brand but a typical EVSE will draw about 10w x 24 hr = 0.24kwh or 2.5 cents per day at my local rate. It eventually wears on the socket to unplug every day, and its just not convenient.
Somebody else: If it helps. Our Smart PRO charger is 3w on standby. So more like 26kWh a year.
Somebody else: The Zappi is specified as 3W standby which is not too bad.
I wouldn’t be too concerned, myself. With that said, “Alexa, volume zero”
My ChargePoint Home Flex CPH50 consumes 0.8 watts when not plugged into my car and 3.53 watts when it’s plugged into the car but not charging it. The car controls the charger and shuts it off when the charging level, which is typically set by me at 80%, is reached. My CPH50 is hard-wired to a dedicated 70-amp circuit and is also on my WIFI which gives me full control of it, for scheduling etc., via an iPhone app as well as charging history and cost info.
H200h: Apparently all my household devices are obsolete. They all can be turned off and stay off until turned on again! My TV is plugged into a power strip, along with the antenna amplifier, sound bar, and wireless headphones. One switch push, and all of it is OFF, with no possibility of parasitic power bleed-through. I have power strips that my computers plug into. I don’t care about updates or bogus sleep mode. When I hit OFF, I want them OFF. Period. I use the computer screen OFF button, let it power down, then I turn off the power strip, which guarantees that the computer can’t be started remotely. All of my smoke detectors are battery operated, no outside connections. My microwave is a commercial unit like those used in restaurants, that I searched for at restaurant supply companies, one that only has one control, no clock, no anything except for ONE timer knob that turns it on, sets the time, and then turns it OFF completely, no screen to soak up useless kilowatts. My kitchen range is a natural gas unit that has knobs to turn on and ignite the burners with spark devices. It works without electricity or Internet connection. You don’t need to give in to the type of appliances and electrical devices that you describe. There are options, if you really care about reducing your power footprint. The truth is that most people can’t be bothered to wait for an appliance to turn on when they want it. Instead they keep their devices running 24 hours a day, just so they will be instantly available! Our society is at the point where people think that they can’t wait for anything! So most people pay big bucks to achieve that instant access, and buy many replacement devices that deteriorate during those long idle hours in the middle of the nights, running for no purpose, going downhill toward uselessness, using power (and electronic parts) that can never be recovered. So we can feel modern, sleek, with it, up to date, a man for the times. Yeah.