r/Electricity

im a begginer at electrics. and im am having a problem with my circuit

i am tryiing to have my circuits curret at 20mA with a 3v battery in tinkercad simulator
the objective is getting the led in the circuit to have 20mA of current through it

if i do 3/0,02 i should have 150 ohms of resistance to get the correct

but im measuring 6.69mA of current in my multimeter

trying again, i used the voltage that goes through the led ~2V

and doing 2/0,02 = 100ohms of resitance

with this value at my resistor i measure 10mA

what am i missing to get the current at 20mA?

https://preview.redd.it/2nun76b10ibh1.png?width=872&format=png&auto=webp&s=4484f79bb56f732f513c3a9e00eb3b2edca58e9e

https://preview.redd.it/gzn8de830ibh1.png?width=885&format=png&auto=webp&s=00f06d273ff8ed96062fa073f88caeca0b216376

U.S. power grid operator PJM, the nation's largest covering much of the East Coast and Midwest, on Friday ordered customers in emergency alert to curb their use, as it battled generator outages, overloaded transmission lines and surging air-conditioning demand during a prolonged heat wave.

PJM Interconnection, which manages the electricity system serving 67 million people in 13 states and the District of Columbia, has issued emergency energy alerts amid expectations that hot summer weather will drive up power demand.

The 13 states are Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, and West Virginia.

Hey yall quick question. I’m moving out my apartment this week but I got a notice from energy saying that my power is scheduled for disconnection after June 30th. To my surprise my lights are still on but does anyone have an idea how long after the notice do they go ahead and turn the power off? I just need the power for two more days to finish packing

So after drilling in the ceiling underneath my bedroom this morning to hang a new light - I suddenly noticed the light in my bedroom was on and wouldn’t switch of anymore.

On a scale of 1-10 how fucked am I? And how dangerous is this? I took the bulb out just in case. All other switches are and currently not connected to lights.

We bought a portable ac unit for our living room. We had it running on high for 2-3 hours. In the same room, I had a baby monitor plugged in and charging in a different outlet. I went to go unplug it, and it was very hot to the touch as were the metal prongs. I felt the outside of the physical outlet itself, and it was quite hot and went around the room and all of the outlets, even those with nothing plugged into it were hot to the touch. Immediately, we unplugged the AC unit and everything else that was plugged into any outlets that share the same wire series. We turned off the breaker for our living room. The outlets are starting to cool down. The walls around the outlets feel cool to the touch. They have been unplugged for almost two hours now. I’m assuming this is not normal and we should call an electrician, but I also have high anxiety and don’t want to gaslight myself into thinking it’s fine when it may not be. The breaker never went off on its own.

I’m needing some help on things I can check on our newly built house. We bought it back in Aug of 2025, it’s in NC, and since then our energy bill has been outrageous. Our recent bill I just paid was $327. I’ve only lived in rentals up to this point, smaller than our house but not by much. And I’ve never had a bill that’s even half that price. I’m wondering, what are some things I can check on with the house to see if there is something causing these high bills? We are a family of Four and it’s not like we have electric devices just running 24/7, nothing that I can think of the explain such a high power bill.

Edit: thought I included the sqft but I guess I missed it. It’s 3100

I’m facing a bit of an unusual problem: I need to consume around 3,000 kWh of electricity within the next 1–2 months. Maybe more, if the timespan expands.

Does anyone have any practical or worthwhile ideas for how to use that amount of power efficiently?

Thanks in advance!

Best regards,
Skund

edit:

first of all, thank you for all the great ideas!

some clarifications:

I really have 50-100kWh PV surplus and I can not send it back to the grid at the moment until I get a new meter, so I like to use the surplus over the next 1-3 month for something, ideally storing it for the winter, but my budget does not allow for an investment greater than 2-3000€ the less the better.

I was looking into some ancient (antminers s19k pro) for ~ 400€ a piece and thinking about getting two and selling them after the summer.

Cannabis is out, as I think the growth time is way longer (correct me if I am wrong)

I would like to gain something from it, or benefit my neighbors/community.
Unfortunately our charging point is only accessible for really small

electric cars, so most of the neighbourhood cars are also out

​Chris Bowen and Labor promised electricity prices would come down, but the reality hitting my mailbox tells a completely different story. I have just received my new charges: 4 cents more per KWh and the daily charge is up by 39 cents a day. Don't tell me to shop around, because these retailers are all in collusion anyway. It is just another massive hit to the household budget during a cost of living crisis. Nice one Labor!

7/1 update: Let’s turn this into an adventure. Requested an “outage audit report” from Xcel via customer service. They said it takes 6-8 business days to generate. Stay tuned.

Original: Hi all. I’ve lived in Columbia Heights for the past 6 years. Since moving here, we’ve experienced an ungodly amount of power outages. So many that Xcel even gave us a credit (a very small one) on a bill because we surpassed a certain number in 2025. This year we’ve already had 5 and I’m currently writing this from the pitch black of my living room at 10:45pm. I’m over it. I have an infant now and we have to have reliable power. This has gone beyond unreasonable. 1-2 a year at MOST is understandable. I looked at my auto text history from Xcel and we’ve had 12 in the past year according to notifications.

What can I do about this? I know step 1 is calling them, but am I ever going to be able to complain loud enough to get them to fix whatever infrastructure is causing this issue? I’m but a wee peasant to them.

Please help.

Hi everyone,

I'm from Maharashtra and need some advice regarding a very strange electricity issue.

A few weeks ago, our electricity meter was replaced with a new smart meter after we raised concerns about incorrect billing. Instead of improving things, our latest bill came to around ₹15,000–₹16,000, which is far higher than our normal monthly bills.

To make things worse, today only our house has no electricity, while all of our neighbors have power. When I tried to register a complaint, I was told I couldn't because the ₹16k bill is unpaid.

Here's what I've checked so far:

The smart meter display is ON.

It shows around 226V, so power is reaching the meter.

The meter always shows 0.000 kW even when I turn on lights and switches.

The house has no electricity at all.

My inverter also isn't charging its batteries, but I'm not sure if that's because of this issue or if the inverter has failed.

in my flat in jeddah, electricity meter is shared. main meter in the name of owner while he installed submeter in my flat to pay as per monthly consumptions of electricity.
the main meter supplies power to multiple consumers in the building like elevator, haris room, main water pump, building lights, one two room flat and a single room rented by the owner.

i’ve been paying since six months and owner having been paying his share.
but since last five months owner stopped paying his share of the bill.

to avoid disconnection i have paid my share and his share. Now i have paid 1500+ SAR in advance bill in good faith which is his share.

this month total bill came of amount 3850 SAR. i calculated his part as 2350 SAR and my part as 1531 SAR. As i have paid in advance bill which was 1548 SAR. now the total bill should go to the owner to clear all his previous balance but he refused to pay all of his bill and asked me to pay in full amount because it belongs to you. i was surprised to listen.
i told there is submeter and i’m responsible to pay as per my submeter consumption but he is not accepting.

i have all records of my payments and my submeter pictures month by month.

only two days have left for disconnection of electricity because of non payment

what to do at this stage. as my family is living with me and season too hot in jeddah nowadays.

owner is urging me to pay the full amount of the bill.
3850+1500=5,350 he wants to me pay which is totally unfair and unjustified

any help to resolve this issue as the time is short
and don’t know what to do in this situation.😢

please share your experience thanks

i dont know if this is the best place to ask but i want to connect my portable 15amp table saw and my 5hp shop vac to my 12 gauge extension cord but i would need a splitter. im looking on amazon for another 12 gauge splitter or a 10 gauge splitter. would this be safe to do? my other option is to use 2 separate extension cords but they would be connected to the same household 120v outlet.

July 1st ... my power supplier has finally released their new plan incorporating 3 free hours of electricity every day.

A brief background ... I have solar panels, around 26KW/hrs of battery storage and a Smart Meter. In Summer I barely need the grid and in winter I can top-up my batteries during the day and/or overnight to avoid paying Peak rates.

My daily charge has already gone up 50% more and to get this "free" electricity I would have to change to a plan where it goes up 100% more. Long story short .... changing to a plan that gives me "free" electricity would cost me more than my costs have gone up already !!!

I haven't calculated the extra cost for non-battery owners but whatever you get for free is likely already offset by the extra you will pay. Don't sign-up blindly.

I am trying to budget to see if we can afford to rent. We have never had to pay water or electricity before so I’m curious how much I should be putting away. We are a family of 4 with a 4 month old and 2 year old. We work full time so nobody would really be home throughout the day and we are almost always out on a Saturday all day as well. Night time and morning will be our main usage