Those "Emergency Heat" heat strips use a crap-ton of electricity. Heat pumps are made for efficiency and can't keep up with weather like this.
XXXVII said:Cassius said:V8Aggie said:
I don't get it. I've lived in over 20 homes and they all had gas heaters. Am I missing something? I mean everyone's AC runs off electricity so even if half of us gave electric furnaces how are we going to put a dent in the grid?
Good point. Except for one house, it's always a gas furnace. I did have a heat pump in one house which was electric and a joke. Not getting this increase in demand.
I'm not sure my gas furnace will run without electricity. It needs electricity to run the thermostat and relay boards.
XXXVII said:Cassius said:V8Aggie said:
I don't get it. I've lived in over 20 homes and they all had gas heaters. Am I missing something? I mean everyone's AC runs off electricity so even if half of us gave electric furnaces how are we going to put a dent in the grid?
Good point. Except for one house, it's always a gas furnace. I did have a heat pump in one house which was electric and a joke. Not getting this increase in demand.
I'm not sure my gas furnace will run without electricity. It needs electricity to run the thermostat and relay boards.
Cassius said:XXXVII said:Cassius said:V8Aggie said:
I don't get it. I've lived in over 20 homes and they all had gas heaters. Am I missing something? I mean everyone's AC runs off electricity so even if half of us gave electric furnaces how are we going to put a dent in the grid?
Good point. Except for one house, it's always a gas furnace. I did have a heat pump in one house which was electric and a joke. Not getting this increase in demand.
I'm not sure my gas furnace will run without electricity. It needs electricity to run the thermostat and relay boards.
Yeah, but that doesn't explain a huge surge. It takes very little electricity to turn on the furnace.
rynning said:
So does air conditioning use more power than gas heating or not? If so, despite some number of houses using electric heat, shouldn't the grid be able to take this more easily than the worst summer heat waves?
rynning said:
So does air conditioning use more power than gas heating or not? If so, despite some number of houses using electric heat, shouldn't the grid be able to take this more easily than the worst summer heat waves?
Those same fans run when using air conditioners.XXXVII said:Cassius said:XXXVII said:Cassius said:V8Aggie said:
I don't get it. I've lived in over 20 homes and they all had gas heaters. Am I missing something? I mean everyone's AC runs off electricity so even if half of us gave electric furnaces how are we going to put a dent in the grid?
Good point. Except for one house, it's always a gas furnace. I did have a heat pump in one house which was electric and a joke. Not getting this increase in demand.
I'm not sure my gas furnace will run without electricity. It needs electricity to run the thermostat and relay boards.
Yeah, but that doesn't explain a huge surge. It takes very little electricity to turn on the furnace.
The fans that move the hot air through your ducts do consume a good amount of power.
richardag said:Those same fans run when using air conditioners.XXXVII said:Cassius said:XXXVII said:Cassius said:V8Aggie said:
I don't get it. I've lived in over 20 homes and they all had gas heaters. Am I missing something? I mean everyone's AC runs off electricity so even if half of us gave electric furnaces how are we going to put a dent in the grid?
Good point. Except for one house, it's always a gas furnace. I did have a heat pump in one house which was electric and a joke. Not getting this increase in demand.
I'm not sure my gas furnace will run without electricity. It needs electricity to run the thermostat and relay boards.
Yeah, but that doesn't explain a huge surge. It takes very little electricity to turn on the furnace.
The fans that move the hot air through your ducts do consume a good amount of power.
Why don't they just command the windmills to spin faster in cold weather?AggDogg61 said:
Those wind turbines must be freezing up.
V8Aggie said:
Uhh the demand for heating or cooling is what uses 99% of the electrical requirement. Electric use for a board and running a fan require very little. You day drinking already or being intentionally dense?
lead said:
Many homes and apartment buildings have electric heat. And many folks rely on space heaters. It's always a large instantaneous load, but usually more intermittent. When the entire state goes this cold, you see it in the grid.
Good post. You sent yours while I was typingFenrir said:
Heat pumps can move somewhere between 1.5 to 3 times the amount of thermal energy as they consume. Electric resistance heaters are ~100% efficient so they produce the same amount of thermal energy that they consume. Heat pumps are far more efficient at moving heat, problem is they are all going to be frozen in this weather so heating will rely on gas or electric resistance heaters.
Something like 60-70% of homes in Texas are electric heat. Those homes are about to be running their electric heaters non-stop because the temperature difference would be like having 120-130 degree summers and they're combatting it with less efficient equipment.
The fan to move the air for both cooling and heating is the same and it takes electricity. The difference is cooling means the condensing unit outside is running as well, where heating with electricity takes power to heat the heating elements which consumes a lot of power. Which one is more, I don't know, but surmise that hearing elements take more energy than a cooling condensing unit.rynning said:
So does air conditioning use more power than gas heating or not? If so, despite some number of houses using electric heat, shouldn't the grid be able to take this more easily than the worst summer heat waves?
lead said:
Normal winter real time prices are $0-$20/MWH. Currently ~$1400. I think the max limit is around $10000. Deregulated markets keep consumer prices super low, but it's nuts during times like these when there is no incentive to build in baseline capacity.
http://www.ercot.com/content/cdr/html/20210214_real_time_spp
I was going to point this out but I don't know sh^t about electricity loads and whatnot. Pretty much everyone in Dallas has been running their pools 24/7 for 2 days already. No idea what kind of impact that would have.Burrus86 said:
A lot of pool pumps running right now, too. Trying to keep pool plumbing from freezing, too.
I don't know what's normal, but my pool installer set the pumps to run constantly starting at 35 degrees.YouBet said:I was going to point this out but I don't know sh^t about electricity loads and whatnot. Pretty much everyone in Dallas has been running their pools 24/7 for 2 days already. No idea what kind of impact that would have.Burrus86 said:
A lot of pool pumps running right now, too. Trying to keep pool plumbing from freezing, too.
V8Aggie said:
I don't get it. I've lived in over 20 homes and they all had gas heaters. Am I missing something? I mean everyone's AC runs off electricity so even if half of us gave electric furnaces how are we going to put a dent in the grid?
itsyourboypookie said:
People in Dallas are melting down on social media saying their power company text them about rolling blackouts.
Surely this is because of ice taking down trees that are taking down power lines and not because Texas can't meet energy demands.
If we truly can't meet the energy demands because of a cold snap, they better not shutter another coal plant and quit wasting acreage on solar.
I know mine's been running nonstop since Friday.Burrus86 said:
A lot of pool pumps running right now, too. Trying to keep pool plumbing from freezing, too.
I think that's exactly what's happening. Heat pumps don't work below a certain temperature (40 or so?), so the emergency heat strips cut on. Those are extremely inefficient.Cassius said:rynning said:
So does air conditioning use more power than gas heating or not? If so, despite some number of houses using electric heat, shouldn't the grid be able to take this more easily than the worst summer heat waves?
Yes. Compressors use a crap ton of electricity. Unless, like someone said, heat strips are being activated, a surge that could lead to blackouts doesn't make sense.
We have a whole home generator and it's not that much maintenance. Change the oil once a year and keep a good battery in it, and it's good to go. Some change the plugs every year as well, but I'll probably do that every 2-3 years. It has a run/maintenance cycle that happens once a week where it cranks up and runs for about 10 minutes. Haven't had to use it much, but our neighborhood did go about 15 hours without power over the summer due to limbs falling on lines and blowing several transformers down the line. Everyone else outside dying while we have the AC going...though I did turn off the upstairs and ran the downstairs. Luckily, the previous owners ate the cost of it.nortex97 said:
With the greeny crap now ascendant I am seriously looking at options this year for a backup generator for the house. A pain to maintain a full size one for years just in case but I think it is inevitable at this point that our power grid is going to become a lot less reliable moving forward.
Yeah...aTm2004 said:We have a whole home generator and it's not that much maintenance. Change the oil once a year and keep a good battery in it, and it's good to go. Some change the plugs every year as well, but I'll probably do that every 2-3 years. It has a run/maintenance cycle that happens once a week where it cranks up and runs for about 10 minutes. Haven't had to use it much, but our neighborhood did go about 15 hours without power over the summer due to limbs falling on lines and blowing several transformers down the line. Everyone else outside dying while we have the AC going...though I did turn off the upstairs and ran the downstairs. Luckily, the previous owners ate the cost of it.nortex97 said:
With the greeny crap now ascendant I am seriously looking at options this year for a backup generator for the house. A pain to maintain a full size one for years just in case but I think it is inevitable at this point that our power grid is going to become a lot less reliable moving forward.