Electric out

phreddyp

Well-Known Member
Perfect scenario. Probably wouldn't work in several days of very dark in a row, but would have got him through a day or two until some minimal sun or the power comes back on. He didn't buy it to go off-grid, just to even out their frequent several hour power outages. They have buried power lines too so I don't know why his power goes out all the time.
Your cousin is blowing smoke up your butt, math don't work
 

LightRoasted

If I may ...
If I may ...

Would have it worked yesterday with the very dark day and several inches of snow?

In MD I heard you are not allowed to be off the grid.
It's fairly easy to do ... just stop paying your electric bill. Then poof, your meter is removed and no grid power.
 

GURPS

INGSOC
PREMO Member
By off grid I mean if the power is out the solar can't power your house because they were worried it might feed back into the grid and be a safety hazard. I don't know if that's still the case or if they allow it with some sort of automatic safety switch.


An automatic disconnect is required IIRC
 

OldHillcrestGuy

Well-Known Member
Well its 2 days after the big one. Ive been in Charlotte Hall for 44yrs., SMECO has always been great only time we have been out for any length of time in any storm related disruptions was the several years back when the tropical storm hit (out 2 days I think) and many years ago when we had several ice storms. Well this time we didn't dodge the bullet, power went out just about 10:45am Monday and didnot come on till about 1020pm about 11 1/2 hours. Snow total was 12 inches in area of Oaks rd. Kept putting off getting the generator started cause I knew SMECO would come through for me. Have a sump pump in the house with battery backup but battery backup didn't appear to be working so had to haul out the little tailgater one I have and it didn't wont to start, so off to the big generator that hadn't been started in 5-7yrs and has never been used since we bought years ago. Had some gas and it started on first pull. With the help of my 2 sons we got the pump hooked up and one son came over with kerosene for my kerosene heater and we were good go to, after they left at 9pm. the power comes back on less then 2hrs.
 

Grumpy

Well-Known Member
...and we were good go to, after they left at 9pm. the power comes back on less then 2hrs.
:lol: thats the way it always works, I can think of 3 times when I have pulled out the genny, strung all the extension cords only to have the power back within an hour.
 

Clem72

Well-Known Member
Your cousin is blowing smoke up your butt, math don't work
Yeah, let me trust your uninformed opinion instead of my own knowledge and 30 years experience as a EE.

Just to add, for quick math. With a heatpump your winter months are likely to be your most expensive and google tells me our winters are very comparable in temperature with my cousins. My current electric bill has me at 1250kWh for a 30 year old 3500sqft house with lots of electric appliances and a 12 year old 13 SEER 5-6 HSPF (heating efficiency) heatpump.

Given a new construction single level house of less than half the size and a more modern heatpump it seems reasonable that his requirements should be less than half? Let's call it 600kWh. Which gives us 20kWh per day. The Tesla Power Wall has 13.5kWh usable storage per cell, so two cells is 27kWh. Google says a 4kW solar system will produce 18-22kwH in New Mexico, and even on cloudy and rainy days should produce 10-25% of optimal. So that puts us around 30kWh.

So even without figuring in differences in energy efficiency of the home or the heatpump and using the numbers from my poor efficiency house that get's us to a day and a half. Pretty damn close to my "one to two day" estimate.
 

phreddyp

Well-Known Member
Oh revered one ! Please explain the math you have used to come to this conclusion explaining the KWH's for the item's powered in this 1500 square foot home . You know heat and A/C loads , refrigeration , dishwasher , clothes washer , clothes dryer , water heater and the like . Then explain the replenishment of your 26 kwh battery back up with a 4 KWH solar array rated on ideal conditions . I'll wait !
 

Clem72

Well-Known Member
Oh revered one ! Please explain the math you have used to come to this conclusion explaining the KWH's for the item's powered in this 1500 square foot home . You know heat and A/C loads , refrigeration , dishwasher , clothes washer , clothes dryer , water heater and the like . Then explain the replenishment of your 26 kwh battery back up with a 4 KWH solar array rated on ideal conditions . I'll wait !

Too slow bucko, and I even limited it to small words for you. And while maybe not the case for you (since you listed them), most people would be intelligent enough to limit the use of electric clothes dryer and dishwasher during a power outage.
 

phreddyp

Well-Known Member
Just to add, for quick math. With a heatpump your winter months are likely to be your most expensive and google tells me our winters are very comparable in temperature with my cousins. My current electric bill has me at 1250kWh for a 30 year old 3500sqft house with lots of electric appliances and a 12 year old 13 SEER 5-6 HSPF (heating efficiency) heatpump.

Given a new construction single level house of less than half the size and a more modern heatpump it seems reasonable that his requirements should be less than half? Let's call it 600kWh. Which gives us 20kWh per day. The Tesla Power Wall has 13.5kWh usable storage per cell, so two cells is 27kWh. Google says a 4kW solar system will produce 18-22kwH in New Mexico, and even on cloudy and rainy days should produce 10-25% of optimal. So that puts us around 30kWh.

So even without figuring in differences in energy efficiency of the home or the heatpump and using the numbers from my poor efficiency house that get's us to a day and a half. Pretty damn close to my "one to two day" estimate.
So you are trying to say that you can run this 1500 square foot home can run on 600 kwh per month then you are trying to say that you can run YOUR house on 1250 KWH for a month ( not on the best month you ever had ) quit trying to kid me and yourself !

I'd like to hear from other members in this group and hear what their monthly KWH usage is ( it's right on the back of your SMECO bill at the top ) and the approx square footage of your house .

I live in a 2500 square foot house with oil heat and oil water heating 2x6 walls, foam insulation and Anderson windows and my usage is around 1300 kwh per month . Like I said YOUR math don't work .

Yes bucko now you are changing the narrative saying he doesn't use everything I'll say it again (YOUR math don't work )
 

PeoplesElbow

Well-Known Member
Just to add, for quick math. With a heatpump your winter months are likely to be your most expensive and google tells me our winters are very comparable in temperature with my cousins. My current electric bill has me at 1250kWh for a 30 year old 3500sqft house with lots of electric appliances and a 12 year old 13 SEER 5-6 HSPF (heating efficiency) heatpump.

Given a new construction single level house of less than half the size and a more modern heatpump it seems reasonable that his requirements should be less than half? Let's call it 600kWh. Which gives us 20kWh per day. The Tesla Power Wall has 13.5kWh usable storage per cell, so two cells is 27kWh. Google says a 4kW solar system will produce 18-22kwH in New Mexico, and even on cloudy and rainy days should produce 10-25% of optimal. So that puts us around 30kWh.

So even without figuring in differences in energy efficiency of the home or the heatpump and using the numbers from my poor efficiency house that get's us to a day and a half. Pretty damn close to my "one to two day" estimate.
Water heater and refrigerator are the other big users. I don't think I would run the dishwasher or do laundry in a power outage so I'd not bother with those.
 

Clem72

Well-Known Member
Water heater and refrigerator are the other big users. I don't think I would run the dishwasher or do laundry in a power outage so I'd not bother with those.

I figured using my normal household usage as an example would cover all the basis because we have electric everything, 3 levels with tons of windows. Yeah, if the power were out and I was running on battery I would probably turn my thermostat down a couple degrees, limit use of hot water and non-essential appliances.
 

Clem72

Well-Known Member
So you are trying to say that you can run this 1500 square foot home can run on 600 kwh per month then you are trying to say that you can run YOUR house on 1250 KWH for a month ( not on the best month you ever had ) quit trying to kid me and yourself !

I'd like to hear from other members in this group and hear what their monthly KWH usage is ( it's right on the back of your SMECO bill at the top ) and the approx square footage of your house .

I live in a 2500 square foot house with oil heat and oil water heating 2x6 walls, foam insulation and Anderson windows and my usage is around 1300 kwh per month . Like I said YOUR math don't work .

Yes bucko now you are changing the narrative saying he doesn't use everything I'll say it again (YOUR math don't work )

Yeah, keep twisting as much as possible to try and justify not knowing your head from your arse while mansplaning how my guestimate (which looks to be spot on) was wrong and my cousin must be a liar.

There's enough engineers here to vet the numbers themselves, you don't need to keep making yourself look like a fool.
 

Sneakers

Just sneakin' around....
When you're in backup mode, you're not going to use the same KWH as you do when all is well and the sun is shining. Knowing you have limited battery power, you pare back your usage significantly. No washer/dryer. No A/C. Turn of the elect water heater, no showers. Having enough battery to power your home as though nothing is amiss would cost an absurd amount of money.
 

Clem72

Well-Known Member
So you are trying to say that you can run this 1500 square foot home can run on 600 kwh per month then you are trying to say that you can run YOUR house on 1250 KWH for a month ( not on the best month you ever had ) quit trying to kid me and yourself !

  • Residential electricity consumption in New Mexico averages 656 kWh/month, which ranks 42nd in the U.S.
  • Average size of a home in New Mexico is 1,838 sqft
(1500sqft/1838sqft) * 656kWh = 535kWh

Looks like I was being overly conservative with my numbers. Probably a full two days easy.
 

phreddyp

Well-Known Member
Yeah, keep twisting as much as possible to try and justify not knowing your head from your arse while mansplaning how my guestimate (which looks to be spot on) was wrong and my cousin must be a liar.

There's enough engineers here to vet the numbers themselves, you don't need to keep making yourself look like a fool.
Nothing here to twist you said he could run his household oh solar and battery back up. Which means runs normally . I knew from the get go this was wrong . I've installed generators and UPS systems in my 49 year career as an electrician and contractor hardly anyone puts in enough back up to run normally.

You changed your narrative when called out! Sorry Clem try again . Keep trying to cover up .
 
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