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Old 08-09-2019, 05:05 PM
 
Location: Homeless wanderer
1,404 posts, read 491,175 times
Reputation: 1995

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Quote:
Originally Posted by Northman83 View Post
Depends..

In our new house, built in 2018, we have electric heating cables in all floors. Cast into the concrete slab, with oak floor on top.
However we have 10" wall full of insulation and 15" insulation in the roof and 30" in the floor under the concrete slab. Triple glassed windows. Single story house.

So, we just need a small amount of heat in the floors to keep everything snug. I usually walk around in shorts and no socks all year long. And we have large Soapstone fireplace in the living room.. mostly just for the cozy atmosphere in winter.

And all new houses has to have ventilation system with heat pumps in them. Warming up new air coming into house.


Other popular choices are
Air to Air heat pump.
Water to water heat pump.
Air to water heat pump
Electric mats under floor.


So.. most houses use Electricity to heat the houses. And nearly all houses have a fireplace as a back up. Heating oil is not allowed any more. Then Air to Air heating pump is the most popular because its cheap and high efficiency.
Water to Water heat pumps are most desired though... but we would never recuperate the costs in our house.



.
I was an HVAC technician/installer for years. Heat pump efficiency, even with modern units, reaches a null efficiency ratio factor at 15-23 degrees Fahrenheit. What is average winter temps were you live in Norway?
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Old 08-09-2019, 05:13 PM
 
1,182 posts, read 222,387 times
Reputation: 796
Quote:
Originally Posted by snebarekim View Post
I was an HVAC technician/installer for years. Heat pump efficiency, even with modern units, reaches a null efficiency ratio factor at 15-23 degrees Fahrenheit. What is average winter temps were you live in Norway?
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Old 08-09-2019, 05:22 PM
 
477 posts, read 98,386 times
Reputation: 592
Quote:
Originally Posted by TaipeiTaiwan View Post
Hauling 40,000 LBS using electric vehicle is very difficult and makes no common sense.
I rather like the idea. Do you object to the battery pack size that is needed currently? Obviously a diesel-electric (or pure electric via wired power) train appears to work.

For a reasonably short circular route (local delivery, etc.) it would seem just the thing.

a not-terrible article.

https://insideevs.com/news/332353/te...ry-is-how-big/
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Old 08-09-2019, 05:29 PM
 
1,182 posts, read 222,387 times
Reputation: 796
Tesla Semi has a range of 3-500miles.

70-80% of all trucking is inside this range..



https://insideevs.com/news/347652/te...ig-load-video/
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Old 08-09-2019, 05:34 PM
 
477 posts, read 98,386 times
Reputation: 592
Quote:
Originally Posted by Northman83 View Post
Tesla Semi has a range of 3-500miles.

70-80% of all trucking is inside this range..



https://insideevs.com/news/347652/te...ig-load-video/
Given that the trucking industry is (mostly) run from spreadsheets instead of from emotional purchases, I'll expect a wholesale change to EV trucks the minute it makes financial sense. I suppose that the jury is still out on the long-term cost of maintenance.

They do last some time so it'll take a while to see an entire fleet change.

Is there any plan for Norwegian owners of collector cars?
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Old 08-09-2019, 05:39 PM
 
Location: Homeless wanderer
1,404 posts, read 491,175 times
Reputation: 1995

So it tends to stay above 0 Celsius, even mid winter? That isnt bad at all. I grew up in Minnesota, where negative 30 F wasnt all that uncommon.

I just figured Norway to be really frigid.


Can I come visit?
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Old 08-09-2019, 05:47 PM
 
Location: West Coast of Europe
21,875 posts, read 19,495,510 times
Reputation: 8645
Quote:
Originally Posted by Delahanty View Post
Ban, ban, ban. Coming again from the left. Because that's where it always comes from.
Someone has to guide development. Most humans are egoistic and hate to change, unless they are forced to.
I am happy cars without catalytic converter were banned, and fridges with CFC's. We should all be grateful, and people would not have changed if there had been no bans.
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Old 08-09-2019, 05:56 PM
 
477 posts, read 98,386 times
Reputation: 592
Quote:
Originally Posted by TaipeiTaiwan View Post
Article says Tesla Truck need 1200 kwh battery pack for 600 mile range. (1)
Tesla Model S battery of 85 kwh is about 1200 lbs. (2)

Such we use standard Tesla S battery to see how heavy Semi Tesla battery is.

(Semi Battery) 1200 kwh / 85 kwh capacity (Tesla S battery) = 14.11 (Amount of Battery needed)

14.11 (Amount of Battery needed) * 1200 lbs = 16,941 LBS.
Battery Weight

Too Heavy Battery! Cut down intermodal container capacity.


Works Cited

(1) https://insideevs.com/news/332353/te...ry-is-how-big/
(2) https://en.wikipedia.org/wiki/Tesla_Model_S#Battery
Another article.

https://www.teslarati.com/how-much-t...ry-pack-weigh/

It seems to me that it boils down to the combined economics of fuel savings and maintenance (plus the additional labor for moving a given amount of freight).
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Old 08-09-2019, 06:10 PM
 
1,182 posts, read 222,387 times
Reputation: 796
Quote:
Originally Posted by snebarekim View Post
So it tends to stay above 0 Celsius, even mid winter? That isnt bad at all. I grew up in Minnesota, where negative 30 F wasnt all that uncommon.

I just figured Norway to be really frigid.


Can I come visit?




On the Summer one.. it does not show as well, but at the West coast its +14-16 or more.


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Old 08-09-2019, 06:35 PM
Status: "NEVER try to ride the angriest bull in the pen." (set 13 days ago)
 
Location: Dallas, TX
4,136 posts, read 2,161,828 times
Reputation: 3876
Quote:
Originally Posted by travis t View Post
https://www.independent.co.uk/enviro...-a7065616.html

Norway is increasingly seen as the envy of the world. It is FIRST place in the world happiness index. It is #5 in median income (U.S. is behind at #8). It has a debt-to-GDP ratio of -90.5 percent. In other words it has a national surplus, not a national debt.

Norway has obviously made a lot of good decisions. Now they are making another good decision by banning the sale of fossil-fuel-powered vehicles by 2025. Not the 2030 plan of Gov. Jay Inslee, which was seen as way too ambitious and radical but 2025.

Can someone please explain to me why we are not following Norway's lead????
Because too many people think Norway is KHAM'nist, or at least socialist (which in some people's minds amounts to the same thing).
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