Estimate of domestic electricity consumption

[SEB2502]

Hello everyone,

As part of my project (see the eco-construction section) I want to know how much a standard house consumes, with normal electrical equipment (TV, DVD, washing machine ...)

I would like to have your opinions and your personal experiences costed.

Funny questions you might say to me, but I'm trying to find out how many photovoltaic panels it takes to cover the needs of a "traditional" house.

I live in an apartment (42m2 studio) with stereo, DVD, PC TV, fridge (with integrated freezer), microwave, oven and cast iron hob (I did not choose, I am a tenant) without washing machine and I use 800kw per year. It is therefore difficult for me to estimate the consumption for a house, what is it for your houses?

Could you help me! To your electricity bills lol ...

Have a good day

SEB

[Christophe]

There are several products that exist to measure or estimate household electrical consumption:

1) Power meters on socket:



- https://www.econologie.com/shop/prise-el ... p-238.html

+ 2 older, more manufactured products:
- https://www.econologie.com/shop/wattmetr ... -p-20.html
- https://www.econologie.com/shop/compteur ... p-299.html

2) Global consumption "sensors" (connected to the general meter):



USB model: https://www.econologie.com/shop/ecowatt- ... p-319.html
Simpler model: https://www.econologie.com/shop/ecowatt- ... p-335.html

And a new type of wattmeter: between the ecowatt and the plug-in econometer: consumption monitoring and forecasting by La Crosse Technology.

https://www.econologie.com/shop/wattmetr ... p-380.html



Supplied with 2 sockets, possibility of adding up to 5: https://www.econologie.com/shop/wattmetr ... p-381.html

Do not hesitate to make a https://www.econologie.com/forums/search.php

[Rulian]

Do not forget that before putting on solar panels, you must organize a kWh hunt to eliminate all unnecessary consumption (watches, lights, superfluous devices ...).

You will see that with a few efforts, we can already gain a lot on consumption.

[elephant]

in my opinion, one of the biggest difficulties is to manage the spikes:
a washing machine at a speed of 1 KW and a peak of 2,5 kW,
a stove plate goes from 0 to 1500 watts if it is thermostatically controlled
some devices can be mounted on a load shedding relay, for example a dryer or washing machine, to give priority to the computer or fridge

a 150 liter water heater absorbs 9 to 10 kW per night, but I will be told that we can make thermal solar and I will agree, the yield per m2 is higher

I’m not hiding from you that I think electric solar is not currently profitable, except for mobile or remote applications (parking meters, weather stations, telecom repeaters) or places lost in high mountains

[soljeni]

Hi Seb,

The average consumption of a family of 4 in France is 6 kWh per year (or 500 per day).
Source: RTE
Reference year: 2003

[elephant]

which doesn't mean much:

pcq is an average between people who have all electric and those who have gas water heater, oil boiler, gas stove

[the middle]

I dig up this subject because of Citro:
He informed a site (house facile)
And there I found an indicator for an electromechanical counter.
(90 amp 220V)
I find this very interesting:
We are not immune to a loss of current, a resistance that eats too much.
The problem with the official electric meter is that there is no instant indication of the overall electricity consumption of the house (just a wheel that turns + - fast)
One day, I even saw (I don't know where), a pc program, which detects the start of an electrical appliance, this program identifies all the electrical energy eaters in the house.
And this program needs an electronic indicator to work ...
maison-facile.com/boutique/bt_02.asp?num=3226&b=388

[I Citro]

I dig up this subject because of Citro:
He informed a site (house facile)
And there I found an indicator for an electromechanical counter.
(90 amp 220V)
I find this very interesting:
We are not immune to a loss of current, a resistance that eats too much.
The problem with the official electric meter is that there is no instant indication of the overall electricity consumption of the house (just a wheel that turns + - fast)
One day, I even saw (I don't know where), a pc program, which detects the start of an electrical appliance, this program identifies all the electrical energy eaters in the house.
And this program needs an electronic indicator to work ...
maison-facile.com/boutique/bt_02.asp?num=3226&b=388

Well, I don't find it interesting, but then, NOT AT ALL.

All current electronic counters give instantaneous consumption and on old Baner wheel counters it is enough to time the time taken for a lap and make the rule of 3.

I just took my phone, Chrono mode: one lap in 35.1 seconds. at 2.5 kWh / rev this gives:
2.5 / 35.1 x 3600 (number of seconds in 1 hour) = 256.41 W of instantaneous consumption. This seems to correspond to the consumption of the PC and various watches.

For the site, I did not know it, I linked it because it is the first one I found whose photo corresponded to my product. For the rest, they are expensive.
For specific measurements, I have a PM230 coming directly from my favorite site.

[the middle]

Heuuu, I don't want to time myself ..
But then not at all. I'm a big bastard. (For that)
My counter makes 600 revolutions per kwh
But no, no, no beurrrrkkk the lap times
Otherwise, I have a kind of pm230 at home, but not powerful enough for the whole hut.

[I Citro]

Hello everyone,

As part of my project (see the eco-construction section) I want to know how much a standard house consumes, with normal electrical equipment (TV, DVD, washing machine ...)

I would like to have your opinions and your personal experiences costed.

Funny questions you might say to me, but I'm trying to find out how many photovoltaic panels it takes to cover the needs of a "traditional" house.

I live in a pavilion (F6 of 115m2) with, DVD, TV PC, separate fridge + freezer, microwave, oven (gas hob), washing machine, dryer (as little as possible, but sometimes it helps out ). Hot water and central heating with city gas (gas: 15000 kwh / year).

I use 3600 kwh of electricity per year. (3900kwh in 2007, 3200kwh in 2002).

The 1976 house in brick with brick interior lining with air space, ceiling insulation with 45mm of glass wool + 45mm added across but tightly packed. Wood joinery and single glazing, no vmc ...
The living room is south facing with more than 6 linear meters of French windows which represents a significant passive solar gain (in summer, I leave the shutters to the south closed, another French window opens to the north).

This gives an electrical consumption of 32 kWh / m² / year
and a gas consumption of 130 kwh / m² / year
or a total consumption of 162 kwh / m² / year
This seems reasonable given the age and the materials used.
Today, many new homes are no better.