Question:
how do energy star appliances help improve energy efficiency at home?
anonymous
2011-11-17 07:56:42 UTC
how do energy star appliances help improve energy efficiency at home?
Four answers:
Ken M
2011-11-18 16:24:32 UTC
Essentially, the government has regulations as to how efficient appliances can be. Think of a car having to give a certain amount of miles per gallon before it could be sold. Or better yet, if you purchase a new home, there are standards that have to be met before the new owner can move in (things like electrical outlets have to be grounded, or the sewage system has to be up to code).



Well, the government makes sure that your coffee maker or washing machine save 20% energy compared to how they used to run in order to be qualified as Energy Star. So if you have a standard refrigerator that uses X amount of energy per day, the Energy Star qualified refrigerator has to use X minus 20% per day.



Another thing that you have to look at is the actual design of a product. If a refrigerator, for example, uses a smaller compressor but a little but more insulation to keep the same size refrigerator the same temperature, then they used less resources to even make the compressor to begin with, so it's more efficient.



I hope this answers your question.
Matthew B
2011-11-18 07:02:38 UTC
Choosing the most energy efficiency appliances at purchase will save on electricity, power costs, less appliance heat generation and associated cooling. Knowing your power consumption in real time including how much each appliance uses per hour can be useful for planning. Power point electricity meters can be bought for $30.



Secondary benefits include less CO2 production in electricity generation and less transmission losses. If electricity peak load use is stable then infrastructure upgrading costs are reduced. This helps keep electricity prices from increasing.
marycarol999
2011-11-17 16:57:08 UTC
most definitely they are built to use less energy...sometimes they are noisier like my 3 yr old fridge...apparently they don;t put as much insulation in them as they used to 40 years ago



They cost quite a bit more but the saving can add up and all energy efficient appliances usually have a energy saving rating (kilowatts per hour) and some appliances will even tell you how much you will save in $$ by purchasing this appliance.
deacon
2011-11-17 16:14:18 UTC
By using less energy, but digging deeper into your pocket to buy them.


This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.
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