Question by Michael: what is the cost of one Kilowatt-hour of coal and 6 different energies?
This is for an engineering project and this is all the information the teacher gave me, so sorry if it is missing stuff.
Answer by Ender
Should that be “cost *in* 6 different energies”? In terms of conservation of energy the kilowatt hour of electricity starts out as potential thermal energy in the coal. Then it’s burned as kinetic thermal energy, which is used to boil water which I guess would be chemical energy since it’s inducing a phase change. The steam is used to move a turbine with mechanical energy, the turbine moves magnets with elastic energy, and the magnets induce an electric current which is electromagnetic energy. That’s six.
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Question by ca_westley: Has anyone switched to Reliant Energy? How is the service & cost?
I am thinking of switching from TXU to Reliant due to outrageous bills. Wondering if it is worth it.
Answer by Vixxie
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Question by Wesley!!!: How much does a Nissan leaf and cost to Operate? And is it possible to get a level 2 charger for the car?
Im aware of the price But i cant find how much it will cost me on my electric bill to charge it. If I do get a Leaf i will get the Level 2 leaf.
I drive AT MOST 60 miles a day 6 days a week from home to work then to school.
I live in Texas and TXU is our energy provider
Answer by apeweek
The cost to drive a Leaf will depend on your local cost of electricity.
Nissan Leaf has an energy efficiency of 4 miles per kilowatt-hour. An average price for electricity in the USA is 11 cents per kilowatt-hour. However, most electric utilities offer a lower off-peak rate to electric car users when they charge their cars overnight. The overnight rate in my city is 6 cents per KWH.
6 cents divided by 4 miles equals a cost-per-mile of just 1.5 cents.
Compare this to the cost of gasoline. If gasoline costs about $ 4 per gallon, I could drive 266 miles for what you might otherwise spend on just one gallon of gas.
As you can see, the equivalent MPG above will vary a lot depending on the costs of electricity and gasoline. If you pay 12 cents per KWH of electricity, for example, your equivalent mileage is 133 MPG instead.
Or, if gasoline ever gets up to $ 5 per gallon, my cost-equivalent mileage becomes 333 MPG. (Note: the MPGe number you see on electric cars is used for comparing cars, but it doesn’t represent actual cost savings – those need to be calculated individually, as I have done here.)
Nissan has a level-2 charger, or you could shop for a different one – do a search on Amazon.com, for example.
What do you think? Answer below!