RV Fuel Issues & Prices - Post 'Em Here!
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Forum Discussion
Where to start?
"With lower night rates when do you think most charging will take place?"
The accumulated demand is huge. You assume that we get the energy to propel all of these vehicles and no increase in generation or transmission is required. Fantasy. Low rates at night are for low usage at night. Night demand even using your rates / demand become day demand real quick for 1300 additional KW per month. Wait until everyone plugs in at night needing a recharge. Six miles per KWH at what speed; 20 MPH? Your not moving a 3000 anything at 60 MPH for .55 of a horse power (2.5 KW / 6 x 1.34). A horse power is a horse power regardless of prime mover.
"If transmission losses are so bad why not have small gasoline generators individually at each home?"
A utility makes electricity at 35% thermal efficiency (BTUs in fuel to mechanical energy). The is accomplished by using all of the BTUs possible. A small gasoline engine is about 10% efficient due to the losses in heat. Gasoline is also a very expensive fuel at 300 BTUs per penny while Natural Gas is about 1500 BTUs per penny.
"With lower night rates when do you think most charging will take place?"
The accumulated demand is huge. You assume that we get the energy to propel all of these vehicles and no increase in generation or transmission is required. Fantasy. Low rates at night are for low usage at night. Night demand even using your rates / demand become day demand real quick for 1300 additional KW per month. Wait until everyone plugs in at night needing a recharge. Six miles per KWH at what speed; 20 MPH? Your not moving a 3000 anything at 60 MPH for .55 of a horse power (2.5 KW / 6 x 1.34). A horse power is a horse power regardless of prime mover.
"If transmission losses are so bad why not have small gasoline generators individually at each home?"
A utility makes electricity at 35% thermal efficiency (BTUs in fuel to mechanical energy). The is accomplished by using all of the BTUs possible. A small gasoline engine is about 10% efficient due to the losses in heat. Gasoline is also a very expensive fuel at 300 BTUs per penny while Natural Gas is about 1500 BTUs per penny.
