V is electric potential or voltage in volts. Electricity generation is often done with electric generators, but can also be supplied by chemical sources such as electric batteries or by other means from a wide variety of sources of energy. Electric power is generally supplied to businesses and homes by the electric power industry.
Depending on where you adopt, fees can range up to $400. Purchasing a Great Dane from a breeder can cost between $600 and $3,000, depending on the breeder and the dog itself. The higher price tag usually comes with a show-quality dog, which you might not need if you're just in the market for a pet.
Teacup dogs, especially puppies, are very much in demand. They are also relatively expensive compared to the standard breed of Yorkshire Terriers. At the upper end of the scale you will often see tiny Yorkies selling for as much as $2000 in the USA and over Â£1000 in the UK and in some cases even more.