linkim said:
I attended the dedication for the QC at Stanford Shopping Center in Palo Alto yesterday (5/15). The number mentioned is the QC is used about 3-4 times/day. This is the only point-of-reference I have heard for commercial QC use, but the numbers could be much different for the VW QC in Belmont and Mitsubishi QC in Cypress, but they offer free charge so far.
I think 100-150 charges per month would be a good number to work with for a really good location. My understanding is that Palo Alto is unique because it has its own utility that does not charge a demand fee. This is NOT the norm in California.
So, 125 uses per month times the minimum $7 fee equals $875 in gross revenue. I'll guess that folks are "getting their money's worth" and sucking up 20kWh per charge (18kWh into the battery at 90%), which means $2 in electricity per charge at 10 cents per kWh, $250 for the month total.
That leaves $625 to pay for insurance, maintenance, depreciation, and payment to the host for their "free" parking spot. Oh, almost forgot that little cost to pay for the DC charger and installation, permits, and fees. Good thing they don't have a $1500 demand fee !!!
And, of course, employees, shareholders, advertisers, etc don't need to be paid.