Duke Energy also charges non-manufacturing commercial facilities a demand rate of $3.19 per month for every kW of peak demand (beyond the first 30 kW of peak demand) that the facility places on the grid. This is independent of the rate charged for the kWh actually delivered.
If we accept Apple's figures that their facility will draw approximately 20 MW at peak capacity (this value will vary somewhat over the course of a day), then with conventional electrical service they would be paying $63704.30 per month just for the service demand -- before they even start paying the per-kWh rate.
Ignorant.
The number of hours in a month = 24 * 30 = 720.
For simplicity, assume that data center uses a constant amount of electricity throughout the day.
($3.19 kW / mo ) / 720 hours per month = approximate added cost of $0.005 per kWh in addition to the normal fee per kWh.
Of course, the data center doesn't use exactly the same amount of power throughout the day, but ballpark figure, this cost is completely trivial. The electricity cost in North Carolina is on the order of $0.08 per kWh, so even including this fee you are talking about, the cost is on the order of $0.08 to $0.09 per kWh.
Even if Apple's data center uses all of its electricity in only 4 hours out of the day, resulting in high peak demand and comparatively high fee, the fee you are talking about still only adds $0.027 per kWh to the base per kWh cost.
Do the math. Someone just posted here about their data center consuming $1 million per month in electricity. Is that data center as large as Apple's? Probably not. Your $63,000 / mo is a trivial amount in comparison to the per kWh cost, and also trivial in relation to the cost of installing several megawatts of solar power.
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