I have an all-electric house, which was all the rage when I built it in the mid-70's. No natural gas up here, and propane is very expensive. In central and northern California, the monopoly for-profit utility is Pacific Gas and Electric (PG&E), except for a number of cities that have opted-out. Earlier this year PG&E eliminated a Time Of Use (TOU) Schedule (E-7) that had been quite advantageous to us solar owners.Their present most-advantageous (I'm told) schedule is E-6, convoluted by time-of-day varying hours (something they call Peak, Off-Peak, and Partial Peak), which is different weekdays and weekends, further convoluted by a Tier system based on kWh consumed or generated, and finally further convoluted by their being tied to pre-2006 Daylight Savings Time (I found that out the hard way).
Need a cheat-sheet to know when to do the laundry or charge the car or even turn on the hot water heater (it now needs more than the simple Intermatic mechanical timer).
What used to be a nice rate structure (less than 10¢/kWh Off-Peak) now ranges from an Off-Peak minimum of 15¢/kWh going up to 56¢/kWh if I use over 200% of their "baseline". The lowest rate for charging between 1pm and 7pm is 34¢/kWh. Add to that, they doubled the monthly connection fee which they call a "Minimum Delivery Charge" to 33¢/day. Oh, and this 'advantageous' TOU E-6 schedule is closed to new users. I haven't dared look at the alternatives...
Here's PG&E's current Schedule E-6:http://www.pge.com/tariffs/tm2/pdf/ELEC_SCHEDS_E-6.pdf
With solar, the charges are accumulated over the course of a year. At their annual "True-Up" time, if I owe them money I write them a check; if they owe me money, they zero it out. For me, over the last ten years they have zeroed out about $3,000.
Even though I have managed to beat them (sometimes barely) and not had an annual electric bill for over ten years due to my ground-mounted and rooftop solar (now around 11kW ac), this latest rate structure I'm afraid is going to screw me. I'm slowly working on my trailer-mounted solar-powered massive battery-pack 'PowerWall', into which I also hope to eventually incorporate all the electric cars I have lying around here. I'll spend any amount of money not to have a utility bill.
This is still good - businesses that are subjected to a E-19 Demand Rate schedule can pay a peak $18.74/kWh
. You read that right - it is dollars
and not cents
! I wonder if Tesla's SuperChargers are being hit by this?