nwdiver
Well-Known Member
When we were an integrated utility (Generation -> meter) we designed rates to cover our costs with a little return for investors.
We designed a TOU rate for residential customers that was revenue neutral. That means that if we put every residential customer on that rate, we would receive the same annual revenue. If customers changed their usage habits so their bills went down, our costs would also decrease. It was not popular because people were afraid that they would pay more and there was not enough perceived value (incentive) to get them to change their usage habits. Until utilities get really expensive AND customers realize that they can save a lot of money (like with cell phones where many now bring their own phone to the plan instead of getting a 'free' phone every 2 years) I don't think things will change.I think deregulation has made it more difficult to support TOU because the costs are separated into generation and transmission/distribution.
I agree any TOU success needs to involve automatic system. Like scheduled charging in an EV. If I use ~20% of my battery for my daily commute the ~60%+ I have left when I get home is still enough to run errands and I'm not going to care if the car starts charging at 8pm or 2am so long as I'm back to 80% by 6am.
There are some enterprising companies in Texas like Griddy that find ways to pass TOU savings on to their customers. I think that aggregation will actually make things better. If a regulated utility owns (Generation => meter) there's a perverse incentive to make the case for more infrastructure. Additional expense is good because the regulated utility gets 10% of the $400M line upgrade...
First you have to increase capacity and transmission facilities to accommodate them.
??? For 2kW? Pretty sure the grid can handle a bunch of cars charging at 2kW.
It's distributed 'peaking power'. Here's a 30MW demo CAISO and EmotorWerks are working on.