drees wrote: smkettner wrote:
Boomer23 wrote:..... and new system owners will have no choice but to go on time of use rate plans.
Nothing could be better than TOU for solar & EV.
You haven't seen the proposed TOU plans yet.
See what I posted the other day that SDG&E is proposing for TOU time periods
The short version is that peak rates will be 4pm-9pm year round. There is not much sun left in that time of day. In the winter, it's a tiny fraction. In the summer, it's maybe 15-25%.
Ouch, this would hurt me. Tree shade shuts most of my array down by 4 pm most of the year, and in the summer I am often still running the A/C at 9pm. Presently SCE weekday on-peak runs 2pm to 8pm, but SCE could decide to copy SD&G any time. Thanks for cross post.
Like Boomer23, I am grateful that CPUC voted as they did, and I am also surprised that the vote was so close. If the nationwide attack on Net Metering can force this close a vote in California, it indicates the utility mindset is getting a lot of traction. The utilities' sharp comments after the vote suggest they are quite upset and are not going to give up.
My Jan bill is the end of my true-up period. My binge on A/C last Aug and Sept, when I was having sleep problems, dug me a hole that I was not quite able to climb out of. For the first time I actually owe a net $6.98
for the 12 months, but considering I imported a net total of 4,951 kWh more than I produced for the year, that is still a pretty good deal, $.0014/kWh, 1/7 of a cent. A very good TOU profit.
My January bill also reports a change in SCE Winter TOU rates effective Jan 1, 2016.
xxxxxx Del Gen Total
xOnPk .14 .14 .28
xOffPk .14 .14 .28
SOffPk .08 .04 .12
Note that the OnPk and OffPk total rates are virtually the same for the 8 months of EV winter. Therefor the time that OnPk starts and stops matters only in the Summer, but that is where the action is with higher prices for On Peak.
OnPk Delivery went up from .11 to .14, OnPk Gen went down from .24 to .14.
I suggest we could argue that the higher delivery price shows that they are assigning more value to our distributed power. If our power goes at most through only our local neighborhood transformer before it finds a net consumer, the cost of using that very small fraction of the grid should be a small fraction of the total distribution value back to the big generators. Unfortunately I don't know what are the relative costs of the local vs total grid infrastructure.
In HI, the much higher solar penetration often results in reverse power flow for the full 100 plus house circuit and through the larger substation transformer supplying your circuit. At that point the costs of distributing your solar generation have gone up, but I don't know how much.