Posts: 771
Joined: Sat Jul 17, 2010 10:10 am
Delivery Date: 01 Apr 2011
Location: Berkeley, CA

PG&E E-9A expiring: switch to E-6 or EV-A?

Thu Oct 23, 2014 11:20 am


I've had a Leaf and solar for the last 2.5 years, and I have been happy on PG&E rate E-9A. But that rate is being retired at the end of the year, so I need to decide whether to switch to E-6 or EV-A. Unfortunately the PG&E online rate comparison tool does not work on my account, it says "the My Rates tool is not available for your rate". So has anyone done any analysis to figure out under which conditions one plan is better than the other? Details of my situation follow.

I have a 2.4 kW-AC system which according to Enphase generated 4.2 MWh during my last PG&E true-up period, June 2013 - May 2014. My net PG&E usage during that time period was 1.6 MWh, for a total usage of 5.8 MWh. The Leaf gets driven about 10,000 miles/year at maybe 3.9 miles/kWh, so I figure half of the usage is attributable to charging the Leaf at night. Under E-9A I end up with a net energy credit of about $45 at the latest true-up, but of course that was lost as I am still a net energy consumer.

To complicate matters a little, I am about to switch from a gas furnace and single window A/C to a 1-ton ducted mini-split heat pump for space heating and cooling. So my electric usage is going to go up, but under E-6 I should qualify for the higher electric heat baseline amounts: 8.3/14.9 summer/winter kWh/day versus my current 7.0/8.5 . EV-A is untiered, so baseline is immaterial for it.

Any guidance would be appreciated. My initial bias is to switch to E-6, as it is more similar to the E-9A I am used to. Ultimately I may have to estimate my increased HVAC electric usage and write a spreadsheet to get a good answer, but I am hoping to avoid having to do that. Or I may just switch to E-6 and revisit the issue in a year once I have some real data.


Posts: 339
Joined: Wed Apr 27, 2011 9:01 am
Delivery Date: 19 May 2011
Leaf Number: 2441
Location: Oakland, CA

Re: PG&E E-9A expiring: switch to E-6 or EV-A?

Thu Oct 23, 2014 2:45 pm

I'm in a similar situation, but I don't have a good answer either. I don't know whether E-6 will continue to be tiered after this year. Tiers are good if you have solar. Although the E-9 rate is supposed to terminate at the end of the year, PG&E has failed to provide me with any notice that I will have to choose another rate. I'm counting on PG&E's incompetence to keep me on E-9 for a while. Have you received notice from PG&E that you will have to switch?
Cayenne Red SL-e
Blink Installed 6/23/11

Posts: 152
Joined: Fri Jun 27, 2014 12:20 pm

Re: PG&E E-9A expiring: switch to E-6 or EV-A?

Thu Oct 23, 2014 4:20 pm

One resource you might want to consider is the iPhone app called, "My PG&E Toolkit" by Ndili Technologies. There is a "Lite" version ($0.99) you can use for 14 day trial before you upgrade to the unlocked version. Although, I believe the latter is currently on sale for a one-time fee of $9.99, which is CONSIDERABLY cheaper than getting on an in-app subscription payment plan. This app has all the relevant PG&E rate plans in its database, and by allowing it to access your online PG&E account, it can calculate how much you would pay for each different rate plan including the new EV-A or B vs. the outgoing E-9A or B.

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