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great suggestions, thank you. I will definitely look into a CCA. And switching from gas to electric has been on my mind recently. Probably will do that when we remodel.

It would be useful for you to provide more detail with your calculations. The PW spec indicates 13 useful kWh. And that goes down to 70% per the warranty. So let's assume that the average energy pulled out of the battery is 0.5*(13 + 0.7*13)=11kWh. Daily cycling of average 11 kWh is 37000/11...

I too have read it several times and wonder how many people read it incorrectly. It is unfortunate. Context is everything. Most people never read their warranties. Anyone doing an ROI should. I agree that the PW table makes you think there is no throughput limit, but why don't you check the...

Hi @wwu123, my goal was to understand whether I made a huge mistake of installing solar recently, coupled later with some family members deciding to live elsewhere, and realizing then that I would have a relatively huge net surplus of energy at true-up time (and being paranoid about PGE). As I...

No battery manufacturer will give you unlimited cycles, despite how you interpret it. That is the reason for total aggregate energy throughput spec. Look at any competing battery and see if they offer unlimited cycles. Pure fantasy. Backup mode means infrequent utilization (cycles) to plow...

although not PGE, a good datapoint, thank you @RichardCullip

hi, no I don't believe that I said it excluded time-shifting; if I did somewhere then I was wrong. The true measures of a rechargable battery are retention over time and total energy throughput, with the latter usually more important. Total energy throughput refers to how many times you can...

@jjrandorin I looked at the PowerWall2 warranty. What you say is true, but only for backup purposes where # of cycles is small (thus unlimited). I've learned that battery warranties typically have additional fineprint for cycle/day time-shifting purposes that limits total aggregate energy...

@h2ofun, I am curious about 30kW installations. Could you guesstimate the reasons for installations of 30kW to be cryptocurrency-miners, EV enthusiasts, etc? Also, are you NEM or NEM2? Thanks for your input.

thank you @miimura . Sounds good. My initial interpretation was naive. Can you also say that up to 4000kWh is not consequential for me? I am not obsessing about the compensation rate, juat the potential level of over-production. @h2ofun indicates in post #4 that he was credited once for...

As an aside, I forgot to mention that section 5.b calculates the NetSurplusCompensation rate based on 7AM-5PM hours over the previous 12 month period. That's cheap energy times. I wonder why (I can surely guestimate) that only includes the first hour of the ETOU-C rate plan (peak hours 4PM-9PM...

Ok, thanks to all for your responses. @chrstna4, I agree with you 100%. However, I would not put anything past an InvestorOwnedUtility monopoly trying to protect erosion of its profits. NEM3 in California is a case in point. The demise of net-metering to net-billing is in full swing and...

Hi @h2ofun, thanks, yes I am aware of how I can reduce the surplus, if I choose to do that. But must I is the primary question. My main concern is if my surplus exceeds some threshold, will PGE force me to do something about it, or penalize me in some form (besides the pennies credit at...

Hello everyone. Hopefully this question isn’t off topic. Several months ago my wife and I recently had 5kW NEM2 rooftop solar installed at our residence in California Bay Area (PGE). At the time it was sized ~110% according to our previous non-solar billings with PGE. Since then however, some of...