PG&E wanted you to go to EV2A or required you to go to EV2A unless you could prove otherwise?
I struggle to understand how EV2A provides a benefit unless you are have a very large amount used from 12:00am to 3:00pm and can avoid both Partial Peak and Peak from 3:00pm-12:00am with ESS.
| Period | E-TOU-C
@ 0.5 * Baseline | E-TOU-C
@ Baseline | E-TOU-D | EVA-2 | EV2A-ETOUC @ Base |
|---|
| Summer Peak | 0.38682 | 0.40088 | 0.47427 | 0.55950 | 0.15862 |
| Summer Part-Peak | | | | 0.44901 | 0.11157 |
| Summer Off-Peak | 0.32338 | 0.33744 | 0.33931 | 0.24699 | -0.09045 |
| Winter Peak | 0.28972 | 0.30378 | 0.38466 | 0.43239 | 0.12861 |
| Winter Part-Peak | | | | 0.41569 | 0.12923 |
| Winter Off-Peak | 0.27240 | 0.28646 | 0.34605 | 0.24699 | -0.03947 |
E-TOU-C is different from E-TOU-D and EVA-2 with the baseline component which gives you a credit for every kWh below the baseline and charge for every kWh over the baseline. If the baseline is 10.3 kWh day and the period is 30 days then that baseline for the month is 309 kWh. If your net imports/exports is 309 kWh then the credit/charge is $0 to the baseline. If you used only 150 kWh then you would get a credit of (309-150) * $0.02812 = $4.47. If you used 500 kWh then you get a charge of (500-309) * $0.06242 = $11.92. I think that most people with solar should be below the baseline and near the baseline in Dec/Jan.
Looking at the difference between the EV2A and E-TOU-C at the baseline there is a steep penalty for EV2-A with the longer Partial Peak and Peak during both Summer and Winter. EV2A has a good benefit for the 12:00am-3:00pm period during the Summer, but it Winter it becomes marginal and the lower solar generation will make it difficult to get through the higher rate period from 3:00pm-12:00am. If you can charge from the grid during Off-Peak during the Winter then the EV2A might be a winner
E-TOU-D is a tariff that should be avoided for solar customers.
