The combination of tiers and TOU rates isn't as complicated as it could be, because the rate bumps from being in a higher tier or between off-peak, part-peak and peak are independent.
The increase between tiers is the same for all the time periods, and the increase between periods is the same for all tiers. Using E6 as an example: 0.49602 - 0.42018 = 0.07584 summer peak tier difference 0.37758 - 0.30174 = 0.07584 summer part-peak tier difference etc. 0.49602 - 0.37758 = 0.11844 peak to part-peak difference at high tier 0.42018 - 0.30174 = 0.11844 peak to part-peak difference at base tier etc. This actually keeps the calculations simple. One passes into the higher tier when the total (no matter the time period) surpasses baseline, and one gets the TOU increases based on period no matter what tier. Since the utility calculates based on monthly totals, they just need to have the net total to calculate the tier contributions, and the net total in each time period to calculate the TOU components. Antony Tersol On Sun, May 2, 2021 at 5:20 PM Antony Tersol <ater...@gmail.com> wrote: > PGE: After you export more than the baseline rate, you start getting > credited at the over-baseline rate. > > When there were multiple tiers, you got credited for whatever tier the > production was in. > i.e. baseline rate for the kWh's up to baseline amount, tier 1 rate for > next kWh's up to tier 1 limit, etc. > > At one time there were 5 tiers, then 4, then 3, now 2. > > > Antony Tersol > >
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