While I appreciate the new "50% discount off peak", what Tesla failed to mention is that they raised the on-peak rates and on-peak hours.
For example, the supercharger nearest to me in San Jose used to be:
On peak: 4pm-9pm, $0.34/kWh (5 hours)
Off peak: 9pm-4pm, $0.24/kWh
And now its:
On peak: 10am-7pm, $0.40/kWh (9 hours)
Off peak: 7pm-10am, $0.20/kWh
So sure, it's "50% off", but the on-peak cost has also been raised and the 50% discount is based on the new $0.40/kWh rate, and not the old rate.
And not only that, and perhaps more importantly, the on-peak hours have been increased from 5 hours (4-9pm) to 9 hours (10-7pm)!
I don't have home charging, so I rely on my local supercharger for all my charging needs. I used to go to the supercharger during my lunch hour to charge up during off-peak (for both rates and traffic), but now I can't do that anymore. Now I have to go after 7pm, but likely after 9pm because around 7-9pm it's still super busy during dinner time. I only found out about this new on-peak hours adjustment after receiving my latest charging bill this week for charging at noon. It was $22 which is almost double what I usually pay, which is around $13 (for ~55 kWh of energy).