PGE Peak Rebate commentary

I have complained about peak time rebates in the past, because I didn’t feel like it was helping those most vulnerable. This year, I’ve noticed they have included a safety precaution in their messaging so that alleviates a little concern. All that being said, this is the first time I have actually seen significant results on my bill. Last year I had two window units running, one of which was doing so inefficiently. This year, we opted to go the route of a portable unit that exhausts out the window. It still cools most of our front room (LR & Kitchen), and we use fans to circulate the air. I am not positive how they calculate these results, but if it’s compared to last year, going to portable AC has proved effective. Commentary from others?