To those who earlier replied to a question about paying PEA with BKK that it is not possible you are wrong. I pay PEA every month with BKK but you gotta use the web version of BKK. In the PEA app you select BKK - then log on on the web version BKK and you will see the amount and everything else is already filled out and you just approve it - quite easy and only takes a couple of minutes but it is stupid that you can't use the BKK app. Krungsri app doesn't work either.
TLDR : Answer Summary
The post clarifies that it is possible to pay the Provincial Electricity Authority (PEA) using Bangkok Bank (BKK) by accessing the web version of the bank, despite misconceptions about the BKK app's functionality. Users can select BKK in the PEA app, then log onto the BKK website where the payment details will be pre-filled for approval. Other methods, such as using Lazada for PEA payments, are also mentioned. The conversation includes advice on the best timing for payments and tips on app navigation.