SOFIA (Bulgaria), September 11 (SeeNews) -Â Bulgarian thermal power plant (TPP)Â Maritsa 3 [BUL:6TM] said on Friday that its standalone net profit fell to 4.1 million levs ($2.5 million/2.1 million euro) in the first half of 2020 from 6.9 million levs in the same period of 2019.