May 2 (SeeNews) - Bulgarian thermal power plant (TPP) Maritsa 3 [BUL:MR3] said that its standalone net loss in the first quarter of 2023 narrowed sharply, to 4.2 million levs ($2.35 million/2.1 million euro) from a loss of 66.7 million levs in the same period last year, thanks to a significant drop in expenses.