TPP Maritsa 3's revenue soared to 38.2 million levs in the January-September period from 11.9 million levs in the like period of 2018, the plant operator said in an interim financial statement.
The sharp rise was due to some 25.8 million levs in revenue booked from sale of goods, versus none in the prior-year period.
However, operating expenses also jumped in the period under review - to 32.3 million levs from 5.1 million levs the year before.
TPP Maritsa 3's assets amounted to 120.8 million levs at the end of September, up from 116.5 million levs a year earlier.
The 120 MW plant is located in the town of Dimitrovgrad, in southern Bulgaria.
(1 euro = 1.95583 levs)