Bulgarian state-owned thermal power plant (TPP) Maritsa Iztok 2 said on Monday that it has opened a 46 million levs ($27.5 million/23.5 million euro) tender for repair works related to planned maintenance, as well as emergency repairs.The term of the contract will be four years, TPP Maritsa Iztok 2 said in a notice. The contractor must begin works within ten days since receiving notification for planned maintenance and within three days when it comes to emergency repairs. All repairs will have a one-year warranty. Last week, Bulgaria's energy ministry said that it has formed a working group tasked with analysing the financial situation of TPP Maritsa Iztok 2 and coming up with measures for its stabilisation. "The significant increase in expenses for buying emission allowances in the past months is a serious challenge to TPP Maritsa Iztok 2 and the Bulgarian Energy Holding," the energy ministry said in a statement at the time.The working group is expected to come up with its proposals by the end of September. Maritsa Iztok 2 has eight operating units with a total installed capacity of 1,620 MW.(1 euro = 1.95583 levs)