IFRS for the first half of 2015.
Revenue from the core type of industrial activity - power transmission - increased by 1.3% compared to the same period of the last year and amounted to 309.9 billion roubles, despite the significant reduction of energy consumption in a number of subjects of the Russian Federation.
Also, in comparison to the first six months of 2014, EBITDA margin and adjusted EBITDA margin  increased by 30.2% and 32.5%, respectively.
At the same time, Rosseti succeeded in reducing the total operating expenses of the Group to 313.1 billion roubles, which is 18.7 billion roubles or 5.6% less than the same figures of the last year.
Reducing of operating expenses resulted from implementation of the Programme of improvement of operational efficiency, as well as reduction of the costs on electricity for sale by 50.8% to 15.2 billion roubles. (1H2014: 30.9 billion roubles) and reduction of the costs on power transmission by 9.9% to 56.3 billion roubles. (1H2014: 62.5 billion roubles).
Net profit was obtained in the amount of 24.1 billion roubles. Adjusted net profit  amounted to 30.8 billion roubles. EBITDA - 106.1 billion roubles. Adjusted EBITDA - 114.5 billion roubles.
Commenting on the results of the first half of 2015, Deputy Director General for Economics of PJSC Rosseti Oksana Shatokhina noted: "During the first six months of the year, financial performance of the grid complex companies was under pressure of negative economic factors - the reduction of power consumption in a number of subjects of the Russian Federation, the increased cost of debt financing and the increase in the cost of equipment. In response to external challenges, Rosseti Group has launched the process of reducing long-term investment program, as well as has strengthened efforts to optimize the investment and operational activities. Rosseti continued to show a high level of discipline in the area of cost management. Based on the results of the first half of 2015, total operating expenses of the Group decreased by 5.6%.
The key priorities of the Group in the field of economy and finance are the control over the payment discipline of contractors, as well as maintaining a stable financial position of the subsidiaries, which is a prerequisite for successful implementation of the tasks faced by Rosseti Group.
More detailed results of Rosseti Group according to IFRS for 6 months of the current year can be found on the company's website.
 Adjusted EBITDA figure is calculated as EBITDA (earnings before interest, taxes, deprecation and amortization), excluding impairment losses from financial investments and impairment of receivables.
 Adjusted net profit for the reporting period is calculated as the net profit for the period, excluding impairment losses from financial investments, impairment of receivables and related deferred expenses on income tax.