Elektrotim has signed an agreement with Polskie Sieci Elektroenergetyczne which highlights where a large proportion of investment in the Polish energy sector will be concentrated in the coming years: on adapting the grid to the rapidly growing number of new energy sources.
The contract covers the expansion of the 220 kV switchyard at the Leśniów substation, which is intended to enable the connection of the Niedźwiedź photovoltaic installation and those of other entities. The maximum value of the contract, including the option right, is PLN 89.35 million net. The works are expected to take 38 months, and Elektrotim will provide a five-year warranty for the completed installations.
The scale of the contract is significant for the contractor. Its maximum value corresponds to over 15 per cent of Elektrotim’s consolidated revenue for 2025, although revenue from the project will be spread over several years. At the same time, the contract increases the company’s exposure to the power infrastructure segment, where the investment portfolio is growing rapidly.
PSE plans to spend over PLN 64 billion on the development of the transmission network by 2034. The programme includes, amongst other things, approximately 4,700 km of new 400 kV lines, the construction of 28 new substations and the modernisation of a further 110. The grid is to be prepared, amongst other things, for the connection of approximately 45 GW of photovoltaic capacity.
This is an increasingly urgent task. As early as February 2026, photovoltaic capacity in Poland had already exceeded 26 GW, and PSE periodically curtail renewable energy production due to energy surpluses and system constraints.
The contract in Leśniów is therefore part of a wider shift: in Poland’s energy transition, the growing constraint is not the availability of new energy sources, but the grid’s capacity to integrate them and utilise them safely.

