Marki is a 30 thousand city located in the Mazowieckie voivodship near Warsaw. The national road no. 8 and the closeness of the capital have contributed to the fact that local government and residents are looking for ideas for more environmentally friendly solutions.

In the summer of 2017, REC Polska prepared for Marecki Town Investments Sp. with o.o. An analysis of the possibilities of financing domestic and foreign energy-saving construction in the construction of a zero-energy school in Marki.