Measured energy and comfort outcomes from smart substations in district-heated apartment blocks: Real Estate Business InsightsMirxaydarov Mirabid, Mirzaev Shakir, Dilmurod Suyunov, Djafarova Shaxlo, Sadullayeva Mavjuda and Yuldashev BakhtiyorEPJ Web Conf., 369 (2026) 01012DOI: https://doi.org/10.1051/epjconf/202636901012