Large demand facilities such as data centres, are being connected to the Finnish power system. These new loads have a significant impact on the stability and performance of the power system. Fingrid, the TSO of Finland, has published a draft of an updated grid code for demand facilities in 2026 that introduces several new requirements set for loads exceeding 30 MW. The new requirements are based on comprehensive studies in which system needs related to frequency stability, voltage stability and secure interconnection operations were assessed. Two critical technical requirements for maintaining frequency and voltage stability are Low Voltage Ride Through (LVRT) and Post-Fault Active Power Recovery (PFAPR). In addition to this, special attention must be paid to load types such as AI training clusters, which may excite inter-area oscillation modes. This paper outlines the key findings from the system studies, presents the main technical requirements for demand facilities, and briefly describes the compliance process.