Abstract
The study examines the performance and analytical potential of integrated smart electricity, natural gas/biomethane, and water metering systems in a single-family house under Latvian climatic conditions. The analyzed building is a 100 m², single-story, insulated dwelling heated by a natural gas/biomethane boiler, representing a typical residential configuration. High-resolution consumption data were collected and analyzed to assess seasonal patterns, system reliability, and cross-utility interactions. The results demonstrate data availability above 95 % for all utilities, confirming the technical feasibility of integrated smart metering. Clear seasonal electricity and gas consumption profiles were identified, with strong heating-driven variability. Correlation analysis reveals significant coupling between electricity and gas consumption during the heating season, as well as a measurable linkage between gas and water use related to domestic hot water preparation. The findings confirm that integrated multi-utility smart metering provides substantially greater analytical value than isolated systems. The study contributes empirical evidence supporting holistic residential resource monitoring and informs future smart energy system deployment in cold-climate regions.