{"device_id":"M001_NSW_2000_Sydney","reading_count":139,"first_reading":"2026-06-09 00:07:00+00:00","last_reading":"2026-06-09 23:07:00+00:00","avg_power":2.0559668610412642,"min_power":0.00045547017195178303,"max_power":8.398256298850951,"avg_voltage":240.16075145070337,"min_voltage":239.80062869207146,"max_voltage":240.49735302710292,"avg_current":9.049827605820951,"total_import":52.021971,"total_export":172.775871,"avg_frequency":49.57699515171338,"avg_power_factor":0.9514294514613458}