Home balcony photovoltaic energy management, power generation measurement

Home balcony photovoltaic energy management and power generation metering:

Features

• High precision bidirectional measurement functionUsing a 24 bit chip, it can achieve ± 0.5% ultra narrow error bidirectional measurement, which can simultaneously record forward electricity consumption (grid → household) and reverse power generation (photovoltaic → grid) data, accurately distinguish spontaneous self use, grid purchase, and energy storage charging and discharging data, and reduce settlement error rate to within 0.2%.

• Anti backflow control functionReal time monitoring of current direction, response speed ≤ 100ms, far exceeding the national standard requirement of 200ms. When detecting the reverse transmission of electrical energy to the grid, the power generation can be adjusted through Modbus commands linked to the inverter or energy management system (EMS) within 0.5 seconds to avoid fines and equipment damage.

• Intelligent communication and integration functionsBuilt in RS485 interface, supports Modbus RTU protocol, compatible with mainstream inverters such as Huawei and Sunac, with a tested compatibility rate of 98.6%. Simultaneously supporting WIFI communication, it can be remotely monitored through a mobile app or cloud platform, providing real-time feedback on power generation, battery status, and other information. It can also store data locally for 90 days and generate electricity analysis reports.

• Multi parameter monitoring and alarm functionIn addition to electrical energy data, it can also expand monitoring parameters such as voltage harmonics and equipment temperature. When abnormal states such as overload, short circuit, and reverse flow occur, it can instantly push alarm information, and the APP can respond in seconds, reducing the failure rate by 90%.

• Compact structure and high adaptabilityAdopting DIN 35mm rail installation, with a compact size and reference dimensions of 76mm × 89mm × 74mm, it is suitable for compact distribution boxes in old residential areas. External open-ended transformer, supporting flexible matching of different current specifications (80A/120A/200A/300A), can be installed without power outage, and has wide environmental adaptability. The working temperature is -40 ℃~+70 ℃, the protection level is IP51, dustproof and moisture-proof, suitable for outdoor environments on balconies

Home balcony photovoltaic energy management, power generation measurement

• Technical Specifications

• measurement parametersCapable of measuring all electrical parameters, including voltage U, current I, active power P, reactive power Q, apparent power S, power factor PF, frequency, etc. Voltage U is rounded to 1 decimal place, frequency F is rounded to 2 decimal places, current I is rounded to 2 decimal places, and power P is rounded to 3 decimal places.

• communication parametersSupports RS485 interface and Modbus RTU protocol, as well as WIFI communication. WIFI communication can support Modbus TCP protocol or HTTP server protocol, and some models support optional built-in or external antennas.

• Application scenarios

• Home balcony photovoltaic systemIt can accurately measure the photovoltaic power generation of home balconies, household electricity consumption, and surplus electricity on the grid, helping users to have a clear understanding of energy usage, achieve refined energy management, optimize electricity consumption strategies, and reduce electricity bills.

• Small distributed photovoltaic power stationFor small distributed photovoltaic power plants, this meter can accurately measure and monitor their power generation and consumption, achieve intelligent management of the power plant, and improve the operational efficiency and economic benefits of the power plant.

• Energy Storage SystemIn the energy storage system, real-time monitoring of the charging and discharging status and changes in battery capacity of the energy storage battery can be achieved, and communication with the management equipment of the energy storage system can be carried out to optimize the control of the energy storage system and improve its service life and performance