PV Bidirectional Meter: Energy Measurement Between Home and Grid "Smart Housekeeper"
What is a photovoltaic bidirectional(two-way or net metering) meter?
PV bidirectional meter is a special kind of electricity metering equipment, which can be simply understood as a "reverse" meter. The meter mainly records the amount of electricity obtained by the home or enterprise from the power grid (how much electricity is used), that is, the electricity flows from the power grid to the user's home or enterprise in one direction.
But the photovoltaic bidirectional meter is different. It can not only record how much electricity you use, but also record the amount of electricity you send back to the power grid. For example, when you install a photovoltaic power generation system in your home (such as solar panels on the roof), when the sun is sufficient during the day, the solar panels may generate more electricity than the electrical equipment in your home needs. At this time, this excess electricity can be fed back to the power grid through the two-way meter. When photovoltaic power generation is not enough, such as at night or on rainy days, the home will draw electricity from the power grid, and the two-way meter can also record this process.
Why do we need a two-way meter?
Accurately measure power transactions
For users who have installed photovoltaic power generation systems, if they cannot use up the electricity generated during the day, they can sell it to the power grid to make money (or deduct electricity bills). The two-way meter will accurately measure "how much electricity you sold to the power grid", so that the power company can pay you (the user) fees (income) at a certain price (usually called the on-grid electricity price) according to relevant regulations.
Grid dispatch and management needs
From the perspective of the power grid, the two-way meter helps the power grid company to better manage and dispatch power resources. Because photovoltaic power generation is intermittent, it is greatly affected by factors such as weather and day and night.
Through the two-way meter, the power grid company can monitor the access of distributed photovoltaic power generation in real time and understand the power generation and power consumption status of each access point.
IVY Metering EM513082~EM513084 series is a three-phase rail meter with a post-payment metering mode. The maximum current can reach 100A. It is a multi-functional energy monitoring meter. It can support RS485 communication and is suitable for home and commercial power distribution systems, as well as new energy metering systems, such as charging piles and solar power generation systems.
The main features are as follows:
Simple metering installation solution
Record output and input power
Automatically display the net value on the display
No manual calculation required
Directly connect to three-phase 100A power supply
With RS485/MODBUS
Bidirectional metering
Multiple rates (optional)
Compliant with RE test
Compliant with MIDEN50470-1/3 standard
The Net meter is currently mainly used in the following scenarios:
Distributed photovoltaic power station
Measuring the surplus power on the grid and the power grid to meet the subsidy settlement required by the policy (such as the "self-generation and self-use, surplus power on the grid" mode). This meter can meet the two-way demand for power metering of distributed photovoltaic power generation systems and provide accurate power data for users and power grids.
Energy storage system
Cooperate with battery charge and discharge management to optimize energy storage and release, prevent reverse flow and regulate power generation.
Industrial and residential electricity
Applicable to factories, commercial buildings and home photovoltaic systems to reduce electricity costs and achieve energy self-sufficiency.
Electric vehicle charging management
The two-way meter can be combined with the electric vehicle charging system to achieve real-time monitoring and optimization of charging power.
By collaborating with the IoT cloud platform, the meter can provide the most effective charging strategy to ensure that the charging process is efficient and does not affect the stability of the power grid.
As the core metering equipment of the new power system, the photovoltaic bidirectional meter launched by IVY Metering is becoming an important support for the digital transformation of energy with its excellent performance. Welcome to inquire about our products through WhatsApp or email.
