Fortunately the uk government is currently carrying out a nationwide rollout of smart meters.
Solar power export meter.
Solaredge offers an export limitation option integrated in the solaredge inverter firmware which dynamically adjusts pv power production.
The smart meter will communicate directly with the energy supplier enabling them to pay exactly what they owe.
If you have an old accumulation meter then you will need to upgrade to a smart meter.
Export limiting severely impacts the data that you can see from your solar system making it nearly impossible to know how your system is performing.
The zero export controller measures in real time the power flowing in the system and adjusts the set point of the solar system accordingly.
Then they could present a bill that showed all your savings.
The answer is a smart meter which can make a recording of your electricity exports on a half hourly basis.
If you already have a smart meter then it will need to be configured so that it can measure the power you export.
Solar meters however are bi directional which means they can also measure the electricity that your home exports to the grid.
Let me use one of my bills as an example to show you what a difference that would make.
If the electricity retailers cared about their customers knowing what s really going on they could plug a 20 device called a current transformer into your meter to measure your solar output.
This allows you to use more energy for self consumption when the loads are high while maintaining the export limit also when the loads are low.
When there is a positive balance in the system all solar energy is being used within the installation.