How does Bulb deal with surplus energy generated from a domestic pv solar array?
As an example, household uses 15kWh in a 24hr period, pre solar install this all comes from the grid, is metered and charged for at applicable tariffs (incl E7) - no problem.
Then a modest pv array is installed, non-FiT, same overall domestic consumption, but let’s say 5kWh pv self generated, with 2kWh of this displacing grid supply. So now we have 13kWh being grid supplied, no problem with it being metered and charged for…
…but how is the 3kWh of pv self generated power treated?
As this is a non FiT installation, there is no expectation for any payment for the 3kWh exported back into the grid, but if the digital (non-smart) meter registers the 3kWh irrespective of it being imported or exported to the grid (yes they do exist) so when it comes to meter reading time Bulb charges for 16kWh, even though only 13kWh was actually supplied?
The obvious solution is to ensure that all excess pv generated power is self consumed, but I just wanted to obtain confirmation of how this situation would be dealt with?
Fitting a new smart meter would also avoid the issue, but if it was not possible to fit a smart meter…what is Bulb’s stance?