Customers who do not have an ESB Networks Smart Meter will be paid by a “Deemed Export Quantity” which is an estimation.
This estimation is based on an ESB Networks formula, of exported electricity in kWh: it will be used as a proxy for metered export data,
The formula to calculate Deemed export quantity = MEC x Capacity Factor x Export Factor x Provision Interval.
Where:
MEC is a capacity value in units of kW, representing the generation capacity of the installed generation equipment, as declared via ESBN’s NC7 (or equivalent) form
Capacity Factor is the ratio of average electricity produced to the theoretical maximum possible if the installed capacity was generating at a maximum for a full year. CRU have proposed this value is set at 9.7% for all technology types. It is the average capacity factor of photovoltaic panels
Export Factor is the amount of electricity (expressed as a percentage of electricity produced) deemed to be exported, where the metered data is not available. CRU have set this value at 35%
Provision Interval is the number of hours in the period for which cumulative export quantities are to be calculated and to be made available to suppliers by ESBN
Example of a deemed calculation:
Sample calculation for Deemed Export Quantity
Example: Commercial customer with an MEC of 50 and where the “Provision Interval” is 12 months (= 8760 hours)
| – Parameter |
– Value |
– Comment |
| – MEC (kW) |
– 50 |
– As recorded by ESBN |
| – Capacity Factor |
– 0.097 |
– 9.7% as decided by CRU |
| – Export Factor |
– 0.35 |
– 35% as decided by CRU |
| – Provision interval |
– 8760 |
– 12-month interval |
Deemed Export Quantity = MEC x Capacity Factor x Export Factor x Provision Interval
Deemed Export Quantity = 14,870.1kWh (=50 X 0.097 x 0.35 x 8760)
