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• BERRP definitions when EnergyRRP is negative and when Energy CV = Energy Maxavail

• Allocation rules when OV != CV

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Background

There is no single correct answer to unique definition of BERRP since it depends on comparing with an alternative scenario. whether or not there is a trade off with another service. (And if there is a trade off with another service then the question becomes which other service or a combination of services.) The default definition of BERRP is when the alternative scenario is unconstrained, that is to say there is no trade off with another service, by definition this is:

LowerBERRP = Utilisation * (SRMC - EnergyFRRP)

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This definition answers the question; what is the actual RRP required where you are indifferent to being enabled and there is no trade off with another service?

BERRP exceptions

These exceptions aims aim to address where there is a trade-off with the energy service. That is to say where being enabled FCAS would result in a change in energy target. In this situation (which must be inferred) the BERRP aims to reflect the value impact caused by the change in energy target.

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