Co-optimisation is a structured approach to ensuring that Energy ResourceA universal term for all technologies that provide one or se... services dispatched and/or financially incentivised in one vertical Tier/LayerThe vertical layers of a GW-scale Power System including the... of the Power SystemA critical societal System that, in the case of GW-scale gri... (e.g. Bulk Power, Transmission or Distribution) are not driving unintended negative consequences in other Tiers/Layers of the Power System.