EUAA Submission: AEMC National Electricity Amendment (RRO Exemption For Bi-Directional Units) Rule 2024
Emily Wood | July 4, 2024
‘…Under current RRO obligations, retailers, large energy users and, notably, bi-directional units (BDU) with annual electricity consumption (from charging from the grid) above 10GWh per annum, are liable entities to the RRO.
However, BDU provide other services, including contingency and regulation Frequency Control Ancillary Services (FCAS) lower services (including the new 1 second very fast FCAS market, which only Battery Energy Storage Systems – BESS can provide), system integrity services, such as System Integrity Protection Schemes (SIPS) and Wide Area Protection Scheme (WAPS), inertia or system strength when BESS operate with grid-forming inverters and out-of-market contracts to provide system security services. It is also highly likely that BDU operators will largely operate in the arbitrage game, buying low and selling high. By purchasing energy when it is in abundance (i.e. at peak solar PV generation periods) it will assist with managing negative demand periods that are emerging as significant issues for grid stability. We should be encouraging this “load shifting” behaviour, which has the potential to eliminate reliability gaps….’
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