Thread: Summary of my 96% renewable NEM simulation, as presented at ANU's 100% renewable workshop. My data is based primarily on actual wind & solar generation data, using 3 yrs of data at 30 minute resolution. It uses 24GW/81GWh of short-term storage plus Snowy2.0. 1/8 
Actual wind and solar generation has been scaled up to 38 GW of wind, 16 GW of utility PV and 35 GW of rooftop PV. Also assumed a completed NSW-SA interconnector, Stage 1 of the Marinus cable to TAS, and the medium upgrade of the NSW-QLD interconnector. 2/8
The remaining 4% came from "other". In the short to medium term, "other" is likely to mean gas or demand management. But in the longer term it could transition to biofuels/biogas, long-term storage such as Tasmania's battery of the nation, or a hydrogen based source. 3/8
During days of poor wind and/or solar resource, existing hydro and/or Snowy2.0 is run hard, which makes up much of the shortfall. "Other" is used to fill the remaining shortfall. 4/8
For the 24GW/81 GWh of short-term storage, it's worth noting that we already have ~1.4GW/25GWh from the existing pumped hydro projects at Tumut3, Shoalhaven & Wivenhoe. The remainder could come from 3 million residential batteries and a small fraction of an EV car fleet. 5/8
QLD is a particularly important state, due the relatively good performance of its wind on calm wintery days in the southern states. Its solar also performs relatively well on those days too. 6/8
Finally, note the negative correlation between Mt Emerald wind and solar/wind in every other state, at both 30-minute & daily timescales. Nth QLD is particularly important to a mostly renewable NEM! 7/8
The full presentation is available at ANU's 2020 100% renewable workshop webpage 8/8
re100.eng.anu.edu.au/100REWorkshop/…
re100.eng.anu.edu.au/100REWorkshop/…
One more tweet for @simonahac & @gnievchenko . A graph of the curtailed generation. If we were able to send the curtailed generation to a hydrogen electrolyser, then the 2nd graph shows the capacity factor of that electrolyser, and how much of the curtailed power it could use.
