That is completely false. There is no way the state could have all of its baseline power needs met by just solar and wind. As far as I know the power plant up in the port is still running and burning coal as it always did.
The buying of peak electricity from interstate is more likely a factor of higher gas prices as mentioned in the article. This is because the coal fired plant in the port has gas turbines that get used when load spikes.
Source: I used to live there, still have family and friends there.
The Port Augusta coal power station was demolished. There are two gas power stations in Adelaide. One was mothballed, but the state government forced the owners to start it up again after a statewide power last year. The government plans to invest in a new gas power station, plus they have a 100 mil fund set up to invest in multiple energy storage solutions to help capture excess wind power.
The buying of peak electricity from interstate is more likely a factor of higher gas prices as mentioned in the article. This is because the coal fired plant in the port has gas turbines that get used when load spikes.
Source: I used to live there, still have family and friends there.