Battery powered SA, could be 100% renewable for just $60 – $90 billion

South Australia (SA) is planning to build a new gas fossil fuel plant for $550 million because it has too much competitive and “cost efficient” free energy. There are fears this will not only push up electricity prices in the state but in Victoria, NSW and Tasmania too. (Bravo, SA). In order to build a new fossil fuel plant with Greens permission they spend $360m on the new gas plant, and then offered $150m more to appease the angry renewables spirits. It is said to be needed to encourage investment. Obviously no sane investor would spend money on renewables for purely economic reasons.

Meanwhile Elon Musk offered to fix the states problems in just 100 days or “it’s free” and with only $33million for a 100MWh battery farm. The offer has triggered a bun fight between Musk and local companies who say they can do even better.

But in the long run, SA wants to go “100% renewable”. Below Paul Miskelly and Tom Quirk calculate that for SA to truly do that, it would need about 270GWh of batteries to cover the peak use. This would require 7.5 million tonnes of lead acid batteries and cost 60 – 90 billion […]