Sorry for stalking I'm from SA and we're considering pumped Hydro in addition to the Big Battery tourist attraction. I'm with @plough it's eminently viable. A recent report from the ANU has shown that we have 180 viable sites which in total represent 10x the energy storage required by SA, but more realistically, 100% reliable renewable energy is entirely achievable. Unfortunately, our governments excel at flogging dead horses.
Actually a good research topic would be to work out how much energy you could store in a domestic water tank from solar panel excess generation. I suspect you'd need pretty tall stilts on your tank stand, and some very rare earth magnets in your dynamo!! It might be feasible on a small scale for rural properties with dams and enough water to keep them topped up.
I'm from SA and we're considering pumped Hydro in addition to the Big Battery tourist attraction. I'm with @plough it's eminently viable. A recent report from the ANU has shown that we have 180 viable sites which in total represent 10x the energy storage required by SA, but more realistically, 100% reliable renewable energy is entirely achievable. Unfortunately, our governments excel at flogging dead horses.
