> Simply by buying low and selling high. Well put. Now, the trick is, you need to buy low and sell high quite often. If you do that once a year, no way you re

> Simply by buying low and selling high. Well put. Now, the trick is, you need to buy low and sell high quite often. If you do that once a year, no way you recoup your capital investment in five years. Or 20. That's what a lot of people don't understand. Batteries can store electricity from day to night, but not from summer to winter. Nothing is cheap enough to store electricity from summer to winter. And nothing will ever be. Including pumped hydro, or hydrogen storage. Nothing can be economical by just collecting one dollar per kWh once a year (and generally the difference between summer and winter is well below $1/kWh). The trick is to buy low, sell high, on a daily basis, but do it in different places. Like make hydrogen in Australia and sell it to Japan and China. This is a golden opportunity for Australia to become the Saudi Arabia of solar. Except, of course, Saudi Arabia can also become the new Saudi Arabia of solar, if they are smart.