> Even if renewables come to generate the majority of our electricity, they need to be combined with so-called dispatchable power that can be switched on at any

> Even if renewables come to generate the majority of our electricity, they need to be combined with so-called dispatchable power that can be switched on at any time. There is plenty of lithium in the oceans — among other places — and no shortage of iron or phosphorus (ignoring agricultural use of P which is much larger), so that it is realistic to store weeks or months of energy in LiFePO4 batteries, even at a global scale. What we lack here is investment.