> solar and wind are now cheaper than hydro in many places. It's not possible to run a country entirely on wind and solar, you need backup for when it isn't wi

> solar and wind are now cheaper than hydro in many places. It's not possible to run a country entirely on wind and solar, you need backup for when it isn't windy or sunny. It is possible to run a country entirely on Hydro. The lake on a hydro electric dam will last for a while - in some cases several months - between needing to be topped up by rainfall.