Indeed it is difficult and requires massive investment.
Storage options include pumped hydro, a proven technology for long durations, and some analysis like that done by Australia's national science agency is already finding that: "wind, solar and storage technologies are by far the cheapest form of low carbon options for Australia, and are likely to dominate the global energy mix in coming decades." https://reneweconomy.com.au/new-csiro-aemo-study-confirms-wi...
100% renewable is not really required and I think it's not so bad to use some fossil gas on occasion. In the future it may actually be renewable-generated hydrogen.
For countries with more population and less land it'll be more difficult to find room for massive wind/solar so I certainly hope the challenges with next-generation nuclear get solved soon as well..
Storage options include pumped hydro, a proven technology for long durations, and some analysis like that done by Australia's national science agency is already finding that: "wind, solar and storage technologies are by far the cheapest form of low carbon options for Australia, and are likely to dominate the global energy mix in coming decades." https://reneweconomy.com.au/new-csiro-aemo-study-confirms-wi...
100% renewable is not really required and I think it's not so bad to use some fossil gas on occasion. In the future it may actually be renewable-generated hydrogen.
For countries with more population and less land it'll be more difficult to find room for massive wind/solar so I certainly hope the challenges with next-generation nuclear get solved soon as well..