I only mentioned solar/battery for brevity but clearly wind/battery is already substantial in many parts of the world. In addition, HVDC transmissions line costs are also dropping year by year and these allow solar/wind generated electricity to be inexpensively shifted across long distances.
For example, such a transmission line is currently being built to send solar energy from Northern Australia to Singapore across about 3000km of ocean. Another project is generating wind energy near Iceland and sending it to the UK a distance of 800km.
Ok, and thank You for remember about Australia to Singapore transmission line.
Unfortunately, most of territories I mention, also have low population density, about 1/10 of western Europe, and have low middle income, so it is not right to directly compare them with western Europe or Singapore, in possibilities to achieve same infrastructure power.
For example, such a transmission line is currently being built to send solar energy from Northern Australia to Singapore across about 3000km of ocean. Another project is generating wind energy near Iceland and sending it to the UK a distance of 800km.