No one can predict precisely what the electricity system will look like several decades from now.

This energy imbalance is “the most fundamental metric defining the status of global climate change,” scientists said in a 2016 Nature Climate Change article.

This is the only way, she said, that the USA will meet its targets of a 52% reduction in CO2 emissions by the end of 2030, 100% clean energy by 2035 and a net-zero economy by 2050.

They will focus on accelerating progress on electrification and batteries, hydrogen, carbon capture, usage and storage, zero-emission aviation and shipping, "and for those countries that opt to use it", nuclear power.

By the end of the 2020s, annual capital spending on clean energy in these economies needs to expand by more than seven times, to above USD 1 trillion, in order to put the world on track to reach net-zero emissions by 2050.

To limit dangerous global warming and achieve net zero by 2050, the International Energy Agency (IEA) says the water power sector will need to double in size to 2,600GW.

The United States aims to develop 30 GW of offshore wind by 2030.

The auction for 1,243 MW of onshore wind capacity attracted 137 bids totalling 1,161 MW.

"There is public demand across the planet to take better care of the climate situation and have fewer emissions and more environmental responsibility in the energy sector. This process is inevitable but a lot depends on the pace at which it is to be implemented," he said.

China, currently the world's biggest emitter of greenhouse gases, plans make sure its carbon dioxide emissions peak by 2030 and has vowed to become carbon-neutral before 2060