A bill passed by the Hawaii Legislature last week has stated that 100 percent of the state's electricity will be generated by renewables by 2045. If achieved, it will make Hawaii the first state in the US to run entirely on sustainable energy sources.

"This is a significant step in our effort toward reducing Hawaii's dependence on expensive imported oil and putting the state on the path toward greater energy, environmental and economic security," Hawaii State Energy Office administrator, Mark Glick, told the press.

The bill will need to be approved by Governor David Ige, and he has until the end of June to sign it, but if he does, Hawaii would need to start generating its electricity from a combination of hydroelectric, biomass, geothermal, hydrogen fuel cells, ocean wave and tidal action, wind, solar and other energy sources, says Bobby Magill at Climate Central, which will replace oil as the source of the majority of their electricity.