Wood was mainly used in the 1700's as a way for fuel.
Coal was mainly used in the 1800's and was more portable than other fuel resources such as wood.
Natural Gas and Oil was starting to get popular as a power source/fuel in the 1900's.
Nuclear Power was starting to gain popularity, especially in the 1970's. Accidents began to occur dealing with Nuclear power/energy, and soon started to decline is popularity.
"Since 1995 the amount of energy produced by renewable sources has increased by 15.9%." ~ https://geology.com/articles/history-of-energy-use/
Total renewable energy in 2009 was 8.20% supply.
"According to data released on Aug. 24 by the U.S. Energy Information Agency (EIA), renewable energy in the U.S. through the first half of 2016, including hydro-electric power, biomass, geothermal, wind, and solar (including distributed solar), provided 16.9 percent of electricity generation."
This was a conference to have all industry worker together to spread ideas and discuss the future of energy/power usage.
"The new report publishes figures for the quarter just passed and revealed that renewable energy sources accounted for 19.35% of net US electrical generation during the first quarter of this year. Conventional hydropower accounted for 8.67% of all US electricity generation, followed by wind power with 7.10%. Biomass (1.64%), solar (1.47%), and geothermal (0.47%) also did their part."
"Plug-in hybrids or PHEVS are similar to gas-electric hybrids but have larger batteries that can propel the car limited distances on electricity alone, thus generating zero emissions. The batteries can then be recharged by being plugged into an electric power source."