Bright Future Prospect

Abstract

Europeans have been making the effort to use renewable energy for prevention of global warming from the early 1980s. Germany initiated the first green electricity feed-in tariff scheme in the world by Electricity Feed-in Act in 1991. Germany is now performing "Energiewende" from 2010. Germany will accomplish power generation only from renewable energy until 2050, by which 80% carbon dioxide emissions will be decreased. When power is generated only from intermittent and fluctuating renewable energy, supplying of a deficiency and leveling by stable stored power are necessary. For long term storage, our technology of conversion of surplus power to the synthesized natural gas, methane, and electricity regeneration from methane by natural gas power plant are efficient and convenient. In conventional power generation by fossil fuel and nuclear power, more than 60% of energy is exhausted in the form of warm waste water. There is no energy conversion loss in power generation from renewable energy. In the transportation sector the change will be done from gasoline and diesel cars of about 15% energy efficiency into electric and plug-in-hybrid cars. The energy efficiency of electric cars using electricity generated from renewable energy is about 70% for driving and charging, without emitting carbon dioxide. About 50% energy consumption decrease in business and civic life sector will be done by nearly energy-zero new buildings and renovation. The success of "Energiewende" of Germany will lead the whole world to follow their success, ending the dependency on fossil fuels and nuclear power.