Of the bacterial isolates found in the Arctic that are able to degrade PCBs, none used compounds such as 2-chlorobiphenyl, 3-chlorobiphenyl, camphor, citronellol, cymene, dehydroabietic acid, limonene, methanol, n-hexadecane, pentachlorophenol, phenol, or pinene as primary growth substrates (Master and Mohn 1998).
In the 20th century, demand for electricity led to the consideration of geothermal power as a generating source. Prince Piero Ginori Conti tested the first geothermal power generator on 4 July 1904, at the same Larderello dry steam field where geothermal acid extraction began. It successfully lit four light bulbs. Later, in 1911, the world's first commercial geothermal power plant was built there.
More than 30,000 small solar panels, each producing 12 to 30 watts, are sold in Kenya annually. Kenya was the first African country to use geothermal power, and still has the largest installed capacity of geothermal power in Africa at 200 MW, with a potential of up to 10 GW.The only other country in Africa utilising geothermal power is Ethiopia.razil produces most of the worldâs sugar-derived ethanol and has been adding new biomass and wind power plants. Many renewable markets are growing at rapid rates in countries such as Argentina, Costa Rica, Egypt, Indonesia, Kenya, Tanzania, Thailand, Tunisia, and Uruguay.