Wacker, however, the board of directors yesterday unveiled a 2019 forecast, said it expects this year's interest, tax, depreciation and amortisation ( EBITDA) To drop 10 - 20%, the main reason is the average price of polysilicon below expectations.
for road use in South Korea have no emissions from vehicles to Li Luoyuan prime minister proposed using driven hydrogen fuel cell bus replace most of the moored near the U. S. embassy and the main government building in downtown Seoul police cars.
about 10 bus carrying riot police and equipment of diesel bus stop in downtown Seoul usually photochemical door highway, in order to protect the U. S. embassy, and government buildings. Police let their all-weather bus engine idle running, emissions.
hydrogen fuel cells by the chemical potential energy directly into electricity, in essence is more effective than internal combustion engines, internal combustion engines must first convert chemical energy into heat, and then to do mechanical work. Direct emissions of fuel cell car is only water and a small amount of heat. This is a big improvement of internal combustion engine series of greenhouse gases. Fuel cells have no moving parts. So they are more reliable than traditional engines.