In particular, the Department of Energy frets about certain metals used in manufacturing wind turbines, electric vehicles, solar cells and energy-efficient lighting.
The fuel cell engine was packaged into the cab by Lotus Engineering, which also designed control systems to optimise performance of the fuel cells and electric drive systems.
燃料电池引擎被莲花工程组装完成，同时也包含了控制优化系统和电动机。
3
This is far less than the electric fields that the cells themselves generate.