University challenge

摘要

Researchers at Bath University are attempting to resurrect low-voltage direct-current power transmission to save money and energy. The university is building a DC local network in its library to power specialised desktop computers that use less energy than traditional machines powered by AC. The DC system prevents the power supply from being distorted, a common problem with AC computers that causes greater energy losses. Utility companies often fine organisations with many computers for causing large distortion problems.