Before the 1990s, China's telecommunications sector was a lacklustre monopoly featured by poor-quality service and inadequate capacity. Today the country boasts a dynamic telecommunications industry with the world's largest communications network and user-base with over 460 million telephone...

This paper deals with the energy management of a photovoltaic based power station. This power station includes storage units with batteries for long-term energy supply and ultracapacitors for fast dynamic power regulation. According to the availability of the primary source, the level of the...