Thermal unit size standards are also changing. Currently, those under 300 MW are small units, and those under 200 MW are likely to be dismantled due to their high energy consumption and pollution; and 600-1000MW belong to large units. The unit capacity of the hydropower unit depends on the water storage height and the water storage capacity of the dam. For example, the Three Gorges unit has a unit capacity of 700 MW, which is currently the largest in the world. The capacity of a single wind turbine unit is small, generally not more than 1 MW. Biomass energy is an industry supported by circular economy policy, and this type of unit is rare.
The high voltage power plant of the 100 MW generator uses the following volts. According to relevant information, for generator sets below 100 MW, the generator output voltage ist of 3KV, 6Kv and 10KV. High voltage refers to higher voltage. Industrial power supplies with voltages between 3,000 and 11,000 volts are called high voltage power supplies. Under normal circumstances, power supplies with voltages of 250 volts and above are called high voltage power supplies.