Comparative analysis of solar thermal power generation and photovoltaic power generation

Solar thermal power generation is the technology that converts light energy into heat energy, and then generates electricity by the traditional thermodynamic cycle. Photovoltaic power generation is solar irradiation of high purity silicon, the electronic transition, the formation of potential difference, light energy directly into electrical energy, which is produced by direct current.

Photovoltaic power generation is unstable and intermittent, and its power quality is low, and the grid connection requirements are high. Will impact on the operation of power grid. Photothermal power generation has stable power output, and the power is adjustable and easy to be connected to the grid.

There is a unified benchmark price of photovoltaic power in China, while the thermal power is still using the Chartered bidding or the one on one price.

The cost of photovoltaic power is lower than the cost of heat, electricity and economy. At present, the cost of photovoltaic power is about 0.85 yuan / kWh, and the cost of thermal power is about 1.8 yuan / kwh.

Photovoltaic power industry chain is relatively mature, the development is more rapid, power plant installed scale growth faster. The thermal power generation industry has just started, the industrial chain is not perfect, and the industrial development is faced with many problems, such as the choice of technical route, the localization of related key equipment, system integration and so on.

The national policy support of photovoltaic power generation is more, the recent national policy support of thermal power generation is not obvious.

The cost of photovoltaic power generation dropped rapidly, photovoltaic projects easier to obtain financing, and for thermal power generation, the current cost is still high, the banking financial institutions of its acceptance is low.

In the long run, photovoltaic power generation and thermal power generation have their own advantages, and they want to complement each other and develop together in the future.