1-2 years. Distributed wind power is similar to distributed photovoltaic, and the generated electricity can be connected to the local power grid for consumption. The development cycle of decentralized wind power is 1-2 years. In low wind speed areas, the cost of decentralized wind power system is not much different from that of centralized wind power system, and the investment income is guaranteed because there is no wind abandonment and power restriction. At the same time, market-oriented transactions are oriented to decentralized projects, which is helpful to improve the project yield and has a very broad development prospect.