In the process of engineering design, we should always adhere to increasing the proportion of non-fossil energy consumption and comprehensive utilization efficiency of fossil energy. On the one hand, combined with their own conditions, actively develop and utilize wind power, solar energy, geothermal energy and other new energy; On the other hand, to make full use of surplus heat and pressure, promote the comprehensive cascade utilization of energy, and strengthen the coupling of electricity, heat, cold, gas, water and other energy varieties on the demand side and supply side, the most critical thing is to optimize the system as a whole, put forward a reasonable construction scheme, and realize the efficient operation of the project after completion.

In the process of engineering design, we should always adhere to increasing the proportion of non-fossil energy consumption and comprehensive utilization efficiency of fossil energy. On the one hand, combined with their own conditions, actively develop and utilize wind power, solar energy, geothermal energy and other new energy; On the other hand, to make full use of surplus heat and pressure, promote the comprehensive cascade utilization of energy, and strengthen the coupling of electricity, heat, cold, gas, water and other energy varieties on the demand side and supply side, the most critical thing is to optimize the system as a whole, put forward a reasonable construction scheme, and realize the efficient operation of the project after completion.

The multi-function complementary integrated optimization project should propose the most suitable scheme according to local energy resources conditions and user needs. For example, solar thermal power generation has stable power output and strong peak regulation ability, but only in Qinghai, Gansu, Xinjiang, Inner Mongolia, Zhangjiakou and other regions have good development conditions; Gas cooling, heating and electricity combined supply is suitable for heating in winter and cooling in summer with long time and high price tolerance. Therefore, extensive and in-depth investigation should be carried out before engineering design to consolidate the design foundation.

Considering the overall loose power supply and demand, and the problem of abandoning wind and light in some areas, the integrated optimization project of multi-energy complementarity should give priority to digestion of the stock and then develop the increment. For the integrated terminal energy supply system, the specific construction sequence of the project should be determined according to the actual needs of users, aiming at the local balance of energy supply and demand. For the solar water and fire storage multi-energy complementary system, the market should be first implemented and the construction scale should be arranged according to the market demand.

For the system, the multi-function complementary integrated optimization project should realize friendly access, and it should not affect the safe and stable operation of the system under various possible operation modes. For projects where conditions permit, the safety and stability of large systems and the capacity to absorb new energy should be improved as much as possible. For users, the multi-energy complementary integrated optimization project should be committed to providing intelligent, convenient, safe and reliable energy supply and value-added services, and guide users to participate in demand-side management to promote the consumption of new energy.

We should promote the reform of the energy system and mechanism, explore and innovate business models, and establish supporting market trading platforms. Under the current national energy subsidy policy, the multi-function complementary integrated optimization project should have good economy, which can not only provide users with high-quality and inexpensive energy services, but also provide investors with good returns, and play a driving role in the local economic and social development to achieve a win-win situation.