Introduction  Inorder to improve the reliability requirements and effectively reduce energy consumption, the paper proposes a comprehensive solution for a mains + natural gas distributed energy system and analyze the technical feasibility and economy of the solution, and give support for the choice of the solution.

  Method  To verify the feasibility of the solution, we took a certain data center as example, comparative analyzed the consumption and the distributed energy system of the project.

  Result  The results we obtained demonstrate that compared with conventional data centers, data centers supporting natural gas distributed energy systems have certain advantages in reducing energy consumption. The solution has certain economics, when natural gas prices, cold prices and electricity prices are properly matched.

  Conclusion  The solution and economics this work provided are correct and effective and can provide guidance for investment decisions in natural gas distributed energy projects.