Analysis of Necessity of Transforming Electrical Grid Access Training and Examination Regulatory Agency Mode

There are numerous electricians,but only a few of them have obtained certificate. Training and examination agencies provide services relating to training,examination,and certificate application and so on.Thus,training resources are not rationally utilized,and the increased training demand cannot be fully satisfied.Under such circumstances,it is recommended to transform the regulatory agency mode by establishing a scientific management process,and put forward a new mode of electrical grid access training and examination to better meet related demands. Under the coordination of examination center regulatory agency, uniform training program,training materials,charging standard,examination and certificate can be guaranteed. This project is carried out as an effort to improve the quality of electronic- engineering training and examination,so that electricity accident rate can be reduced,and the security of electrical grid operation can be guaranteed to boost the rapidly developing economy.

Energy access challenge and the role of fossil fuels in meeting electricity demand:Promoting renewable energy capacity for sustainable development

The energy access challenge remains a significant barrier to sustainable development,with millions of people still needing access to modern energy services.Fossil fuels have played a crucial role in meeting electricity demand,but they face challenges and drawbacks in terms of environmental sustainability,energy security,and climate change.This study examines how renewable and non-renewable energy generation capacity impacted the environment in 53 upper-middle-income countries from 1990 to 2020,using energy access and alternative energy sources as mediating variables.The findings of this study provide valuable insights into the complex relationship between renewable energy generation capacity,energy access,alternative energy sources,and environmental conditions in upper-middleincome countries.The positive relationship between renewable energy generation capacity and environmental conditions emphasizes the importance and potential of renewable energy sources in mitigating environmental degradation.Additionally,the findings indicate that energy access also plays a crucial role in shaping energy generation patterns,with higher levels of access being associated with increased renewable energy generation and decreased reliance on non-renewable energy sources.These findings highlight the urgent need for policies and measures to promote renewable energy adoption and prioritize energy access to mitigate environmental degradation and achieve sustainable development goals.

Novel Radio on Fiber Access Eliminating External Electric Power Supply at Base Station

A novel Radio On Fiber(ROF) access is proposed and demonstrated which enables the pico-cell Base Station (BS) for high-speed wireless communications to eliminate external electric power supply facilities. We demonstrated 2.4-GHz band radio signal transmission through the BS without external electric power supply. The electrical power used for BS circuit is feeded by optical power over optical fiber from central station.

Feasibility Ananlysis of Building Pithead Power Plants in North Shaanxi and Ningxia Coal Bases

North Shaanxi and Ningxia are extremely abundant in coal resources, with excellent geographical positions and transport facilities, suitable to build large size pithead power plants. This paper details the coal resources in North Shaanxi Province and Ningxia Autonomous Region, fuel coal and transportation conditions for building large size pithead power plants, and carries out the analyses of economic benefits and electricity prices of bidding for access to grid for the six recommended power plants. The analyses show that these power plants, after built up, will have strong competitive powers and make contributions for the sustainable development of power industry in North China and Shandong Province.