Abstract
To improve the utilization rate of the energy industry and reduce high energy consumption and pollution caused by coal chemical industries in northwestern China, a planning scheme of a wind-coal coupling energy system was developed. This scheme involved the analysis method, evaluation criteria, planning method, and optimization operation check for the integration of a comprehensive evaluation framework. A system was established to plan the total cycle revenue to maximize the net present value of the goal programming model and overcome challenges associated with the development of new forms of energy. Subsequently, the proposed scheme is demonstrated using a 500-MW wind farm. The annual capacity of a coal-to-methanol system is 50,000. Results show that the reliability of the wind farm capacity and the investment subject are the main factors affecting the feasibility of the wind-coal coupled system. Wind power hydrogen production generates O2 and H2, which are used for methanol preparation and electricity production in coal chemical systems, respectively. Considering electricity price constraints and environmental benefits, a methanol production plant can construct its own wind farm, matching its output to facilitate a more economical wind-coal coupled system. Owing to the high investment cost of wind power plants, an incentive mechanism for saving energy and reducing emissions should be provided for the wind-coal coupled system to ensure economic feasibility and promote clean energy transformation.
Highlights
From the development and utilization of coal and oil to the application of new energy sources such as wind and light, low-carbon and clean energy forms are desired
The use of clean and renewable energy sources solves the problem of significant pollution and energy consumption associated with the coal chemical industry, transforms the high energy consumption of the coal chemical industry into the application scene of new energy, overcomes challenges pertaining to the development of new energy forms, and realizes the mechanism of the common clean, efficient, and sustainable development of regional energy systems
Considering the integration of the coal chemical industry and new energy sources, the use of wind power and photovoltaic electric energy has been proposed for producing methanol
Summary
From the development and utilization of coal and oil to the application of new energy sources such as wind and light, low-carbon and clean energy forms are desired. Considering the integration of the coal chemical industry and new energy sources, the use of wind power and photovoltaic electric energy has been proposed for producing methanol. An economical and environmentally beneficial evaluation framework was proposed for optimizing hydrogen and natural gas supply chains and performing reliability analyses [16,17]. An evaluation standard system was established for the performance evaluation of sustainable development, considering the economic, environmental, and social aspects related to integrated wind–light–hydrogen systems [18]. To address the aforementioned problems, we propose a wind-coal coupling energy system (WCCES) and establish a comprehensive evaluation framework for the energy system, which involves the analysis method, evaluation criteria, operation planning, and optimization verification. We provide a theoretical basis for promoting the transformation and upgrading of the energy industry in Xinjiang, Gansu, and other provinces with abundant wind and coal resources in northwestern China to overcome the severe energy shortage and environmental pollution dilemma in China
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