Impact of distributed photovoltaic integration voltage levels on end-users carbon emission intensity

Jian Tan; Huan Zhu; Chen Chen; Guiyuan Xue; Jing Shi; Jinmin Cheng

doi:10.1117/12.2684634

24 October 2023 Impact of distributed photovoltaic integration voltage levels on end-users carbon emission intensity

Jian Tan, Huan Zhu, Chen Chen, Guiyuan Xue, Jing Shi, Jinmin Cheng

Proceedings Volume 12804, Second International Conference on Sustainable Technology and Management (ICSTM 2023); 128040B (2023) https://doi.org/10.1117/12.2684634
Event: 2nd International Conference on Sustainable Technology and Management (ICSTM2023), 2023, Dongguan, China

Abstract

Power industry has largest coal consumption and carbon emissions in China. Real-time, accurate and comprehensive measurement of electricity carbon emissions is the basis and premise to explore the potential of electricity carbon emission reduction and guide the interaction of power users to reduce carbon emissions. It also provides the data basis to support the carbon market. Based on the theory of power system carbon emission flow analysis, this paper proposes a full-link carbon metering method for power system, which realizes "minute-level" real-time carbon metering and "user-level" carbon metering of power system carbon information at generation, grid and load sides. The impacts of different voltage levels on the carbon emission intensity of users are studied, and an empirical analysis is carried out based on the actual system operation data and load data of Changzhou City, Jiangsu Province, and the simulation results shows that the lower the voltage level of distributed photovoltaic access, the higher the proportion of local consumption, and the lower the carbon emission factor of local load. That is, distributed photovoltaic access to low-voltage grid makes local load power consumption be green. Compared with the low voltage level of photovoltaic access, the high voltage level of grid-connected will increase the carbon emission factor of the local load at the grid-connected point and weaken the effect of carbon reduction on the local load. Furthermore, changing the photovoltaic access voltage level will not affect the average carbon emission factor of the whole region.

Citation Download Citation

Jian Tan, Huan Zhu, Chen Chen, Guiyuan Xue, Jing Shi, and Jinmin Cheng "Impact of distributed photovoltaic integration voltage levels on end-users carbon emission intensity", Proc. SPIE 12804, Second International Conference on Sustainable Technology and Management (ICSTM 2023), 128040B (24 October 2023); https://doi.org/10.1117/12.2684634

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KEYWORDS

Carbon

Photovoltaics

Power grids

Transformers

Medium wave

Matrices

Power consumption

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