Process information
| Key Data Set Information | |
| Location | NJ-JS-CN |
| Geographical representativeness description | The authors did not specify in the literature that the geographic location of the electric utility where the authors are located was selected |
| Reference year | 2021 |
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| Use advice for data set | Users of this LCA data set should ensure they apply it specifically to the construction and operation of indoor medium to high voltage substations, especially those employing environmentally friendly technologies such as non-SF6 GIS. Care should be taken when extrapolating this data to ensure regional specificities, such as local carbon emission factors and technological applicability, are properly accounted for. For construction phase modeling, aspects like the planned number of transformers, busbar configuration, type of switchgear, and inclusion of shunt capacitors and reactors should be reflected. The service life assumed should be verified for alignment with the 50-year validity period used in this data set. During operation phase assessment, consideration of the environmentally friendly products and absence of SF6 equipment alongside operational inputs/outputs should be included. Users must obtain more recent and location-specific emission factors as part of their LCA study. |
| Technical purpose of product or process | The 110/10kV 3×50MVA substation described is designed to support medium to high voltage electricity transmission and distribution for urban developments or industrial areas. It is used to transform the voltage from high transmission levels to levels suitable for distribution and end use. The full indoor arrangement implies that all the equipment is housed within a building, offering additional protection from the environment. This substation is also equipped with environmentally friendly GIS (Gas Insulated Switchgear) systems that do not use SF6, a potent greenhouse gas, making it suitable for regions with stringent environmental regulations. |
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| General comment on data set | The literature adopts the method of life cycle calculation of carbon footprint, specifies the carbon emission sources in the four stages of the life cycle of this 110kV substation scheme: the preparation stage, the construction stage, the operation stage and the end-of-life stage, determines the carbon emission factors and engineering data, and calculates the carbon footprints of each stage. |
| Copyright | No |
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| Quantitative reference | |
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| Time representativeness | |
| Data set valid until | 2071 |
| Time representativeness description | The starting time of the dataset was not specified in the literature, and the time of publication of the literature was used as the beginning of the validity period. The lifetime of the project was recorded as 50 years, so 50 years was used as the validity period. |
| Technological representativeness | |
| Technology description including background system | Construction phase: 2×50 MVA transformers will be built in this phase. 110 kV outgoing line 4 times in this phase (including two backup), vision 4 times; this phase adopts single bus sectional wiring, vision wiring type unchanged; fluorine-free environmentally friendly GIS. 10 kV outgoing line 24 times in this phase, adopts single bus three-section wiring; vision 36 times, adopts single bus four-section wiring; adopts the center cabinet, with a vacuum circuit breaker. Each of the two main transformers in this phase is equipped with one set of 4 Mvar shunt capacitor and one set of 6 Mvar shunt reactor. There is a steel structure power distribution building, which is partially one floor underground and partially two floors. According to the planning requirements, the enclosure wall is not set up as a solid enclosure wall, and green plants are used to isolate the site, and the site is laid with lawn. Operation stage: environmentally friendly new products are adopted, no SF6 electrical equipment is used in the station, green plants are used to isolate the station, and lawn is laid on the site. |
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Modelling and validation
Administrative information
Inputs and Outputs