Cradle to Gate
Identity ID
6bb1bd5e-6cc9-4eed-94ab-1a4c7adcb848
Energy
Associated ID
f9f11318-8a37-4778-8067-47acb668f7ed
Included activities starts
Included activities ends
Description
This dataset represents the average power generation situation of large pumped storage power stations (installed capacity ≥300 MW) in China. Its data are obtained by weighted aggregation of the production datasets of Jiangsu, Hebei, Shanxi, Shandong and other provinces (regions, municipalities). A pumped storage hydropower station is a hydropower station that uses electricity during off-peak load periods of the power grid to pump water from the lower reservoir to the upper reservoir for energy storage, and releases water back to the lower reservoir to generate electricity during peak load periods of the power grid; its main difference from reservoir-dam type hydropower stations in modelling lies in the number of reservoirs. For the production datasets of specific regions, the greenhouse gas (mainly for CO2 and CH4) emissions over the reservoir life cycle are estimated based on the Tier 1 method of the National Greenhouse Gas Inventory Guidelines (2019 revision), and the emission factors are adjusted according to the local climate zone and the reservoir age. The hydropower station parameters are set according to design specification standards, namely the technical service life of small hydropower projects is 30 years, that of medium hydropower projects is 50 years, and that of large hydropower projects is 100 years. The data are mainly sourced from official statistical data.
Activity Description
The system boundary covers the entire operation and maintenance stage of pumped-storage power plants, including pumping water from the lower reservoir to the upper reservoir, releasing water from the upper reservoir to drive the turbines and generate electricity, and routine equipment maintenance.
Process Description
The product is grid-connected power in kWh, with a voltage level of ≥35 kV.
Time period
2022
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
A pumped-storage hydropower station is a hydropower station that uses electricity from the power grid during low load periods to pump water from the lower reservoir to the upper reservoir to store energy. When the power grid reaches peak load, the water is released back to the lower reservoir to generate electricity. The main difference from the modeling of storage dam-type hydropower stations is the number of reservoirs. The installed capacity range of large pumped storage power stations is ≥300 MW. Hydropower station parameters are set according to design specifications and standards, that is, the technical service life of small hydropower station projects is 30 years, the technical service life of medium-sized hydropower station projects is 50 years, and the technical service life of large hydropower station projects is 100 years.