electricity production, deep geothermal, UPR, ecoinvent 3.6, Undefined
Location: JP - Japan
This data set is based on a data set comprised in the book 'Energy from the earth'. (see field 'published source' for more details). The inventory reflects the conditions for amounts with the reference flow of “1 kWh electricity, high voltage”. This inventory includes the following elements:
• Yearly losses of the working fluid of 8% are taken into account
• “Amount” of geothermal plant needed per 1 kWh calculated from the cumulative lifetime electricity production
The inventory does not consider the possibility of leakage of geofluid to an aquifer layer. This is not considered to be normal operation (see published source, WP5 “Risks”, Section 184.108.40.206 “Geofluids”). The inventory reflects Swiss conditions, used as first approximation. Uncertainties adjusted accordingly.
Undefined unit processes (UPRs) are the unlinked, multi-product activity datasets that form the basis for all of the system models available in the ecoinvent database. This is the way the datasets are obtained and entered into the database by the data providers. These activity datasets are useful for investigating the environmental impacts of a specific activity (gate-to-gate), without regard to its upstream or downstream impacts.