Data Retrieval and Data Sources

Power Efficiency Guide

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A PCF is a summation of the individual contributions from its production chain or its total life cycle. We can distinguish between data from publicly available sources (secondary sources), from approximations and analogies, and from detailed calculations of the specific situation (primary sources). The method must be chosen according to the scope and the relevance of the contribution. If we consider a footprint for a chemical intermediate with intensive energy consumption supplied by an on-site power plant, it can make sense to model the specific power plant in detail to calculate the carbon footprint of the respective energies. However, if the energy consumption is of minor relevance it is appropriate to use a value delivered by the energy supplier or a region specific value for electrical power from the grid.

Furthermore we need to pay attention to consistency if data from different sources is used.

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Guide to Alternative Fuels

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