SCI Spec - Submitted question

From Hallie Cramer - Google

If the electricity consumption is connected to a grid, the short run marginal, long run marginal, or average emissions grid intensity of that grid shall be used" - it appears this is being used to refer to how to calculate an SCI score, which may be different than "carbon-aware: attribute of software or hardware that adjusts its behavior (consumption of inputs, processing, or production of outputs) in response to the carbon intensity of the energy it consumes". I bring this up as an area of confusion because the SCI score, a calculation of the carbon intensity of a software, I would interpret as "attributing" emissions to the software, for which it is very standard practice to use an average emissions factor. A marginal emissions factor is generally used as a proxy to measure the change in emissions with an incremental change in energy, which may be more relevant as a signal for being "carbon-aware", but would still say there is no consensus around which signal is best, so it makes sense to leave options.