When to use market

Question

Hi,

I want to change the provider for some inputs flow from an existing ecoinvent dataset below, because I want to model it based on another country, for example, from RER to CN.

photovoltaic panel production, multi-Si wafer | photovoltaic panel, multi-Si wafer | Cutoff, U

Example, for tempering, flat glass input flow, there are three provider option given:

1)tempering, flat glass | tempering, flat glass | Cutoff, U - RER

2)tempering, flat glass | tempering, flat glass | Cutoff, U - ROW

3)market for tempering, flat glass | tempering, flat glass | Cutoff, U - GLO

I've read about market dataset in ecoinvent website, but in this case, i'm a bit confuse whether to use option 2 or 3 to model photovoltaic panel production in CN. 

I use ecoinvent 3.5 cutoff up regionalised, openLCA 1.8

Thank you.

Answer 1

Hi! As you will see, the global market for flat glass tempering in ecoinvent is simply 1/3 European and 2/3 rest of world; since China is not Europe, I would use rest of world here if you do not have the chance to model the process yourself.

Comments

Of course you need to decide this flow by flow, but for the case we discussed it is good to add transport, in t*km, with the distance from China.