The processes included in the ecoinvent database represent
in most cases the average of technology in operation today
(e.g. average of European oil refineries in operation in year
2000). In a few cases the average of technologies offered on
the market today (e.g. gas boilers offered on the Swiss market
in year 2000), the best available technology (e.g. gas
combined cycle power plant), or even near future best available
technology (e.g. photovoltaic cells, low-sulphur fuels)
are modelled additionally.