search

OSeMOSYS / OSeMOSYS

OSeMOSYS - the Open Source Energy Modelling System
http://www.osemosys.org
Apache License 2.0
156 stars 105 forks source link

Investment Activity Ratios? #96

Open tniet opened 5 years ago

tniet commented 5 years ago

In some cases there could be requirements for inputs to be able to build a technology. For example, for a hydro dam, you need to convert an area of land to an area of water body. Implementing something like this would make CLEWS type analyses more effective and enable the model to account for these types of land use changes (solar is another example). This could be similar to a fixed and capital cost, but then be a fixed and capital InputInvestmentActivityRatio (and maybe an output version as well, if there are similar changes when decommissioning a plant).

vignesh1987 commented 5 years ago

Hi Taco, Can this not be done using the current input activity ratio? or you are suggesting to have a fixed land capacity that is added/subtracted automatically when a power plant capacity is introduced/decommissioned? Another use of such an addition would be to account for the water lost to evaporation from dams (as it is proportional to the surface area), which could be trivial in a river-basin/country level study. But, it becomes substantial when we analyse a small watershed (etc.)

tniet commented 5 years ago

Hi Vignesh - Yes, in our CLEWs modelling we have a fixed land area available, and when a large hydro dam is built, this should be included in the land use that is available for other uses. So the current IAR doesn't allow that change in land use to be included as it is per unit of energy produced, not per area of reservoir. And, as you note, the evaporation for a reservoir doesn't depend on the amount of energy it generates, but only on the 'installed' land area. I think there's a few directions that this could take, but it's good to have started the discussion.