development master plan Aug 2021

[cchrisgong]

• Remaining main tasks for single-region coupling, i.e. the "basics": flexible green H2 demand (this I am currently working on), storage (seasonal and diurnal), adding wind offshore to coupling, adding geothermal to DIETER(?), DSM (optional, long term vision), PtX (optional, long term vision).

• Tasks for multi-region coupling (after above basics are done more or less): expanding coupling to other regions in REMIND (for which we need to generate hourly data for regions where there are none available). Currently I have only tested for DEU and USA, other regions need to be tested and validated. There is also work to be done on power trading together with Renato and Philipp (turning on transmission in DIETER), this depends to some degree also on Philipp's progress with improving trade in REMIND.

• Computational performance can be improved: such as combining the GAMS compilation of DIETER with that of REMIND to save on compilation time (Renato has some ideas on this). Make DIETER's input data handling easier and more elegant.

• Sensitivity analysis: e.g. removing some chunk of hydro output some years, taking into account of more frequent droughts as climate warms. (And other variations that we think are important.)

• Sector coupling with detailed demand sectors (like EDGE-industry, EDGE-building, EDGE-transport). So far only simple demand sectors have been tested.

• We can always add some newer technologies to one or both models (but we should discuss with the group and read more literature to assess their potentials first, to see if they are worth of the hypes): e.g. advanced geothermal, thorium nuclear plants, sodium ion batteries, etc.