Temporal dimension - TIAM-UCL

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Model Documentation - TIAM-UCL

Corresponding documentation
Previous versions
Model information
Model link
Institution University College London (UCL), UK, https://www.ucl.ac.uk.
Solution concept Partial equilibrium (price elastic demand)
Solution method Linear optimisation
Anticipation Perfect Foresight

(Stochastic and myopic runs are also possible)

The model base year is 2005 with data taken from IEA Energy Balances.

The model time horizon is 95 years (2005-2100) with 5 year time steps up to 2070 and with 10 year time steps beyond. Each year is divided to six time slices + an additional peaking constraint.

Demand fractions (see Table 1.2) determine the fraction of service demand to be met during a specific period of the day in a given season (or timeslice).

The temporal resolution is determined by three seasons, summer, winter and intermediate. Each of the seasons accounts for a third of the whole year or 4 month. These timeslices are again split into night and day, where day represents 16 hours and night 8 hours (Table 1-2).

Therefore there a six timeslice possibilities of:

  • summer-day,
  • summer-night,
  • intermediary day,
  • intermediary-night,
  • winter-day,
  • winter-night

Table 1.2: Fraction of energy-service demands

Time slice Month share Day share Fraction
ID 0.333 (4 months) 0.666 (16 hours) 0.223
0.333 (8 hours) 0.111
SD 0.333 0.666 0.223
0.333 0.111
WD 0.333 0.666 0.221
0.333 0.111

The model is generally run with perfect foresight but can be run as myopic or stochastic though this is generally not the case.