Temporal dimension - TIAM-UCL

Model Documentation - TIAM-UCL
Corresponding documentation
AIM-Hub BLUES C3IAM COFFEE-TEA DNE21+ GCAM GEM-E3 GRACE IFs IMACLIM IMAGE MESSAGE-GLOBIOM POLES PROMETHEUS REMIND-MAgPIE TIAM-UCL WITCH WITNESS
Previous versions
Archive of TIAM-UCL version 3.1.5
Model information
Model link	https://www.ucl.ac.uk/energy-models/models/tiam-ucl
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
IN		0.333 (8 hours)	0.111
SD	0.333	0.666	0.223
SN		0.333	0.111
WD	0.333	0.666	0.221
WN		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.