Simulation of alternative regulations in the Colombian electricity market

The deregulation of the Colombian electricity system took place in 1994 and the pool started operations in 1995. The Colombian system adopted a capacity charge mechanism to increase incentives to invest in new capacity. The capacity charge was showing strength, and apparently driving investments during the initial years. However, the mechanism started to exhibit weaknesses in terms of transparency and disincentives, causing a negative effect on investments. Different authors have presented alternative regulatory options to update the system. A non-standard system dynamics approach to evaluate alternative regulation schemes for the Colombian electricity market is proposed. A specific regulation problem is undertaken to illustrate the proposed methodology. It shows how the capacity charge mechanism, which has been used for reliability purposes, might be changed for alternative schemes. The proposed transformations to the actual regime seem to overcome some of its drawbacks. Simulation results indicate these alternatives improve the general system behaviour. In addition, the underlying model has been used afterwards for other energy policy purposes.