Inducing truthful revelation of generator reliability

March 18, 2017 | Journal Article

Authors: Mel Devine , Muireann Á Lynch
Energy Economics ,


New capacity payments mechanism introduced

Mechanism design approach based on declaration of generation firms’ reliability

Reduced consumer costs and truth-telling of reliability levels induce

Stochastic Mixed Complementarity Problem to model electricity market


Liberalised electricity markets often include a capacity remuneration mechanism to allow generation firms recover their fixed costs. Various de-rating factors and/or penalties have been incorporated into such mechanisms in order to reward the unit based on the contribution they make to system security, which in turn depends on the unit’s reliability. However, this reliability is known to the firm but not to the regulator. We adopt a mechanism design approach for capacity payments based on a declaration by the firm of their reliability. The mechanism scales payments and penalties according to this declared reliability such that the firm’s profit-maximising strategy is to truthfully reveal its reliability. A stochastic Mixed Complementarity Problem (MCP) is used to model the interactions between the firms, and we apply this methodology to a test system using Irish electricity market data. Truth-telling is induced, increasing the efficiency of capacity payments while eliminating the requirement for the regulator to allocate resources to discovering reliability.

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  • Publication Details

    Journal Article

    ESRI Series Number: 201706
    Research Area: Energy and Environment
    Date of Publication: March 18, 2017
    Published Online: March 18, 2017
    Publisher: Elsevier
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