I-SEM

  • Press Releases

    SEM one year on | Analysing market volatility since go-live

    The beginning of October marked the first anniversary of the new Irish and Northern Irish Single Electricity Market (SEM).  Already there is a marked change from its predecessor with the day-ahead electricity market in the SEM seeing significant volatility during its first year. In fact, findings from Cornwall Insight show...

  • Press Releases

    Cornwall Insight Ireland comments on the proposed increase to Imperfections Charge

    A proposed increase to the Imperfections Charge* (and Incentive Outurn) has been discussed in a consultation paper that has been issued by the SEM Committee (SEMC). This was in response to the transmission system operator’s (TSO’s) submission – where they proposed an increase of 53% on the 2018-19 tariff year...

  • Press Releases

    Gas proxy still relevant in SEM

    Historically, gas prices in Great Britain have largely influenced hedging strategies in the Irish Single Electricity Market (SEM), acting as the proxy commodity of choice. A proxy hedge involves using one commodity in another market with prices that are closely correlated. GB gas prices are chosen due to its inherent...

  • Press Releases

    Cornwall Insight Ireland’s analysis of the high pricing in the Balancing Market

    On 24th January the balancing market recorded the highest price since ISEM went live, at €3774/MWh, this was more than double the previous high the market had recorded. This resulted from SONI (System Operator in Northern Ireland) issuing an amber alert due to generation losses in NI. The alert was...