COVID-19 lockdown and market power in the Italian electricity market

The impact of COVID-19 measures on intraday electricity load curves in the European Union: A panel approach

“…In the Iberian electricity market, although prices fell on average, the drop did not reflect the scale of the decline in demand [32] . In Italy, market power on both the demand and supply sides weakened during peak hours; however, for off-peak hours and emergency periods, the zonal Lerner index shows an increase in market power [33] . Somewhat surprisingly, renewable production has also been affected by the pandemic.…”

Assessing the Effects of Market Power on Electricity Reliability in China: Toward a Green and Reliable Market

“…Rostamnia and Rashid (2019) assess the effects of power extent on pricing in the electricity market. Bigerna et al (2021) discuss the exercise of market power during the COVID-19 lockdown period and find an increase in market power on both supply and demand in the Italian Power Exchange. However, only a few researchers have paid attention to market power of grid companies in China's electricity industry.…”

Market power monitoring and mitigation mechanism of spot market under new power system

“…Currently, there is an international consensus on the importance of introducing market power monitoring and mitigation mechanism to the power spot market. Lakić et al presented detailed introduction of the concept, the exercising approaches and the detection methods of market power [4]; GRAF et al elaborated the market regulation structure and market power monitoring and mitigation system of typical American electricity market [7]; Guo et al proposed a mitigation method based on bidding capacity control for the quoting behavior of generators [8]; Salarkheili and Foroud proposed a market power evaluation framework of power generators based on the supply equilibrium function model [9]; Moiseeva, Hesamzadeh and Biggar analyzed the market power exercising of flexible sources with a high ramp rate [10]; Shafie-khah, Moghaddam and Sheikh-El-Eslami put forward a new type of market power control model and research framework based on the profit analysis of implicit and explicit collusion [11]; Bigerna et al analyzed the correlation between the intensity of the social control and the strength of the market power and the change of the electricity price, on the basis of the variation of the supply & demand situation of the Italian power market during the Covid-19 pandemic [12]. Among Chinese scholars, multiple literature summarize the organization structure and market power monitoring and mitigation methods in typical power markets [5,13,14]; Xue et al proposed the concept of generalized congestion and generalized market power, and emphasized the great importance of introducing regulation institution to guarantee the competitiveness and operational efficiency of the electricity market [15].…”