By Plenary Sessions: Mario Kadastik

The speaker demonstrates a high level of expertise across the fields of energy, physics, and technical data, providing concrete figures for battery costs, the capacity of the Paldiski pumped storage facility, and the output of nuclear power plants. He/She particularly focuses on acoustics and infrasound, utilizing specific terminology (decibels, millipascals, 4 hertz, SBL) and addressing questions related to physiological processes. Furthermore, the speaker references technical solutions, such as *grid generating inverters*, underscoring their knowledge of grid technology.

The speaker demonstrates a high level of expertise regarding energy market mechanisms, particularly balancing capacities, frequency reserves, and financing methodologies. They utilize technical terminology (Balance Responsible Parties, congestion charges, megawatt-hour) and refer to specific data and market developments (the emergence of battery parks). This expertise relies on the analyses and positions of Elering, the Competition Authority, and the Ministry of Climate.

The speaker demonstrates deep technical and economic expertise regarding the functioning of the electricity market, repeatedly explaining the rules of the marginal market (marginal pricing market) and the complexity of recovering capital costs. Specific data is utilized (the price of CO2 quotas, the cost price of oil shale electricity at 130 EUR/MWh, a maximum subsidy rate of 200–250 million) and assessments are provided on the maturity and timeline of various technologies (nuclear power, geothermal, hydro).

The speaker demonstrates strong professional knowledge regarding the regulation of the taxi market and information society services, drawing on their previous experience as a business owner. This expertise is evident in the use of technical terminology (passenger transport license, vehicle card) and in the detailed understanding of the differences between insurance and mandatory inspection requirements.

The speaker demonstrates profound technical expertise in the fields of acoustics and physics, explaining the exponential nature of the decibel scale, the difference in sound intensity, and the influence of frequency. They utilize scientific data and analogies (e.g., 30 dB = 1000 times the intensity difference, 4 Hz frequency) to contextualize infrasound levels. This expertise also encompasses referencing scientific literature and studies (e.g., the Saarde wind farm).