Transmission capacity and renewable generation do not match

03.11.2020

The Austrian transmission system operator (TSO) APG has been monitoring the development of the electricity market since the beginning of the corona crisis and regularly publishes charts on topics such as energy exchange, electricity consumption in Austria and Europe, or electricity imports and exports. A look at the September charts of the TSCNET shareholder reveals, on the one hand, the strong role that renewable energies are already playing in Austria and have also continued to play during the pandemic. On the other hand, this particularly good generation from hydropower, wind, and photovoltaic plants could not be fully exploited due to the lack of transmission capacity.

“The streamflow of the Danube accounts for the majority of the run-of-river hydroelectricity generation, which this year has ranged 40 percent above the longtime average on several days. This is the reason why Austria is currently still able to export electricity,” explains Thomas Karall, CFO of APG. However, the insufficient use of renewable energies is also evident from the statistics of APG, especially regarding redispatch. Until the end of September, redispatch measures had to be carried out almost daily. This resulted in costs amounting to around €103m. „This figure shows the importance of the timely realisation of grid expansion and renovation measures – in particular of the Salzburg Line”, concludes Karall. The Salzburg Line (“Salzburgleitung“) is currently APG’s most important infrastructure project and crucial for the integration of renewables.

The September energy charts of APG show solid renewable generation and insufficient transmission capacity (picture showing the Austrian hydroelectric power station Gössendorf in the south of Graz: Eduard Aldrian)

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> See APG press release (html)
> Visit APG infographics site (html)