Berlin – As is traditional for the 50Hertz EEG-Conference, this year the participants once again discussed the developments surrounding the Renewable Energy Sources Act that are relevant to energy policy. This included the amendment to the Combined Heat and Power Act for 2020 and the current state of the smart meter rollout. The focus of this year’s event, which also provided the title for the panel discussion, was the integration of renewable energy facilities into the grid congestion management: the so-called Redispatch 2.0. The most recent amendment to the Grid Expansion Acceleration Act (NABEG) paved the way for this integration. Ever since, grid system operators can, in case of grid congestion, also fall back on renewable energy and CHP facilities in the scope of the redispatch process (i.e. curtailing power stations before the congestion and ramping up power stations beyond the congestion).
“Redispatch with renewable energy (RE) is not only more advantageous than the conventional regime, but also reinforces system security through energy balancing. Pure RE curtailment does not have that effect. The amendment in the NABEG creates the opportunity to travel new roads and establish innovative methods,” said Dr Dirk Biermann, 50Hertz’s Chief Markets and System Operations Officer. In the past, the correction of one problem, namely congestion, led to another: Imbalance. “We know that a strong grid with demand-based development and an optimal load is the foundation for the energy transition. To ensure this, we have to establish technically wide-ranging innovations,” Dr Biermann continued.
Before the amendment, no targeted energy balancing by the grid system operators was defined and therefore no conventional facilities were ramped up beyond the congestion, the energy missing in the system balance had to be provided by means of control power.
135 guests attended this year’s tenth EEG Conference, organised by transmission system operator 50Hertz. The attendees included representatives from transmission and distribution system operators as well as authorities, associations and companies from the electricity generation, marketing and trade sectors.
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