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Nordic TSOs prioritize dynamic FCR-D

The Nordic TSOs are prioritizing dynamic FCR-D resources and will significantly limit the amount of static FCR-D resources going forward. Svenska kraftnät notes: “There is a strong correlation between the acceptable amount of static FCR-D and the amount of rotational energy (inertia) in the electric system.”

The exact amount of static FCR-D to be allowed depends on the inertia/rotational energy in the system. Svk notes that two criteria will drive how much static volume is allowed in the market:

1. A maximum % limit of static FCR-D volume based on the total Nordic demand that is available during the year, and
2. A variable volume limit % that is dependent on the inertia/rotational energy in the system.

Initially, the amount of static volume will be limited to 50% of the total volume for FCR-D (up) and a similar decision is expected for FCR-D (down). Beyond this, when inertia/rotational energy is low then even less static volume will be allowed.

Mathias Herbert Rui of Flextools notes: “We welcome this decision by the Nordic TSOs. It is clear that dynamic FCR-D resources are far more valuable for grid stability. We only qualify batteries and other resources for customers that qualify for dynamic FCR-D.”

⚡ Asset owners should reach out to Flextools for more information about how to qualify hashtag#BESS or other hashtag#flexible resources for FCR-D dynamic.

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