Financing for the EUR-180-million (USD 208.8m) Sirius battery energy storage system (BESS) was extended by a consortium of lenders comprising ING, NatWest, Deutsche Bank, ABN AMRO and Rabobank. The funding is part of an up to EUR-400-million framework supporting Return’s wider BESS portfolio.The Sirius battery will be installed in Winschoten, Groningen, and will connect to a substation owned by transmission system operator (TSO) TenneT. It is planned to become operational in the last quarter of 2027, operating under a time-dependent transmission rights (TDTR) agreement with the TSO. Under a long-term deal with a fixed price, Vattenfall will get access to the facility's charging, storage and power delivery capacity and balance its wind and solar power generation and TenneT’s grid.According to Return, the deal with Vattenfall will be the largest fixed-price battery storage tolling agreement in the Netherlands to date. The contract builds on a partnership for Return’s 100-MW Antares battery in the Dutch town of Waddinxveen, for which Vattenfall is managing half of the capacity.(EUR 1.0 = USD 1.160)
Return taps Vattenfall for tolling at 200-MW newly-funded Dutch BESS
Energy storage provider Return today said it has achieved financial close on a 200-MW/800-MWh battery storage project in the Netherlands and contracted Swedish utility Vattenfall to manage the capacity.
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