Integration of large-scale wind power and use of energy storage in the Netherlands’ electricity supply
The use of energy storage for increased operational flexibility is commonly regarded as a logical complement for systems with large amounts of wind power. Taking into account the large investment costs, energy storage units are however unlikely to have a profitable exploitation. A notable result is that for the Dutch system, the use of energy storage increases the system’s overall CO2 emission levels because energy storage allows storing power from cheap coal plants for substitution of expensive gas during peak. Even though often proposed as a solution for wind power integration, energy storage in fact partly annuls CO2 emission savings by wind power.