HYBRID RENEWABLE ENERGY SYSTEMS SPRINGERLINK

Finland hybrid compression energy storage project
Thanks to technological advances, developer SENS has been able to increase the capacity of the BESS component of its innovative hybrid pumped hydro-BESS project, located at Pyhäsalmi mine in Finland. The cluster comprises a 75 MW underground pumped storage hydroelectric (UPHS) facility and a BESS. [pdf]FAQS about Finland hybrid compression energy storage project
Is energy storage a viable solution for the Finnish energy system?
This development forebodes a significant transition in the Finnish energy system, requiring new flexibility mechanisms to cope with this large share of generation from variable renewable energy sources. Energy storage is one solution that can provide this flexibility and is therefore expected to grow.
What is the future of energy storage in Finland?
Reserve markets are currently driving the demand for energy storage systems. Legislative changes have improved prospects for some energy storages. Mainly battery storage and thermal energy storages have been deployed so far. The share of renewable energy sources is growing rapidly in Finland.
Which energy storage technologies are being commissioned in Finland?
Currently, utility-scale energy storage technologies that have been commissioned in Finland are limited to BESS (lithium-ion batteries) and TES, mainly TTES and Cavern Thermal Energy Storages (CTES) connected to DH systems.
Is the energy system still working in Finland?
However, the energy system is still producing electricity to the national grid and DH to the Lempäälä area, while the BESSs participate in Fingrid's market for balancing the grid . Like the energy storage market, legislation related to energy storage is still developing in Finland.
How can a Finnish energy system be modeled?
The energy system could be modeled with a tool such as EnergyPLAN, considering the effects of a much larger share of RES in the Finnish energy system and the need for flexibility from ESSs. In collaboration with this study, a survey was conducted among the Finnish BRPs about their views and needs regarding ESSs.
Can PHS be used as energy storage in Finland?
Plans exist for PHS systems, but studies have indicated that there may be few suitable locations for PHS plants in Finland [94, 95]. While large electrolyzer capacities are planned to produce renewable hydrogen, only pilot-scale plans currently exist for their use as energy storage for the energy system (power-to-hydrogen-to-power).

Cambodia Hybrid Energy Storage Project
The newly completed 12MWh energy storage project, which was developed in collaboration with SchneiTec, a renewable energy developer, features a 2MWh testbed designed to validate Huawei’s Smart String grid-forming energy storage technology. [pdf]