Novel long-term electricity storage technologies for flexible hydropower - STORE2HYDRO

STORE2HYDRO的首要目标是引入一种与现有水力发电相结合的新思维方式。通过改造可逆泵式水轮机技术，对现有水电设施进行相对较小的调整，将使欧洲的电力储存能力增加22TWh/年或更多。该目标将通过以下方式实现：i) TRL4-5的经过验证的创新机械解决方案，用于在现有的高水头水库到水库（RtR）和低水头河流（RoR）水力发电设施中进行大规模抽水蓄能，持续时间更长。ii)绘制欧洲未开发的水电资源，用于长期电力储存，提高能源储存解决方案的可用性、稳健性和安全性。这些新技术将使运营商能够以比目前更高效、更经济、更灵活的方式运行水电站，同时也适应能源系统。这是在不改变水库/河流的调节高度或容量的情况下，遵循欧洲绿色协议的优先事项。此外，涡轮机制造商可以引入新的组件，以节省成本的方式改造抽水蓄能。该技术将通过详细的LCA进行验证，并考虑潜在未来工厂的资本支出和运营成本。第一个创新是基于独特的设计解决方案，可改装可逆泵涡轮技术，使经济有效的解决方案无空化，增强灵活性，减少损失。第二个创新是由数字双胞胎实现的，包括抽水蓄能的水力和泥沙动力学。这些工具提供了关于当前存储状态的详细信息，增加了现有RoR和RtR系统中电力机械存储的可用性和稳健性，以适应例如风能和太阳能间歇性发电的预测。实际上，这将意味着在现有的水库和河段中储存新的电力。

The overarching aim of STORE2HYDRO is to introduce a new mindset for storage of electricity in connection with existing hydropower. Relatively small adjustments to existing hydropower facilities by retrofitting reversible pump turbine technology would allow the European electricity storage capacity to increase by 22TWh/y or more. The aim will be achieved by: i) Validated innovative mechanical solutions to TRL4-5 for larger-scale pumped, longer-duration storage of electricity in existing high head Reservoir-to-Reservoir (RtR) and low head Run-of-River (RoR) hydropower facilities. ii) Mapping untapped hydropower sources for long term electricity storage in Europe increasing the availability, robustness and safety of energy storage solutions. The novel technologies will enable the operators to run hydropower stations in a more efficient, cost effective and flexible manner than today also adapting to the energy system. This is without changing the regulating heights or volume of the reservoir/river reaches following the European Green Deal priorities. Also, turbine manufacturers can introduce new components for cost-effective retrofitting of pumped storage. The technology will be validated with detailed LCA and by consideration of CAPEX and OPEX of potential future plant. The 1st innovation is based on unique design solutions for a retrofittable reversible pump turbine technology enabling a cost-effective solution free of cavitation, enhanced flexibility, and reduced losses. The 2nd innovation is enabled by digital twins including hydraulic and sediment dynamics for pumped-storage. These tools give detailed information about the status of the current storage increasing the availability and robustness of the mechanical storage of electricity in existing RoR and RtR systems adapting to, for example, predictions of generation of intermittent electricity from wind and solar. Practically this will imply new storage of electricity in existing reservoirs and river stretches.