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

STORE2HYDRO的总体目标是引入一种与现有水电相关的电力储存的新思维。通过改造可逆式水泵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。这一目标将通过以下方式实现：i)TRL4-5经过验证的创新机械解决方案，用于现有高水头水库(RTR)和低水头径流(ROR)水电设施中更大规模的抽水发电、更长时间的电力储存。2)为欧洲的长期电力储存绘制未开发的水电来源地图，提高能源储存解决方案的可用性、稳健性和安全性。新技术将使运营商能够以更高效、更具成本效益和更灵活的方式运营水电站，而不是像今天这样适应能源系统。这是在不改变水库/河流到达的调节高度或流量的情况下，遵循欧洲绿色协议的优先事项。此外，涡轮机制造商还可以引入新的组件，以经济高效地对抽水蓄能设备进行改造。该技术将通过详细的LCA和考虑潜在未来工厂的资本支出和运营成本进行验证。第一项创新基于可改装的可逆泵水轮机技术的独特设计解决方案，实现了无汽蚀、增强灵活性和降低损失的经济有效的解决方案。第二项创新是由数字双胞胎实现的，包括抽水蓄能系统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，提高了现有RoR和RTR系统中机械存储电力的可用性和稳健性，以适应例如对风能和太阳能间歇发电的预测。实际上，这将意味着在现有的水库和河流段中新的电力储存。

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.