Articles tagged with "pumped-hydro"
Why Waiting on Grid Batteries Will Cost Ontario More Than Acting Now - CleanTechnica
The article discusses the urgent need for Ontario to adopt grid-scale battery storage now rather than delay, emphasizing that waiting will ultimately cost the province more. The author highlights that Ontario already has experience with grid storage through the Sir Adam Beck pumped hydro facility, which manages electricity time-shifting by storing excess energy and releasing it during peak demand. Unlike pumped hydro, batteries offer greater flexibility as they can be installed near transmission congestion points without geographic constraints. The key benefits of grid batteries are their ability to reduce electricity costs by increasing asset utilization—flattening peak demand and raising infrastructure use from 30-60% to 70-80%—and thereby lowering the amortized cost per kWh. Real-world evidence from Australia shows grid batteries saved about AUD 116 million in one year by cutting peak prices, providing frequency response, and avoiding costly network upgrades. The article also addresses safety and health concerns related to battery fires, noting that modern grid batteries use lithium iron phosphate (LFP) chemistries with lower
energygrid-batteriesenergy-storagepumped-hydroelectricity-gridpeak-demand-managementrenewable-energy-integrationMassive Energy Storage Project Greenlit For Brownfield
The article highlights the approval of the Goldendale Energy Storage Project in Washington State, a 1.2-gigawatt pumped hydro facility developed by Rye Development. This project, licensed for 40 years, repurposes a brownfield site—the former Columbia Gorge Aluminum smelter—and leverages existing infrastructure, including roads and transmission lines linked to the nearby Tuolumne Wind Farm. Designed as a closed-loop system, the facility will provide 12 hours of zero-emission electricity storage, addressing the region’s anticipated 30% increase in electricity demand over the next decade. The project is expected to create 3,000 construction jobs over 3-5 years and contribute $10 million annually to local county revenues for schools and civic infrastructure. Pumped hydro remains the dominant form of utility-scale energy storage in the U.S., accounting for about 95% of capacity, due to its proven technology, relatively quick construction timelines, and environmental advantages compared to other storage types. The U.S
energyenergy-storagepumped-hydrorenewable-energylong-duration-storagegrid-capacityclean-energyPumped Hydro Energy Storage Is Having a Renaissance
The article highlights a renewed interest and innovation in pumped hydro energy storage as the world integrates more renewable energy sources into power grids. Pumped hydro, a technology dating back centuries, stores energy by moving water between reservoirs at different elevations to generate electricity when needed. Traditionally reliant on large reservoirs and high elevations, the technology is now being reimagined to better suit modern grid demands, particularly to balance the variability of wind and solar power. A key example is RheEnergise, a British company developing a novel system using a mineral-based fluid denser than water, allowing energy storage in smaller spaces and at lower elevations. Their demonstration plant near Plymouth, England, uses this fluid to drive turbines and store energy more efficiently, potentially unlocking thousands of new viable sites for pumped hydro globally. This renaissance in pumped hydro is driven by the urgent need to reduce wasted renewable energy—such as the UK's £1 billion loss from curtailed wind power in 2024—and to provide flexible, rapid-response grid balancing. The
energypumped-hydroenergy-storagerenewable-energygrid-managementhydroelectric-powerenergy-innovationOne startup’s quest to store electricity in the ocean
The article profiles Manuele Aufiero and his startup, Sizable, which aims to revolutionize energy storage by adapting pumped hydro technology for offshore use. Pumped hydro, a century-old method of storing electricity by moving water between reservoirs at different elevations, currently accounts for a significant portion of global energy storage. However, traditional pumped hydro requires site-specific concrete dams, limiting scalability and deployment. Sizable’s innovative approach uses two sealed, flexible reservoirs—one floating on the ocean surface and one on the seabed—connected by a tube and turbines. By pumping super salty water upward when electricity is cheap and releasing it to generate power when demand is high, the system effectively lifts and lowers a heavy salt solution to store and release energy. Sizable has tested prototypes in wave tanks and off the coast of Italy and plans to deploy pilot projects ahead of commercial-scale plants by 2026. Each turbine is expected to generate 6 to 7 megawatts, with multiple reservoirs per site enabling significant storage capacity
energyrenewable-energypumped-hydroenergy-storageoffshore-energyclean-energyenergy-innovationTwo New Renewable Energy Technologies That Just Might Work - CleanTechnica
renewable-energyenergy-storagepumped-hydroocean-energyFraunhoferStEnSeaclean-technologyGetting Big Batteries (BESS) & Pumped Hydro (PHES) to Play Well Together
energybatteriespumped-hydrorenewable-energyenergy-storagegrid-managementbattery-technology