Sizable Energy raised $8M led by Playground to commercialize its gigawatt-scale ocean energy storage using gravity and brine in a pumped hydro system.
Introducing the Ocean Battery—a groundbreaking energy storage system engineered to operate beneath the seabed, offering a sustainable solution for storing renewable energy.
We introduce a novel offshore pumped hydro energy storage system, the Ocean Battery, which can be integrated with variable renewable energy sources to provide bulk energy storage.
The StEnSea system is a submerged-beneath-the-sea adaptation of the classic pumped hydroelectric storage model. Each large concrete sphere is 30 feet in diameter, weighs 880,000
Germany''s Fraunhofer Institute has unveiled an innovative solution that taps into the power of the deep sea to store electricity – the StEnSea (Stored Energy in the Sea) project.
Sea-based energy storage offers a promising solution to energy challenges by leveraging oceanic resources, enabling enhanced grid stability, supporting renewable energy integration, and
A comprehensive review and comparison of state-of-the-art novel marine renewable energy storage technologies, including pumped hydro storage (PHS), compressed air energy storage (CAES),
Sizable Energy, a startup founded by engineers from nuclear, mechanical, and maritime backgrounds, has raised $8 million to accelerate the commercial rollout of its offshore pumped hydro
Here''s the thing – we''re not talking about plastering seabeds with batteries. Next-gen designs integrate storage into offshore wind foundations and tidal turbine arrays. The UK''s new "Energy Reef" concept
Sizable Energy has a plan to store excess renewable energy in flexible reservoirs out at sea. The startup has raised $8 million to test prototypes.
GreenVolt Home Energy is a leading energy storage equipment manufacturer and integrator based in Poland, serving the European market. We specialize in wall-mounted energy storage batteries, power distribution cabinets, generation-storage integration, hybrid inverters (PV & storage all-in-one), communication battery cabinets with IP54 protection, grid-forming energy storage, PV storage power plants, residential all-in-one storage, and VPP-ready systems. As a full‑service energy storage equipment manufacturer, we also provide containerised BESS, modular battery racks, backup emergency power, and zero‑carbon microgrids. Our advanced lithium‑ion and sodium‑ion solutions ensure safety, scalability, and high performance for residential, commercial, industrial, and utility projects across Europe.
Our modular energy storage portfolio ranges from compact wall-mounted energy storage batteries to 20ft/40ft mobile containers and outdoor all-in-one storage cabinets with IP54 protection. We are a leading energy storage equipment manufacturer, offering communication battery cabinets for 5G/telecom, server racks for data centers, and IP54 rated enclosures for harsh environments. Our stackable design allows flexible capacity expansion, while our grid-forming technology ensures stable off‑grid operation. Whether for off‑grid power systems, backup emergency power, PV+storage integration or large zero‑carbon parks, our products feature advanced thermal management, PCS and EMS integration, deep discharge cycling, and compliance with European and international standards. We also provide professional energy storage system installation and after‑sales support across Europe.