SpringCycle develops seasonal-scale energy storage systems that use rechargeable iron fuel to transform solar power into clean baseload electricity. The company's technology cuts the cost of storage capacity by over 20 times compared to the current industry frontier, targeting applications in utility-scale firm power and baseload supply for data centers, EV charging, and manufacturing.
Funding
Funding not disclosed
Founders
Product
Problem
Renewable energy sources like solar are intermittent, producing power only when the sun shines, which prevents them from serving as reliable baseload power. Existing battery storage solutions are too expensive for seasonal-scale storage, leaving utilities and large energy consumers dependent on fossil fuels for consistent, round-the-clock electricity. This gap in affordable long-duration storage hinders the transition to a fully renewable grid.
Solution
SpringCycle provides a seasonal-scale energy storage solution that uses iron as an ultra-low-cost, rechargeable fuel. The technology stores energy by converting iron to iron oxide and releases it by reducing the oxide back to iron, releasing heat that is converted back into electricity. This approach cuts the cost of storage capacity by more than 20 times versus current industry-leading technologies. By storing solar energy for weeks or months, SpringCycle enables clean power to be dispatched as baseload, comparable in cost to gas or coal. The system is designed to integrate at utility scale while also supporting large commercial and industrial loads.
Target Audience
SpringCycle targets utility-scale power generators and large energy consumers, including data centers, EV charging networks, and manufacturing facilities that require reliable, low-cost baseload electricity.
Features
- Rechargeable iron fuel cycle enabling long-duration, seasonal-scale energy storage
- Storage capacity cost reduction of greater than 20x relative to the current industry frontier
- Baseload power output capable of displacing gas- or coal-fired generation on cost
- Scalable architecture designed for utility-scale firm power and large industrial applications