TerraStor
Grid-scale Energy Storage for a Carbon-Free Future
2 employees · est. 2021 · Fort Worth, United States
Powerphase International is the older company (2011 vs 2021); Powerphase International is the larger of the two.
1 signal in the last 90 days
Side-by-Side Comparison
| Metric | Powerphase International | TerraStor |
|---|---|---|
| Founded | ||
| Founded | 2011 older | 2021 |
| Headquarters | ||
| Headquarters | Jupiter, United States | Fort Worth, United States |
| Employees | ||
| Employees | 12 larger | 2 |
| Industry | ||
| Industry | Energy, Oil and Gas | Energy, Energy Storage |
| Funding Stage | ||
| Funding Stage | Series A | Seed |
| Total Funding | ||
| Total Funding | Not tracked yet | Not tracked yet |
| Funding Rounds | ||
| Funding Rounds | Not tracked yet | 1 |
| Services | ||
| Services | Turbophase air injection systems, Fastlight energy storage solutions, Efficiency and capacity upgrades for gas turbines, Maintenance-free turbine enhancements | Developing grid-scale, long-duration energy storage systems, Deploying advanced compressed air energy storage technology, Creating large-scale mechanical batteries |
| Target Customers | ||
| Target Customers | combined cycle power plant operators, grid and fleet operators, industrial parks looking to scale power efficiently, energy companies seeking low carbon solutions | Electric grid operators, Renewable energy projects, Utilities seeking carbon-free energy solutions |
| Taxonomy | ||
| Taxonomy | Not tracked yet | Grid-scale Energy Storage, Long-duration Storage, Compressed Air Energy Storage, Mechanical Batteries, Carbon-Free Future, Electrical Grid Solutions, Energy Storage Technology, Climate-tech Solutions, Independent Energy Provider, Low-cost Energy Storage, 24/7 Energy Solutions, Advanced Energy Technology, Economic Storage Solutions |
| Website | ||
| Website | powerphase.com | terrastor.co |
About Powerphase International
Powerphase International, under the slogan "Generation Smart," is positioning itself at the forefront of innovation in the Energy and Oil and Gas sectors. Founded in 2011, this United States-based company has commercialized advanced aero-thermal technologies aimed at optimizing air usage in power pl...
About TerraStor
TerraStor, founded in 2021, is an innovative energy startup with a mission encapsulated in its motto: "Grid-scale Energy Storage for a Carbon-Free Future." Based in the United States, the company operates within the Energy and Energy Storage industries. The company is pioneering the development of...
We will tell you when either one moves
BounceWatch watches Powerphase International and TerraStor for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Powerphase Internation... and TerraStor — by email.
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Compiled from the BounceWatch company index. We last looked at TerraStor on 18 Aug 2025. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.