EET - Efficient Energy Technology GmbH
We make renewable energy simple, safe and reliable for everyone!
36 employees · est. 2017 · Austria
Solstice
Solstice connects households and businesses to local clean energy sources that provide guaranteed annual savings.
55 employees · est. 2014 · Cambridge, United States
Solstice is the older company (2017 vs 2014); Solstice is the larger of the two.
Side-by-Side Comparison
| Metric | EET - Efficient Energy Technology GmbH | Solstice |
|---|---|---|
| Founded | ||
| Founded | 2017 | 2014 older |
| Headquarters | ||
| Headquarters | Austria | Cambridge, United States |
| Employees | ||
| Employees | 36 | 55 larger |
| Industry | ||
| Industry | Renewable Energy, Energy Storage | Energy, Renewable Energy, SaaS |
| Funding Stage | ||
| Funding Stage | Series A | Grant |
| Total Funding | ||
| Total Funding | $6.55M | $4.70M |
| Funding Rounds | ||
| Funding Rounds | 2 | 10 |
| Services | ||
| Services | SolMate 3 products, solar energy storage, smart energy software (SolBrain), flexible solar solutions, energy management applications | Not tracked yet |
| Target Customers | ||
| Target Customers | homeowners, small businesses, energy-conscious consumers, users with or without existing solar panels | Not tracked yet |
| Taxonomy | ||
| Taxonomy | Solar Energy, Photovoltaic Technology, Urban Renewable Solutions, Energy Storage, Decentralized Energy, Independent Energy Production, Energy Cost Savings, Compact Solar Systems, Solar For Urban Living, Emergency Power Solution, Sustainable Technology, Solar Innovation, Energy Technology, Self-installation Solar System | Community Solar, Solar Energy, Clean Energy, Shared Solar, Energy Equity, Social Entrepreneurship, Renewables, Energy Solutions, Sustainable Energy, Customer Management, Solar Marketplace, Solar Development, Subscriber Aggregation, Energy Savings |
| Website | ||
| Website | eet.energy | solstice.us |
About EET - Efficient Energy Technology GmbH
EET - Efficient Energy Technology GmbH, headquartered in Austria, is a pioneering firm in the Renewable Energy and Energy Storage industries. Established in 2017 by Florian, Stephan, and Christoph, the company is driven by the ethos: "We make renewable energy simple, safe and reliable for everyone!"...
About Solstice
Solstice is a United States based startup with a mission to connect households and businesses to local clean energy sources, providing guaranteed annual savings. Founded in 2014, Solstice addresses the issue of 90 million American households being locked out of the solar marketplace. The company aim...
We will tell you when either one moves
BounceWatch watches EET - Efficient Energy Technology GmbH and Solstice 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 EET - Efficient Energy... and Solstice — by email.
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Related Comparisons
Compiled from the BounceWatch company index. We last looked at EET - Efficient Energy Technology GmbH on 18 Aug 2025, and Solstice on 3 Mar 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.