Rondo Energy
Founded Year
2020Stage
Series B - II | AliveTotal Raised
$82MMosaic Score The Mosaic Score is an algorithm that measures the overall financial health and market potential of private companies.
-62 points in the past 30 days
About Rondo Energy
Rondo Energy provides industrial heat solutions through its technology in the energy sector. The company's main offering, the Rondo Heat Battery, stores renewable electricity and delivers high-temperature heat for various industrial processes. Rondo Energy's products are designed for different industries, including steel, cement, chemicals, and food processing. It was founded in 2020 and is based in Alameda, California.
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Rondo Energy's Product Videos
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ESPs containing Rondo Energy
The ESP matrix leverages data and analyst insight to identify and rank leading companies in a given technology landscape.
The battery energy storage system (BESS) providers market offers grid-scale energy storage solutions that enable renewable energy integration, grid stability, and demand response services. These providers deliver comprehensive battery storage systems including lithium-ion, flow batteries, and other advanced technologies designed for utility-scale applications. Key features include modular and scal…
Rondo Energy named as Challenger among 15 other companies, including Fluence, Eos Energy Storage, and Base Power.
Rondo Energy's Products & Differentiators
Rondo Heat Battery 100 (RHB100)
A heat battery with 100MWh storage – delivering 7MWs to the customer 24/7.
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Research containing Rondo Energy
Get data-driven expert analysis from the CB Insights Intelligence Unit.
CB Insights Intelligence Analysts have mentioned Rondo Energy in 6 CB Insights research briefs, most recently on Oct 24, 2025.
Sep 12, 2023
The climate tech in industrials market map
Apr 18, 2023
70+ early-stage companies powering the smart grid
Expert Collections containing Rondo Energy
Expert Collections are analyst-curated lists that highlight the companies you need to know in the most important technology spaces.
Rondo Energy is included in 3 Expert Collections, including Energy Storage.
Energy Storage
5,442 items
Companies in the Energy Storage space, including those developing and manufacturing energy storage solutions such as lithium-ion batteries, solid-state batteries, and related software for battery management.
Grid and Utility
3,063 items
Companies that are developing and implementing new technologies to optimize the grid and utility sector. This includes, but is not limited to, distributed energy resources, infrastructure security, utility asset management, grid inspection, energy efficiency, grid storage, etc.
Renewable Energy
4,865 items
Rondo Energy Patents
Rondo Energy has filed 48 patents.
The 3 most popular patent topics include:
- energy conversion
- energy storage
- renewable energy
Application Date | Grant Date | Title | Related Topics | Status |
|---|---|---|---|---|
2/26/2024 | 2/25/2025 | Energy storage, Energy conversion, Renewable energy, Thermodynamics, Chemical processes | Grant |
Application Date | 2/26/2024 |
|---|---|
Grant Date | 2/25/2025 |
Title | |
Related Topics | Energy storage, Energy conversion, Renewable energy, Thermodynamics, Chemical processes |
Status | Grant |
Latest Rondo Energy News
Oct 30, 2025
converts cheap renewable electricity into heat that can be discharged on demand into industrial processes. This differs from most next-generation energy storage strategies, which provide electricity to grids in the absence of sun or wind. Instead, Rondo's system aims to help decarbonize emissions-heavy sectors like steelmaking and cement. The system works… Disclaimer We strive to uphold the highest ethical standards in all of our reporting and coverage. We StartupNews.fyi want to be transparent with our readers about any potential conflicts of interest that may arise in our work. It's possible that some of the investors we feature may have connections to other businesses, including competitors or companies we write about. However, we want to assure our readers that this will not have any impact on the integrity or impartiality of our reporting. We are committed to delivering accurate, unbiased news and information to our audience, and we will continue to uphold our ethics and principles in all of our work. Thank you for your trust and support. For the last 12 weeks, California start-up Rondo Energy has been operating what it's calling the world's largest thermal battery . Rondo's system converts cheap renewable electricity into heat that can be discharged on demand into industrial processes. This differs from most next-generation energy storage strategies, which provide electricity to grids in the absence of sun or wind. Instead, Rondo's system aims to help decarbonize emissions-heavy sectors like steelmaking and cement. The system works… More like this
Rondo Energy Frequently Asked Questions (FAQ)
When was Rondo Energy founded?
Rondo Energy was founded in 2020.
Where is Rondo Energy's headquarters?
Rondo Energy's headquarters is located at 1960 North Loop Road, Alameda.
What is Rondo Energy's latest funding round?
Rondo Energy's latest funding round is Series B - II.
How much did Rondo Energy raise?
Rondo Energy raised a total of $82M.
Who are the investors of Rondo Energy?
Investors of Rondo Energy include H&M Group Ventures, Energy Impact Partners, Breakthrough Energy, Titan Cement International, Aramco Ventures and 8 more.
Who are Rondo Energy's competitors?
Competitors of Rondo Energy include Antora.
What products does Rondo Energy offer?
Rondo Energy's products include Rondo Heat Battery 100 (RHB100) and 1 more.
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Compare Rondo Energy to Competitors
RedoxBlox focuses on energy storage solutions that operate within the energy and environmental sectors. It offers products that replace natural gas and fossil fuel combustion with electrification and thermochemical energy storage, providing zero-carbon electricity and heat. Its solutions are primarily targeted towards the industrial processing and power production sectors. It was founded in 2020 and is based in San Diego, California.
Antora builds and deploys American-made thermal batteries to power always-on industrial operations with low-cost renewable energy. Its solutions integrate with renewable energy sources or grid power to assist in the decarbonization of industrial sectors. It was founded in 2017 and is based in Sunnyvale, California.
HeatVentors focuses on thermal battery technology for energy storage and management in various industries. Its main offering includes thermal batteries that store thermal energy for later use, utilizing a control algorithm, phase change materials, and heat exchangers to support energy savings and lower CO2 emissions. The company serves sectors that require management solutions, such as office buildings, shopping malls, hotels, data centers, and utilities. It was founded in 2017 and is based in Budapest, Hungary.
Greendur Technologies provides thermal energy storage solutions for industrial heat generation. The company's offerings focus on reducing carbon dioxide emissions, addressing scope 1 carbon footprint, and utilizing waste-heat recovery. It serves sectors aiming to decrease fossil fuel reliance and promote sustainable energy practices.It primarily serves the energy sector. The company was founded in 2020 and is based in Pamplona, Spain.
Alumina Energy focuses on thermal energy storage technology in the energy sector. The company's primary offering is the HEATER product, which converts intermittent renewable energy into heat and power. Alumina Energy's systems are designed for both distributed and utility-scale long-duration storage. It was founded in 2015 and is based in Santa Monica, California.
Organic Heat Exchangers specializes in thermal energy storage technology within the energy sector. The company offers products such as cold thermal energy storage systems and thermal batteries designed to enhance energy efficiency and support carbon reduction initiatives. These systems are tailored to provide operational resilience and cost savings for industrial and commercial cooling applications. It was founded in 2016 and is based in Thornton, England.
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