Fourth Power
Highly Engaged Employees
Highly Engaged EmployeesElectricity, Oil & Gas · Massachusetts, United States · 1-10 Employees
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Overview
Headquarters
1 Broadway, Cambridge, Massachusetts, 02...Phone Number
(888) 491-2419Website
www.gofourth.comRevenue
<$5 MillionIndustry
ZI Rank: 4
Signal Type
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ZI Rank
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About Fourth Power
Fourth Power delivers utility-scale energy storage that grows with the grid to meet todays short-duration needs and tomorrows long-duration requirements. By combining thermal energy storage with thermophotovoltaic (TPV) cells, it turns the light emitted from heated carbon blocks into electricity that is dispatchable to the grid in seconds. The companys extremely high-temperature system (2400C) ensures maximum power density with abundant domestic materials, delivering energy storage at less than $25/kWh-eten times cheaper than lithium-ion batteries.Explore more
Fourth Power Org Chart
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Revenue
Number of Employees
Type
Funding
Founded In
Company Profile Activity
Activity Insights
Fourth Power is experiencing very low activity levels compared to other companies in the Energy, Utilities & Waste sector.
What does this means?
Fourth Power is drawing exceptional interest within the Energy, Utilities & Waste industry, suggesting notable developments or strong market momentum, learn more about Fourth Power.
Fourth Power financials insights
Gather financial insights about Fourth Power, including details on funding rounds, investors, total funding, and acquisitions, to gain a comprehensive understanding of their financial strategy.
2025
Series A
$39M
Fourth Power Tech Stack
A closer look at the technologies used by Fourth Power
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Most Recent Scoops
Open Position
Facilities Relocation / Expansion
Fourth Power is planning to move offices in June 2026. The move will impact approximately 15 employees at the existing office located at 1 Broadway, Cambridge, Cambridge, MA.
Facilities Relocation/Expansion
Hiring Plans
Fourth Power has more open roles in Engineering & Technical than it has had at any time in the past 12 months.
Hiring Plans
Funding
Funding
Person-Based
Fourth Power News & Media
Graphite bricks six feet long sit glowing at 2,400 degrees in a Boston suburb, hotter than half ...
A company outside Boston named itself after that exponent and built its entire business on it. Fourth Power, spun out of MIT by mechanical engineeringFourth Power makes the case for thermal storage as it raises $20 million - ESS News
It's not an easy life in thermal energy storage, but long-duration technology is important. Fourth Power continues to show promise, and CEO Arvin Ganesan discusses where and why it will prove out.Fourth Power’s sci-fi thermal batteries could be cheaper than pricey natural gas power plants
Fourth Power has raised $20 million to build a demonstration version of its thermal batteries, which ultimately could store electricity at $25 per kWh.Fourth Power Expands Leadership Team to Include Engineering and Manufacturing Trailblazers
BOSTON--(BUSINESS WIRE)--To support the rapidly growing demand for clean, firm power, grid energy storage pioneer Fourth Power has added Fred Huang and Patrick Schweiger to the senior leadership team as Executive Vice Presidents (EVPs). Huang will serve as EVP of Operations, leading the creation of Fourth Power’s project execution engine, which will productize designs for high-speed deployment. As EVP of Engineering, Schweiger will spearhead product development validation and build the engineer
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Frequently Asked Questions Regarding Fourth Power
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Fourth Power delivers utility-scale energy storage that grows with the grid to meet todays short-duration needs and tomorrows long-duration requirements. By combining thermal energy storage with thermophotovoltaic (TPV) cells, it turns the light emitted from heated carbon blocks into electricity that is dispatchable to the grid in seconds. The comp... Read More
