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Mainspring Energy
Designs and delivers onsite, fuel‑flexible, dispatchable linear generators for clean, resilient power.
Commercial & Industrial (C&I)
Data Centers
Utilities
Microgrids
Distributed Energy Resources (DER)
Investor-Owned Utilities
Municipal Utilities
Cooperatives
Independent Power Producers (IPPs)
Hydrogen-ready Power Generation
Ammonia-ready Power Generation
Onsite Electrification
Load Pocket Solutions
Non-Wires Alternatives
Flexible Balancing/Peaking Power
Fast-Ramping Power
Long-Duration Capacity Power
Clean Capacity Installations
Transmission-Connected Arrays
Distribution-Connected Arrays
About Mainspring Energy
Its flagship linear generator uses direct
drive magnets and software control to switch seamlessly between fuels like natural gas, biogas, and green fuels.
The company created a new category of onsite power with its first commercialized linear generator.
They partner with major firms like NextEra and Schneider Electric to integrate these generators into broader microgrid and resilience solutions.
Key Highlights
$290M Series EThe company secured significant capital for expansion through Series E funding.
300,000 sq ft plantA large-scale production facility is being built with DOE support.
Culture & Values
Be Passionate About Our Mission
Lead with Integrity
Innovate Relentlessly
Collaborate as One Team
Commit to Excellence
Key Highlights
100% hydrogen & ammoniaThe company achieved a world-first with a generator capable of running solely on hydrogen and ammonia.
230 kW unitsThe company's products deliver reliable onsite power, starting from 230 kW units.
Environment & Sustainability
Delivers clean, low
carbon, and sustainable energy solutions.
Provides flexible, clean power using advanced Linear Generator technology.
Reduces greenhouse gas emissions through cleaner, more efficient power generation.
Key Highlights
2040 targetAiming to achieve complete carbon neutrality by the year 2040.
Quick InfoVisit Company Website
Company Size584 employees
Open Positions5 jobs available
IndustriesCommercial & Industrial (C&I), Data Centers, Utilities +17 more
Open Positions
5 jobs available
Design and lead electrical enclosures/cable systems for linear generator power tech.
Menlo Park, California, United States
NaNy
Hybrid
technical review
hardware design
reliability testing
mechanical eng
electrical enclosure
PEOPLE ALSO SEARCHED FOR:
Field Service Technician (Southern California)
Employer unknownPerform mechanical repair, maintenance, and inspections on Mainspring generators at customer sites.
Torrance, CA
28 days ago
Field
on-call support
mechanical inspection
repair maintenance
google workspace
precision measuring
PEOPLE ALSO SEARCHED FOR:
Field Service Technician (Ohio)
Employer unknownMechanically repair, maintain, and troubleshoot Mainspring generators on customer sites.
Columbus, OH
28 days ago
Field
on-call support
mechanical inspection
mechanical repair
google workspace
precision measuring
PEOPLE ALSO SEARCHED FOR:
Senior Field Service Technician (Ohio)
Employer unknownPerform mechanical repairs and maintenance on Mainspring Linear Generators in the field.
Columbus, OH
28 days ago
Field
on-call
mechanical inspection
repair
google workspace
precision measuring
PEOPLE ALSO SEARCHED FOR:
Senior Field Service Technician (Southern California)
Employer unknownPerform mechanical repair and maintenance on generators in the field.
Torrance, CA
28 days ago
Field
on-call
mechanical inspection
repair maintenance
google workspace
precision measuring
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