Perspectives
18 December 2025
Mainspring Energy
Generate community-friendly power.
Reduce emissions with quiet local power generation that produces near-zero NOx.
Accelerate permitting and build more capacity with near-zero emissions.
Permit faster
low-temperature, non-combustion reaction produces near-zero NOx, without the need for aftertreatment, accelerating air permits and avoiding non-compliance risk.
Expand project potential
Build larger sites within regulatory limits thanks to low criteria pollutant output that allows more capacity under strict air caps.
Design for the future
Meet today’s power demands with the flexibility to intermittently or permanently shift to renewable fuels like hydrogen.
$35m in avoided utility upgrade costs.
California Dairies, Inc.
Low emissions
CDI elected to use Linear Generators with near-zero NOx emissions to decrease their microgrid's emissions.
Dispatchable onsite power
CDI needs power generation that can efficiently follow their site's operational load.
Providing cost-savings across portfolio of grocery stores.
Kroger
Control costs
Kroger's onsite power generation provides predictable and lower energy costs.
Low emissions and noise
Meets stringent clean air quality and low noise standards, enabling ease of permitting.
Power solutions built for every industry.
Data centers
Deploy modular, fast-to-permit, operationally flexible power to meet rising compute demand.
Enterprise
Bring reliable, low-emissions primary power onsite to control costs and ensure uptime.
Industrial
Generate dependable, low-emissions power using available fuels like biogas, field gas, or natural gas.
Generate power without impacting air quality.
Mainspring Linear Generators improve our energy independence.
Chris Thurston
Head of Renewable Energy Projects, Lineage Logistics
Milestones in the future of power
In The News
21 August 2025
National Grid Ventures
In The News
13 August 2025
Garrett Hering
Mainspring’s linear generator operates through a controlled, low-temperature reaction rather than the high temperatures of alternative technologies. The lower reaction temperature prevents the formation of NOx and particulate matter that occur in engines and turbines, eliminating the need for exhaust after-treatment systems.
The linear generator's low emissions allow customers to deploy more generation capacity on site in less time than comparable combustion-based systems. With near-zero NOx and no particulate matter, many air districts and jurisdictions do not subject linear generators to more onerous permit compliance and identify linear generators as a lower environmental impact technology. As such, this reduces the complexity of air permitting and allows customers to gain more capacity over shorter timelines.
A linear generator delivers fast, flexible, low-emission power with full dispatchability and seamless fuel switching. Other technologies require tradeoffs across one or more of these attributes. Fuel cells share the low-emissions profile but can’t seamlessly switch fuels or load follow, limiting their flexibility. Engines and turbines offer dispatchability but rely on combustion, which drives higher local air pollution and increases complexity.
The linear generator enables customers to reduce CO₂ emissions today while preparing for tomorrow’s renewable fuels. Its efficient, low-temperature operation supports natural gas and biogas now and can transition to hydrogen as it becomes available. This helps organizations meet near-term air-quality requirements and align with long-term decarbonization targets.
Because Mainspring systems emit a fraction of the pollutants produced by engines or turbines, operators can add generation capacity without exceeding existing emissions caps. This allows customers to expand operations or develop new projects while maintaining compliance with air-district limits.