Breakthrough design and adaptive control software enable an unprecedented combination of features and benefits.Product specifications
Direct conversion of linear motion into electricity
Mainspring’s linear generator is designed to enable high expansion of reacted gases and to electrically control the conversion of linear motion directly into electricity. High expansion allows for maximum extraction of reaction energy and direct conversion eliminates mechanical losses — combining to enable high efficiency operation.
Near-Zero NOx Emissions
Low-temperature reaction without a flame
Mainspring’s linear generator uses a low-temperature, uniform reaction that maintains peak temperatures below the levels in which NOx forms (1500°C), resulting in near-zero NOx emissions. This is in contrast to the burning of a fuel with a flame, which creates high temperatures and high NOx emissions.
Continuous, adaptive control without mechanical constraints
Mainspring’s linear generator technology continuously adjusts compression and expansion, allowing it to dynamically adjust for varying fuel quality and different types of fuels, including renewable biogas and hydrogen.
Load tracking, fast on/off, black start, and islanding
Mainspring’s linear generators match power output with building demand while integrating with onsite solar and energy storage, enabling the continued rapid adoption of renewables. In addition, Mainspring’s technology provides power when the grid is down, making it the ideal backbone of any renewable microgrid.
Low Capital & Maintenance Costs
Standard materials, only two moving parts, and no oil
Mainspring’s linear generator is made out of standard materials with only two moving parts and operates without the use of oil or expensive fuel cell catalysts or complex engine mechanical systems — resulting in low capital and maintenance costs.
Built-in grid-tie inverters and auxiliaries
Mainspring’s linear generator products combine grid-tie inverters and auxiliaries into turn-key packages for fast and simple installation. Mainspring’s first product is designed for commercial businesses with a rated output of 250 kW net AC (3-phase, 480 V) and packaged in a standard 20’ container.
The Linear Generator Core
The Mainspring Linear Generator – distinct from an engine, microturbine, or fuel cell – directly converts motion along a straight line into electricity using chemical energy.
At the heart is our 125 kW linear generator core. Our first product features two cores in each package, working in tandem.
Mainspring Technical Brief
Reaction Terminology and the Challenges for Energy and Environmental PolicyDownload