18 December 2025
Mainspring Energy
Lower capex, lower maintenance costs, and higher efficiency combine to deliver a lower levelized cost of electricity (LCOE) than alternative technologies.
Secure predictable power costs with efficient generation that uses less fuel and is less exposed to market fluctuations.
Maintain operations with modular units that are serviced individually, avoiding costly full-system shutdowns.
Kroger
Kroger's onsite power generation provides predictable and lower energy costs.
Meets stringent clean air quality and low noise standards, enabling ease of permitting.
Lathrop Irrigation District (LID)
LID is now able to meet 95% of its peak load with local, dispatchable power that cuts electricity costs.
Achieved air permits in three months; generator delivery in seven months.
Deploy modular, fast-to-permit, operationally flexible power to meet rising compute demand.
Bring reliable, low-emissions primary power onsite to control costs and ensure uptime.
Generate dependable, low-emissions power using available fuels like biogas, field gas, or natural gas.
Buy outright to take advantage of available incentives, long-term economic value, and maintain ownership of your asset.
Finance with flexible structures that reduce upfront capital expenditure and deliver predictable, manageable expenses.
Mainspring Linear Generators qualify for a Federal Investment Tax Credit (ITC) of 30% for projects through 2032.
Get turnkey maintenance from Mainspring or explore our flexible service offerings.
Mainspring has allowed us to manage electricity expenses better and lower our carbon footprint. We’ve already begun adopting this technology at other locations.
Regional Director, Construction, The Kroger Co.
18 December 2025
Mainspring Energy
21 August 2025
National Grid Ventures
13 August 2025
Garrett Hering
Mainspring lowers energy costs by generating power at the customer site. Its full dispatchability reduces demand charges by supplying power exactly when the facility needs it. Where applicable, the system complements solar by load following and filling production gaps, lowering the total cost of energy at the site. Compared to other onsite technologies, Mainspring delivers higher efficiency and lower maintenance costs, reducing operating expenses even further.
Mainspring reduces exposure to volatile grid prices by producing power onsite. Grid electricity is largely tied to natural gas prices, but linear generators operate at higher efficiency than legacy grid technologies and avoid transmission losses. This means customers need less fuel to produce the same amount of power, making them far less sensitive to swings in fuel prices and creating a more stable, predictable cost of energy.
Mainspring’s linear generator has only two moving parts that glide on air bearings, which reduces friction. The low-temperature design further reduces stress on components. Its modular architecture limits downtime because individual units can be serviced while the rest of the system continues operating, keeping power available.
Grid power costs continue to rise as utilities invest in wildfire mitigation, extreme-weather hardening, transmission upgrades, and storm recovery. These pressures drive long-term rate escalations that customers can’t control. Mainspring avoids these external costs by generating power onsite with high efficiency and predictable long-term pricing. This provides greater budget certainty and the potential for meaningful savings over the life of the project.
Mainspring and its partners offer financing solutions that align costs with performance. These structures allow customers to deploy onsite power with little or no upfront investment while capturing savings from day one.