{"id":"d8fb83e6-5f3d-42ad-95e5-59a2e680ace5","name":"Mainspring Energy","slug":"mainspring-energy","description":"Mainspring Energy makes fuel-flexible, low-emissions Linear Generators for onsite and grid power. Headquartered in Menlo Park, California, it began commercial shipments in 2020 and sells to commercial, industrial, data center and utility customers.","status":"private","founded":null,"hq":"Menlo Park, California, USA","hqLat":null,"hqLng":null,"hqGeocodedAt":null,"hqAddress":null,"hqPrecision":null,"website":"https://www.mainspringenergy.com","fundingTotal":null,"type":"infrastructure","roles":[],"reviewStatus":"unreviewed","heatIndex":0,"lifecycleState":"active","supersededByCompanyId":null,"sources":[{"url":"https://www.mainspringenergy.com/news/mainspring-energy-signs-landmark-1-6-gw-agreement-with-aep-for-reliable-affordable-power-capacity","title":"Mainspring Energy Signs Landmark 1.6 GW Agreement with AEP for Reliable, Affordable Power Capacity","sourceName":"Mainspring Energy","publishedAt":"2026-10-13"},{"url":"https://www.prnewswire.com/news-releases/mainspring-energy-signs-landmark-1-6-gw-agreement-with-aep-for-reliable-affordable-power-capacity-302906235.html","title":"Mainspring Energy Signs Landmark 1.6 GW Agreement with AEP","sourceName":"PR Newswire","publishedAt":"2026-10-13"},{"url":"https://x.com/TheLastMegawatt/status/2110474842579607772","title":"The Last Megawatt on AEP and Mainspring","sourceName":"The Last Megawatt (@TheLastMegawatt)","publishedAt":"2026-10-14"}],"keyFacts":[{"label":"AEP agreement (company-claimed, Oct 2026)","value":"Up to 1.6 GW of Mainspring Linear Generators for AEP through 2034; AEP bought a first 190 MW tranche for delivery beginning in 2027. Largest linear generator procurement to date."},{"label":"Installed base (company-claimed)","value":"Commercial shipments began in 2020; more than a gigawatt in advanced development and field operations for Fortune 500 companies, data centers and utilities."}],"aliases":["Mainspring","Mainspring Energy, Inc."],"collisionRisk":"low","reviewNote":null,"atsProvider":null,"atsSlug":null,"factoryLocations":null,"manufacturingCapacity":null,"orgType":null,"burnSignal":null,"litigationEvents":null,"insurancePostureDisclosed":null,"unitEconomicsDisclosed":null,"tickerSymbol":null,"stockExchange":null,"secCik":null,"revenueUsd":null,"revenueBasis":null,"revenueAsOf":null,"employeeCount":null,"employeeCountBasis":null,"employeeCountAsOf":null,"marketCapUsd":null,"marketCapAsOf":null,"marketCapSource":null,"createdAt":"2026-10-15T01:56:32.031Z","updatedAt":"2026-10-15T01:56:32.031Z","jsonLd":{"@context":"https://schema.org","@type":"Organization","@id":"https://registry.deploy.report/companies/mainspring-energy","url":"https://registry.deploy.report/companies/mainspring-energy","name":"Mainspring Energy","alternateName":["Mainspring","Mainspring Energy, Inc."],"description":"Mainspring Energy makes fuel-flexible, low-emissions Linear Generators for onsite and grid power. Headquartered in Menlo Park, California, it began commercial shipments in 2020 and sells to commercial, industrial, data center and utility customers.","identifier":"d8fb83e6-5f3d-42ad-95e5-59a2e680ace5","address":"Menlo Park, California, USA","publisher":{"@id":"https://deploy.report/#organization"}},"framework_metadata":{"framework_schema_version":"0.1.0","verification_status":"unreviewed","maturity_stage":null,"lifecycle_state":null,"architectural_position":{"cohort":null,"sub_cohorts":[]},"within_cohort_verified_vs_claimed_pair":null,"cap_flags":[],"verification_depth":{"sources_count":3,"primary_source_types":[]}}}