Capstone Green Energy

What Capstone Green Energy does

Capstone Energy+ (formerly Capstone Green Energy, OTC: CGEH) designs, manufactures, and services low-emission, oil-free microturbine power generation systems spanning 65 kW single units to multi-megawatt configurable arrays. The company's proprietary architecture runs on natural gas, biogas, renewable natural gas (RNG), and hydrogen blends, and supports Combined Cooling, Heating and Power (CCHP) configurations that capture waste heat for facility heating and chilled-water production. More than 10,600 units have been shipped to 88 countries through a dedicated global distributor network, with direct enterprise engagement for large installations in oil and gas, data centers, microgrids, renewable energy, EV charging, and industrial processing.

The commercial model blends hardware sales of C800S and C1000S microturbines with an Energy-as-a-Service (EaaS) program that includes build-own-and-transfer, Power Purchase Agreements (PPAs), lease-to-own, and rental structures, alongside ongoing Product Support and service revenue. Recent product development centers on the Energy Surplus Program (ESP) and an 800 VDC microturbine system co-developed with Microgrids 4 AI to deliver integrated on-site power and liquid cooling for AI data center campuses, with a "Pay-as-You-Grow" deployment model. Capstone exited a 2023 Chapter 11 restructuring with Goldman Sachs, was recapitalized in March 2026 by Monarch Alternative Capital via a $112.5 million strategic investment that redeemed the prior preferred equity, and rebranded to Capstone Energy+ with a stated intent to uplist to a national securities exchange.

Name

Capstone Green Energy

Legal name

Capstone Green Energy Holdings, Inc.

Website

https://capstonegreenenergy.com

Company type

Public

Founded year

1987

Operating status

Operating

Headcount range

251–500 employees

Short description

Capstone Energy+ designs, manufactures, and services oil-free, fuel-flexible microturbine power systems (65 kW to multi-MW) for data centers, oil and gas, microgrids, and industrial customers across 88 countries, combining hardware sales with an Energy-as-a-Service program.

Ownership category

akta.pro rank

Product category

Distributed Energy Generation / Microturbine Power Systems

NAICS

Turbine and Turbine Generator Set Units Manufacturing (333611), Engine, Turbine, and Power Transmission Equipment Manufacturing (3336), Electric Power Generation (22111)

SIC

Engines & Turbines (3510), Motors & Generators (3621), Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

Microturbines, Fuel Cells & Distributed Generation Prime Movers (IMAHAFAH)

akta.pro secondary industries

Dispatchable Distributed Generation (Gas Reciprocating Engines, Microturbines) (EUACALAI), Microgrid & Distributed Grid Equipment (Controllers, Switchgear Packages, DER Interconnection) (IMAGAAAJ), Microgrid EPC, Integration & Commissioning (Design-Build, Interconnection) (EUAFAJAI), Remote, Islanded & Off-Grid Microgrids (Islands, Mining, Telecom Towers) (EUAFAJAD)

Keywords

• Microturbine power systems
• Distributed energy generation
• Combined heat and power
• Microgrid solutions
• Oil-free turbine generators

Headquarters

HQ city

Chatsworth

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Technology or R&D, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Microturbine Products: Sale of microturbine systems (C800S, C1000S) and accessories for on-site power generation. Products range from 65kW to multi-megawatt solutions.
2. Energy-as-a-Service (EaaS): Flexible offerings including build-own & transfer models, Power Purchase Agreements (PPAs), lease to own, and rental solutions. Provides maximum value and energy security for customers with limited capital budgets or short-term energy needs.
3. Product Support and Services: Ongoing service and support for installed microturbine systems, including maintenance and parts.
4. Rentals: Fast, turnkey power rental solutions for customers with limited capital budgets or short-term energy needs, including mobile EV charging units.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels8 records

Core offering

Capstone Green Energy designs, manufactures, and services low-emission, oil-free microturbine power generation systems (C800S, C1000S, Signature Series) ranging from 65 kW to multi-megawatt configurations. The company sells these systems directly and through a global distributor network of 88 countries, supports them with product service contracts, and offers Energy-as-a-Service (EaaS) rental, lease, and PPA programs for customers needing flexible capital deployment.

Product overview

Capstone Green Energy (now Capstone Energy+) is a clean energy technology company offering a modular microturbine platform as its core product, spanning from 65kW single units to multi-megawatt configurable arrays. The product portfolio centers on proprietary oil-free microturbine generators (C1000S, C800S, Signature Series, S Series), supplemented by the Energy-as-a-Service (EaaS) rental and leasing program and the Engineered Equipment Package (EEP) — an integrated power and cooling system combining microturbines with absorption chillers, dry coolers, battery energy storage, and microgrid controls. The Energy Surplus Program (ESP) packages these components for AI data center deployments on a scalable, 'Pay as You Grow' basis. Additional solutions include microgrid systems, CCHP/CCP thermal capture, and EV charging infrastructure. The company has also expanded through the acquisition of Cal Microturbine. Over 10,600 microturbine units have been shipped to 88 countries, and the portfolio supports fuel flexibility including natural gas, biogas, renewable natural gas, and hydrogen blends.

Differentiator

Problem solved

Functional benefit

Brands

• Energy Surplus Program (ESP): A scalable on-site power and integrated cooling solution for AI data centers featuring microturbines, absorption chillers, dry coolers, battery energy storage, and microgrid controls
• Energy-as-a-Service (EaaS)

Products and services

• C1000S Microturbine High-pressure natural gas microturbine generator (S Series) capable of satisfying 100% of compression plant demand for complete energy independence, including during grid blackouts. Designed for industrial oil & gas and compression operations.
• C800S Microturbine 800 kW microturbine system operating as a combined heat and power (CHP) and CO2 fertigation solution; Signature Series variant supports biogas, natural gas, and hydrogen blend fuels for industrial, agricultural, and food processing customers.
• Microturbine Technology Platform (65 kW to Multi-MW) Capstone's proprietary oil-free microturbine platform spanning 65 kW single units to multi-megawatt configurations. Features ultra-low maintenance, fuel flexibility across natural gas, biogas, RNG, and hydrogen blends, low emissions, and quiet operation; over 10,600 units shipped to 88 countries.
• Energy Surplus Program (ESP) Modular on-site power and integrated cooling solution delivering scalable energy for AI data centers on a Pay-as-You-Grow basis. Combines microturbines, absorption chillers, dry coolers, battery energy storage (BESS), and microgrid controls to reduce grid dependence and support high-density AI workloads.
• 800 VDC Microturbine System for AI Data Centers 800 VDC microturbine system developed for next-generation AI data centers, integrating with Microgrids 4 AI modular data center solutions to provide enhanced power efficiency and support scaling from edge deployments to large AI campuses.
• Energy-as-a-Service (EaaS) / Rentals Flexible Energy-as-a-Service offerings including build-own-and-transfer models, Power Purchase Agreements (PPAs), lease-to-own, and rental solutions providing fast turnkey power for customers with limited capital budgets or short-term energy needs, including mobile EV charging units.
• Microgrid Solutions Ultra-reliable energy independence solutions for remote or harsh locations, integrating microturbine generation with controls for on-grid, off-grid, or hybrid microgrid applications serving ports, islands, and critical infrastructure.
• Combined Cooling, Heating and Power (CCHP/CCP) Solutions Thermal capture technology enabling total system efficiencies up to 95% by simultaneously generating power while reclaiming waste heat for facility heating and cooling needs in commercial and industrial facilities.
• EV Charging Solutions Reliable backup and primary power solutions for EV charging infrastructure, including trailer-mounted mobile units delivering 180 kW of continuous off-grid power deployable in as little as two weeks, with greater than 99% uptime.

Quantifiable outcome

• Up to 95% total efficiency with CCHP systems
• +9 more outcomes

Named customers8 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered core.

• Microgrids 4 AI (MG4AI)coreTechnology or Integration · 21 October 2025Development of 800 VDC microturbine system for next-generation AI data centers, showcased at Data Center World Asia. Technology integrates with MG4AI's modular data center solutions to enhance power efficiency and support scaling from edge deployments to large AI campuses.
• Microgrids 4 AI, Inc.coreStrategic or Co-development Partner · 9 September 2025Strategic MOU to deliver sustainable, scalable, and resilient infrastructure for AI data center market. MG4AI's modular AI-ready infrastructure paired with Capstone's ultra-low-emission microturbines and Combined Cooling and Power (CCP) systems. Integration of Capstone's CCP with MG4AI's containerized compute pods enables rapid deployment, reduced power and cooling costs, and unmatched reliability for mission-critical AI workloads. Partnership positions both companies to meet growing demand for scalable, liquid-cooled GPU data centers.

Scale indicators15 records

Recent moves8 records

Expansion highlights6 records

Broad incumbents

• Caterpillar: Caterpillar's Electric Power division manufactures large gas and diesel gensets and turnkey microgrid power solutions for data centers, oil & gas, and industrial customers. It competes with Capstone on behind-the-meter generation for hyperscalers and large industrial sites, but at significantly higher power output tiers.
• Cummins: Cummins Power Generation produces natural gas and diesel generator sets, transfer switches, and microgrid controls for data centers, healthcare, and industrial facilities. Comparable to Capstone in targeting mission-critical on-site power and microgrids, but offers reciprocating-engine platforms at much larger scale.
• Rolls-Royce Power Systems (mtu): Rolls-Royce's mtu brand supplies gas and diesel generator sets, combined heat and power systems, and microgrid solutions for data centers, utilities, and industrial customers. Directly competes with Capstone in CHP and on-site power for mission-critical and AI data center use cases.
• Generac: Generac is a leading manufacturer of backup power generators, including natural gas and clean-energy storage and microgrid products. Comparable to Capstone in distributed generation and energy-as-a-service offerings, particularly for commercial, industrial, and data center customers.
• Vertiv: Vertiv provides critical digital infrastructure, including power management, thermal management, and integrated solutions for AI and hyperscale data centers. Comparable to Capstone's ESP/EEP offering as a combined power and cooling platform targeting liquid-cooled AI data center deployments.
• ABB (Electrification / Microgrid Solutions): ABB supplies microgrid controllers, power conversion, and grid-interconnection equipment used in distributed generation and microgrid deployments. Relevant peer for Capstone's microgrid and BESS integration offerings, particularly the Energy Surplus Program's controller stack.

Direct peers

• INNIO (Jenbacher / Waukesha): INNIO's Jenbacher and Waukesha brands manufacture gas engines for distributed power generation, CHP, and microgrid applications across industrial, oil & gas, and data center customers. Closest direct competitor to Capstone in fuel-flexible, on-site natural gas / biogas power with similar modular product positioning.
• Bloom Energy: Bloom Energy deploys solid-oxide fuel cell systems for behind-the-meter distributed generation at data centers, including large-scale deployments with hyperscalers. Competes head-to-head with Capstone's microturbines for the same AI data center power and reliability narrative, albeit with a different technology pathway.
• Yanmar (Yanmar Energy Systems): Yanmar manufactures micro gas turbines (e.g., the 35kW CGT class) and CHP systems for commercial and industrial distributed generation. Directly comparable to Capstone in compact, fuel-flexible microturbine technology for CHP and microgrid applications.

Emerging players

• Mainsail Energy: Mainsail Energy develops small-scale natural gas engines for distributed generation, remote power, and oilfield applications. Overlaps with Capstone in modular natural-gas-fired distributed generation targeting similar industrial and remote-site customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/CapstoneTurbine
• YouTubeyoutube.com/c/CapstoneGreenEnergy
• Facebookfacebook.com/126059617448013
• LinkedInlinkedin.com/company/capstone-turbine-corporation
• Instagraminstagram.com/cgrnenergy

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries1 record

Funding overview

Funding rounds9 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A2 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Capstone Green Energy