100kW–199kW Generators for Sale
Generator Source offers a comprehensive selection of 100kW to 199kW generators for sale, serving the needs of businesses that require mid-range power solutions.

100kW-199kW
Diesel Generators

100kW-199kW
Natural Gas Generators

100kW-199kW
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Extensive Inventory of 100–199 kW Generators

Whether you need a 100kW generator or a used 150kW generator for a project, our inventory includes both new and used units to fit various budgets. We carry a wide variety of commercial diesel generators and natural gas generators in this capacity range, available in standby configurations for backup power or as portable systems for prime power on job sites. Every generator is thoroughly inspected and load-tested to ensure reliable performance when you need it most.
Generators in the 100–199 kW range are engineered to provide dependable power in a variety of setups. Many come with weather-proof enclosures and large integrated fuel tanks for extended runtime as standby units, while others are trailer-mounted for easy transport. This means you can choose between stationary standby generators that automatically restore power during outages and mobile generators that deliver portable power wherever it is required.
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Industries that rely on 100kW–199kW generators
Healthcare & Medical Facilities
Clinics, surgical centers, and emergency care sites rely on generators in this range to power life-saving equipment, refrigeration for medication, and essential lighting during outages. 150kW diesel standby units are commonly installed for automatic backup in these settings.
Munfacturing & Light Industrial
Small to mid-sized factories and processing plants use these generators to support key production lines, motors, and safety systems. A 125kW or 175kW generator can keep a facility operational through unexpected power loss, reducing downtime and material waste.
Construction & Job Sites
Construction companies use mobile generators in this capacity range to energize cranes, welding equipment, trailers, and site lighting. A trailer-mounted 150kW diesel generator offers the durability and power needed to keep large-scale projects moving.
Data Center & IT Infrastructure
Server rooms and edge computing sites use 100kW to 199kW generators to protect data integrity and maintain connectivity. These generators provide reliable backup power for networking equipment, cooling systems, and monitoring tools during grid disruptions.
Agriculture & Food Storage
Farms and cold storage warehouses rely on generators to run irrigation pumps, climate-controlled storage, lighting, and feeding systems. Portable 100kW generators are ideal for seasonal use, while stationary units support year-round operations.
Telecommunications & Broadcasting
Cell towers, remote network stations, and broadcast facilities use 100kW to 199kW generators to ensure uninterrupted communication during power outages. These generators provide dependable backup for transmission equipment, routers, climate control systems, and security infrastructure—especially in rural or disaster-prone areas where uptime is critical.
Understanding Business Power Needs (100kW-199kW)
Power outages can lead to significant financial losses, data corruption, and damaged reputations. Our range of 100kW-199kW generators provides robust, reliable backup power, ensuring your business operations, critical systems, and revenue streams remain uninterrupted.
What types of businesses commonly utilize 100kW-199kW generators for backup power?
Generators in the 100kW-199kW range are ideal for small to medium-sized commercial and industrial operations requiring substantial, yet not massive, backup power. This includes:
- Retail & Hospitality: Medium-sized grocery stores, restaurants, hotels, and shopping centers.
- Healthcare: Clinics, urgent care centers, assisted living facilities, and smaller hospitals.
- Data Centers & IT: Backup for server rooms, network infrastructure, and critical data processing.
- Manufacturing: Small-scale production lines, quality control, and essential machinery.
- Offices & Commercial Buildings: Entire office complexes, call centers, and multi-tenant commercial spaces.
- Agricultural: Large farming operations, cold storage, and processing facilities.
- Educational Institutions: School buildings, university labs, and administrative offices.
- Telecommunications: Cell towers and regional switching stations.
How do I accurately size a 100kW-199kW generator for my specific business operations?
Accurate generator sizing is paramount for B2B applications to avoid costly downtime or inefficient operations. Our process involves a detailed load analysis, which includes:
- Identifying Critical Loads: Pinpointing essential equipment (servers, HVAC, lighting, security, POS systems) that must run during an outage.
- Calculating Starting (Inrush) Current: Accounting for the initial power surge required by motors and inductive loads.
- Determining Running Amperage: Assessing the continuous power draw of all connected equipment.
- Considering Future Expansion: Building in headroom for potential growth or additional equipment.
What are the primary benefits of investing in a 100kW-199kW generator for my business?
The strategic investment in a 100kW-199kW generator offers numerous critical advantages for your business:
- Uninterrupted Operations: Maintain productivity, sales, and service delivery during grid failures.
- Revenue Protection: Prevent financial losses from halted operations, spoiled goods, or lost data.
- Data Integrity & Security: Safeguard critical data, network infrastructure, and security systems.
- Customer & Employee Safety: Ensure lighting, HVAC, and emergency systems remain functional.
- Competitive Advantage: Demonstrate reliability and resilience to clients and partners.
- Compliance: Meet regulatory requirements for power backup in specific industries (e.g., healthcare, data centers).
- Asset Protection: Prevent damage to sensitive electronics and machinery from sudden power loss or surges.
Which fuel types are most suitable for commercial and industrial 100kW-199kW generators?
For commercial and industrial applications in this range, the most common and efficient fuel types are:
- Diesel Generators: Highly reliable, fuel-efficient under heavy loads, excellent for prime power or extended backup. Fuel can be stored on-site. Often preferred for critical applications due to robust performance.
- Natural Gas (NG) Generators: Environmentally cleaner, lower emissions, and provide a continuous fuel supply if connected to a utility pipeline. Ideal for businesses with existing NG access and for areas with stricter emission regulations.
- Liquid Propane (LP/LPG) Generators: Offer clean-burning fuel and easy on-site storage. Suitable where natural gas isn’t available or for backup power needs in areas with moderate run time requirements.
What are the key features and control systems to look for in a 100kW-199kW business generator?
Modern commercial generators in this range come equipped with advanced features crucial for reliable B2B operations:
- Automatic Transfer Switch (ATS): Essential for seamless, automatic power transition during outages.
- Advanced Digital Controllers: Provide comprehensive monitoring (voltage, frequency, engine parameters), fault diagnostics, and event logging.
- Remote Monitoring & Management: Allows off-site access to generator status, alerts, and historical data via mobile or web applications, crucial for facility managers.
- Sound-Attenuated Enclosures: Reduce operational noise, important for urban or noise-sensitive commercial environments.
- EPA Compliance: Ensures adherence to environmental regulations regarding emissions.
- Load Bank Testing Capability: Allows for comprehensive testing of the generator’s full load capacity before critical deployment.
- Cold Weather Kits: For reliable starting in diverse climates.
What is the typical operational lifespan and warranty for commercial generators in this range?
With proper maintenance and regular servicing, a high-quality 100kW-199kW commercial generator is designed for a long operational lifespan, often exceeding 15-20 years or tens of thousands of operating hours. Key factors influencing longevity include:
- Manufacturer Quality: Reputable brands (Caterpillar, Cummins, Generac Industrial, Kohler) build units for demanding commercial use.
- Maintenance Schedule: Adhering to manufacturer-recommended service intervals is paramount.
- Application: Generators used for continuous prime power may have a different wear rate than those primarily used for standby.
What are the essential installation requirements and site considerations for a commercial 100kW-199kW generator?
Commercial generator installation is a specialized process that requires professional expertise to ensure safety, compliance, and optimal performance:
- Site Survey: Identifying the best location considering accessibility, ventilation, noise, and safety clearances.
- Permitting & Local Codes: Navigating intricate local, state, and federal regulations, including electrical, building, and environmental codes.
- Foundation: A robust concrete pad designed to support the generator’s weight and mitigate vibration.
- Fuel System Integration: Proper connection to natural gas lines, or installation of approved diesel/propane storage tanks and lines.
- Electrical Interconnection: Safe and compliant integration with the facility’s main electrical system via an ATS.
- Exhaust System: Proper routing and ventilation to meet safety and environmental standards.
How does a generator in this range contribute to my business’s return on investment (ROI)?
A 100kW-199kW generator provides a strong ROI for businesses by:
- Preventing Revenue Loss: Averting lost sales, production downtime, and service interruptions during outages.
- Protecting Assets: Safeguarding expensive equipment, inventory, and perishable goods.
- Avoiding Penalties: Preventing contractual penalties or regulatory fines due to service disruptions.
- Enhancing Reputation: Demonstrating reliability to clients, suppliers, and stakeholders.
- Insurance Savings: Some insurers may offer reduced premiums for businesses with robust backup power.
- Increased Productivity: Maintaining employee productivity by preventing work stoppages.
Are there specific compliance standards or certifications required for commercial generators?
Yes, commercial and industrial generators are subject to various compliance standards and certifications, depending on the application and location:
- NFPA 110: Standard for Emergency and Standby Power Systems, critical for healthcare and other life safety applications.
- UL Listings: Ensures electrical safety standards are met.
- EPA Emissions Standards: Governs exhaust emissions for engines (e.g., Tier 2, Tier 3, Tier 4 Final for diesel).
- Local Building & Electrical Codes: Compliance with regional regulations.
- OSHA: Workplace safety standards related to generator operation and maintenance.
Why should Generator Source be my preferred partner for a 100kW-199kW business generator?
Generator Source stands as a leading provider of robust power solutions for businesses because we offer:
- Expert Consulting: Deep industry knowledge to accurately assess your unique business power demands.
- Vast Inventory: Access to a wide selection of new and used 100kW-199kW commercial generators from top-tier brands.
- Seamless Project Management: From initial assessment and sizing to professional installation and commissioning.
- Comprehensive After-Sales Support: Including preventative maintenance plans, parts, and emergency service.
- Tailored Solutions: We understand that every business is unique and provide customized power strategies, not just products.
- Proven Track Record: Decades of experience serving diverse industries with critical power needs.
Our Values
Our mission is to provide reliable power solutions that empower businesses across industries, ensuring seamless operations with unmatched expertise and quality.
Since our founding over four decades ago, Generator Source has grown to become the country’s largest buyer and seller of commercial generators, with branches and service teams ready to deliver power solutions nationwide.


People First
We prioritize relationships, building trust and respect in every customer and team interaction.

Quality of work
We hold ourselves to the highest standards, delivering reliable power solutions backed by rigorous testing.

Dedication
We go the extra mile to support our customers and stand behind every generator we service and sell.

Expertise
With 50 years of industry experience, our team brings unmatched knowledge to every project.
Why Choose Generator Source?
- Over 50 years of generator system experience
- Extensive inventory of new and used generators
- Diesel and natural gas options in stock
- Field service teams in Colorado, Florida, and Texas
- EGSA-certified technicians and nationwide shipping
- Load tested, inspected, and ready-to-run inventory
In-Shop and Field Generator Support
If you purchase a 100kW to 199kW generator from Generator Source, our mobile field service teams are available to come directly to your site for diagnostics, repairs, and preventative maintenance. We provide fast response times and minimize downtime, whether your generator is installed at a data center, healthcare facility, job site, or remote industrial location. With service hubs in the Rocky Mountain region, the Gulf Coast, and Central Texas, we offer regional support to keep your 100kW–199kW generator running reliably. Our in-house facilities are equipped with load banks, advanced diagnostics, and skilled technicians capable of performing everything from oil changes to complete engine overhauls.
Quality Assurance Guaranteed
Certified 31-Point Inspection
Our inventory features both brand-new models and quality-tested used generators. We stock new, used, and surplus industrial generators, giving you flexible options to meet your power needs cost-effectively. Each pre-owned unit undergoes rigorous refurbishment and a multi-point inspection to ensure it performs to specification. We support multiple fuel types in this range, including diesel-powered sets known for their durability and natural gas generators favored for cleaner emissions.