Propane Standby Generators
Propane standby generators provide automatic, on-site backup power that keeps critical systems operating under grid disruptions and strengthens energy resilience for homes and commercial facilities.
Automatic Power, Designed for Continuity
The U.S. Department of Energy has projected that blackouts could increase by as much as 100 times by 2030as electricity demand rises. As grid strain and severe weather events intensify, reliable backup power has become a critical part of energy planning. Propane standby generators are permanently installed and integrated into a building’s electrical system, delivering seamless, automatic operation during outages and supporting essential systems such as heating and cooling, refrigeration, security, and communications.
When Reliability Is Non-Negotiable
Propane standby generators are a reliable option for homes, businesses, and facilities where power is essential, including locations that cannot afford downtime, face frequent outages, rely on mission-critical systems, or require low-emission, low-noise operation.
Use the Generator Sizing Tool
Use this interactive tool to see how switching from electric to propane appliances reduces demand on a home’s backup power system, allowing you to specify a smaller, more cost-effective standby generator.
When more key systems run on propane, the standby generator supports less electrical demand, making it possible to specify a smaller unit that can save thousands in upfront costs while maintaining reliable whole-home backup power.
The Advantages of Propane Standby Power
Automatic Power Restoration
Automatically restores power within seconds of an outage, keeping critical systems running without interruption.
On-Site Energy Security
On-site power storage supports continuous operation during outages, reducing reliance on real-time fueling or grid-dependent refueling systems.
Always-Ready Energy
Stable, available energy that does not degrade over time, reducing maintenance concerns common with diesel generators.
Cleaner Operation
Fewer harmful emissions than diesel, supporting cleaner air in homes, workplaces, and communities.
Quieter Performance
Quieter operation than diesel generators makes propane well suited for homes, businesses, and noise-sensitive locations.
Standby Generator Options by Use Case
Power requirements vary across homes, businesses, and facilities. This table highlights typical standby generator sizes based on application and power requirements.
Residential
| Application | Typical Systems Supported | Typical Generator Size (kW) | Typical Use Case |
|---|---|---|---|
| Essential Home Standby | Lighting, refrigerator/freezer, Wi-Fi/router, outlets, sump pump, garage door | 8–12 kW | Small homes or homeowners protecting only critical circuits during outages |
| Partial Home Standby | Essential circuits plus furnace or boiler, well pump, small A/C, microwave | 14–18 kW | Mid-size homes prioritizing comfort and safety without full electrification |
| Whole-Home Standby (Gas Appliances) | Lighting, HVAC, refrigeration, water heating (gas), cooking, laundry | 20–24 kW | Common whole-home solution when propane powers major appliances |
| Large Home / High-Load Home | Multiple HVAC units, pool equipment, workshops, larger homes | 26–30 kW | Large residences or homes with higher simultaneous electrical demand |
Typical Systems Supported: Essential circuits plus furnace or boiler, well pump, small A/C, microwave
Typical Generator Size (kW): 8–12 kW
Typical Use Case: Small homes or homeowners protecting only critical circuits during outages
Typical Systems Supported: Essential circuits plus furnace or boiler, well pump, small A/C, microwave
Typical Generator Size (kW): 14–18 kW
Typical Use Case: Mid-size homes prioritizing comfort and safety without full electrification
Typical Systems Supported: Lighting, HVAC, refrigeration, water heating (gas), cooking, laundry
Typical Generator Size (kW): 20–24 kW
Typical Use Case: Common whole-home solution when propane powers major appliances
Typical Systems Supported: Multiple HVAC units, pool equipment, workshops, larger homes
Typical Generator Size (kW): 26–30 kW
Typical Use Case: Large residences or homes with higher simultaneous electrical demand
Light Commercial
| Application | Typical Systems Supported | Typical Generator Size (kW) | Typical Use Case |
|---|---|---|---|
| Small Retail & Office | Lighting, POS systems, refrigeration, HVAC, security systems | 30–50 kW | Retail stores, offices, small restaurants, pharmacies, professional services |
Typical Systems Supported: Lighting, POS systems, refrigeration, HVAC, security systems
Typical Generator Size (kW): 30–50 kW
Typical Use Case: Retail stores, offices, small restaurants, pharmacies, professional services
Commercial & Operationally Critical Facilities
| Application | Typical Systems Supported | Typical Generator Size (kW) | Typical Use Case |
|---|---|---|---|
| Grocery / Food Service | Refrigeration/freezers, lighting, kitchen support equipment, HVAC | 50–75 kW | Grocery stores, restaurants, food service operations |
| Healthcare / Assisted Living | Medical equipment, lighting, HVAC, communications, refrigeration | 75–125 kW | Clinics, assisted living facilities, critical care environments |
| Agricultural Operations | Ventilation fans, pumps, feeding systems, lighting, controls | 50–100 kW | Farms, livestock facilities, agricultural buildings |
| Data & Communications | Servers, networking equipment, cooling systems, security | 100–250 kW | Data rooms, telecom facilities, communications hubs |
| Industrial / Manufacturing (Partial Load) | Process equipment, motors, controls, lighting, HVAC | 250–500 kW | Manufacturing plants backing up critical production systems |
Typical Systems Supported: Refrigeration/freezers, lighting, kitchen support equipment, HVAC
Typical Generator Size (kW): 50–75 kW
Typical Use Case: Grocery stores, restaurants, food service operations
Typical Systems Supported: Medical equipment, lighting, HVAC, communications, refrigeration
Typical Generator Size (kW): 75–125 kW
Typical Use Case: Clinics, assisted living facilities, critical care environments
Typical Systems Supported: Ventilation fans, pumps, feeding systems, lighting, controls
Typical Generator Size (kW): 50–100 kW
Typical Use Case: Farms, livestock facilities, agricultural buildings
Typical Systems Supported: Servers, networking equipment, cooling systems, security
Typical Generator Size (kW): 100–250 kW
Typical Use Case: Data rooms, telecom facilities, communications hubs
Typical Systems Supported: Process equipment, motors, controls, lighting, HVAC
Typical Generator Size (kW): 250–500 kW
Typical Use Case: Manufacturing plants backing up critical production systems
Large Facility & Campus
| Application | Typical Systems Supported | Typical Generator Size (kW) | Typical Use Case |
|---|---|---|---|
| Large Facilities / Campus Standby | Multiple buildings, HVAC systems, critical operations | 500–1,000+ kW | Campuses, large industrial sites, major infrastructure |
Typical Systems Supported: Multiple buildings, HVAC systems, critical operations
Typical Generator Size (kW): 500–1,000+ kW
Typical Use Case: Campuses, large industrial sites, major infrastructure
Build Your Standby Power Strategy
Connect with a propane power generation expert to evaluate project requirements, confirm appropriate system configuration, and plan a standby power solution designed for reliable, on-site energy and long-term performance.
TALK TO A POWER GENERATION EXPERTPropane Powers More Than Standby Generators
Propane supports a full range of power generation solutions, including prime power, microgrids, combined heat and power (CHP), EV charging, and mobile power. Together, these applications help facilities plan for resilience, improve efficiency, and maintain control across changing energy demands.