Propane vs. Natural Gas Standby Generator Installation

When the power goes out in Halifax—and it will go out—your standby generator becomes your lifeline. But before you can protect your home during the next ice storm, you face an important decision: propane or natural gas?

Both fuels power whole-home generators reliably, but the right choice for your rural Virginia property depends on fuel availability, storage requirements, and long-term costs. Natural gas offers convenience if you already have service, while propane provides independence when you’re miles from municipal gas lines.

This matters because most of Halifax County doesn’t have natural gas service. And for families relying on well pumps, choosing the wrong fuel could mean days without water during extended outages.

Solutions Heating and Cooling serves Halifax, South Boston, and surrounding communities with comprehensive home services including the electrical and HVAC work that generator installations require.

Is propane or natural gas better for a standby generator?

The better fuel depends on your property’s natural gas availability:

Natural Gas Generators:

• Lower operating costs ($20-40 per day during outages)
• No fuel storage tanks required
• Only works if you have existing gas service

Propane Generators:

• Works anywhere, even without utility connections
• Unaffected by gas line damage during storms
• Higher fuel costs ($30-60 per day during outages)
• Requires on-site propane tank

For Halifax County: Most homeowners choose propane because natural gas service isn’t available outside town limits.

Natural Gas Availability in Halifax and Southside Virginia

Before you can even consider a natural gas generator, you need to know if gas service exists at your property. And here’s the reality for most Halifax County homeowners: it probably doesn’t.

Where Natural Gas Service Exists in Halifax County

Natural gas service in Southside Virginia is limited. While some municipalities have access to natural gas infrastructure, many rural areas throughout Halifax County rely on propane for generator fuel and home heating.

To find out if natural gas service is available at your specific address, contact local utilities or your generator installer for a service availability check.

Not sure if natural gas is available at your property? Call (434) 404-4461 and we’ll check service availability in your area and explain your options.

What It Means If You Don’t Have Natural Gas Service

You can’t just run gas lines yourself to get service. Even if the nearest gas main is only half a mile down the road, extending service to your property involves working with the utility company—and the costs add up fast.

Gas line extensions cost $5-15 per linear foot. For a rural property a quarter mile from the nearest gas main, you’re looking at $30,000-50,000 just to get service to your house—before purchasing a generator. For most rural properties, these extension costs make propane the more practical choice.

Future Natural Gas Expansion Plans

Natural gas infrastructure expansion in rural areas like Halifax County faces economic challenges—the investment required to serve low-density areas doesn’t typically make financial sense for utility companies. While some targeted expansions occur for industrial or commercial development, widespread residential service expansion to rural areas isn’t part of current utility plans. Propane remains a reliable long-term solution for most rural properties.

Propane Generator Systems: How They Work for Rural Properties

If you don’t have natural gas service—and most Halifax homeowners don’t—propane becomes your practical solution for standby power.

Propane Tank Size Requirements for Whole-Home Generators

The propane tank is the biggest physical component of your generator system, and sizing it correctly matters. Too small, and you’ll run out of fuel during extended outages.

For most whole-home generators in the 20-22kW range (which covers typical 2,000-2,500 sq ft homes), a 500-gallon propane tank is the minimum. That’ll give you roughly 3-4 days of runtime if the generator’s running continuously to keep your heat, water heater, well pump, and essential appliances going. [1]

A lot of homeowners opt for 1,000-gallon tanks instead. Yes, it costs more upfront, but it provides 7-10 days of runtime during extended outages. Given that we’ve had multi-day ice storm outages in Halifax that stretched beyond four days, that extra capacity provides real peace of mind.

You’ve got two tank placement options: above-ground or underground. Above-ground tanks cost $2,000-3,000 for the tank, delivery, and concrete pad installation. Underground tanks run $4,000-6,000 installed but keep your yard looking cleaner and avoid cold-weather performance issues that can affect above-ground tanks in extreme temperatures.

Both options need a level concrete pad or base, and tanks must meet setback requirements from your house—typically 10 feet minimum, though this varies by local code.

Propane Delivery and Refill Logistics in Halifax

Several propane suppliers serve Halifax County, and you’ll want to establish a relationship with one before you ever need emergency service. Most suppliers offer automatic delivery programs where they monitor your tank level and schedule deliveries before you run low. This costs a bit more than will-call service, but it means you’re never caught with an empty tank when storm season hits.

Delivery schedules can get tight during winter, especially after major outages when everyone’s refilling at once. Most suppliers recommend keeping your tank above 30% during winter months to avoid delays.

Propane Storage Safety and Regulations

Your tank needs to meet specific setback distances from your house, property lines, and any ignition sources—typically 10 feet from the house, though exact requirements depend on tank size and local codes. [2] The propane company handles all of this during installation.

One advantage propane has over gasoline: it doesn’t go bad. You can keep propane stored in your tank for years without worrying about fuel degradation or the maintenance headaches that come with gasoline-powered portable generators.

Tanks do require periodic inspections and recertification. Above-ground tanks need visual inspections every few years to check for rust, damage, or leaks. Underground tanks have more stringent inspection requirements. Your propane supplier typically handles scheduling these inspections as part of their service.

Natural Gas Generator Systems: Requirements and Limitations

For homeowners with existing natural gas service, generator installation looks different. The fuel is already there, but you’ll need to make sure your system can handle the additional load.

Gas Line Sizing for Generator Load

Just because you have natural gas service doesn’t automatically mean your existing gas lines can support a generator.

Your home’s gas line was originally sized to handle your water heater, furnace, and maybe a gas stove or dryer. A whole-home generator adds significant demand—often requiring a dedicated line from your meter or gas line upgrades to maintain adequate pressure.

This is similar to electrical panel capacity concerns. Just like you can’t keep adding circuits to an old 100-amp panel without running into problems, you can’t keep adding gas appliances to an undersized gas system. The gas company or your installer will need to do a load calculation to determine if your existing service can handle a generator, or if you need upgrades first.

Generator Placement with Natural Gas Service

Natural gas generators need to be within reasonable distance of your gas meter—typically within 50-75 feet, though this varies based on line sizing and pressure requirements.

Code requirements for outdoor generator installation are the same whether you’re using propane or natural gas: the unit needs to be a certain distance from windows, doors, and fresh air intakes (usually 5 feet minimum), and it needs to sit on a level concrete pad or gravel base.

The advantage of natural gas is that you don’t have to figure out where to put a 500-1,000 gallon propane tank. Your generator sits on its pad, gets connected to your existing gas line, and that’s it.

Natural Gas vs. Propane: Key Differences

What Happens to Natural Gas During Major Storms

Natural gas lines can be damaged during major storms. Ice storms that take down trees, severe winds, or flooding can all potentially damage gas infrastructure. It’s rare compared to electrical outages—gas lines are underground in most areas, so they’re protected from most weather events. But it does happen.

If a gas main gets damaged in your area, you lose gas service until repairs are made. Unlike propane where you’ve got fuel stored on-site, natural gas generators have no backup option. Gas line damage is rare, but unlike propane systems with on-site fuel storage, natural gas generators depend entirely on utility infrastructure remaining intact.

Operating Costs: Propane vs. Natural Gas Generators

Installation requirements matter, but most homeowners want to know the bottom line: what will this cost to run when the power goes out? [3]

Daily Fuel Costs During Power Outages

With natural gas, you’re looking at $20-40 per day for a typical 20kW generator running 24 hours to keep your heat, water heater, well pump, and essential appliances going.

Propane costs more—figure $30-60 per day for the same generator under similar conditions. The cost difference comes from fuel pricing—propane costs more per unit of energy than natural gas, resulting in 30-40% higher operating costs during outages.

For example: For a 4-day outage in a typical 2,000 sq ft home, propane costs would run $120-160 versus $80-120 for natural gas to keep heat, water, and refrigeration running.

For most Halifax County homeowners, this fuel cost difference matters less than you’d think because you can’t choose natural gas anyway—it’s simply not available. But for the small percentage of homeowners who do have both options, natural gas saves you 30-40% on fuel costs during outages.

Annual Maintenance and Fuel Standby Costs

If you have a propane tank, you’re typically paying a tank rental fee to your propane supplier—usually $50-150 per year depending on tank size and supplier policies.

Natural gas customers pay a monthly service fee to the gas utility regardless of consumption—typically $15-25 per month, or $180-300 per year in standby costs.

Annual maintenance runs $200-300 for oil changes, filters, and system testing—identical for both fuel types.

Looking at total cost of ownership over 10 years, natural gas comes out ahead if you already have gas service. But if you’d need to pay $30,000-50,000 to extend gas lines to your rural property just to get service, propane is far more cost-effective even with higher fuel costs.

Electrical Panel Requirements and Installation Costs

The fuel type you choose doesn’t change your electrical requirements. Whether you’re running propane or natural gas, the electrical work is identical.

Both generator types need a transfer switch installed between your main electrical panel and the generator. The transfer switch automatically disconnects your home from the utility grid when the generator starts, preventing backfeeding that could endanger line workers.

Your electrical panel capacity matters too, just like with HVAC upgrades. Homes built in the 1980s-90s often have 100-amp panels already running near capacity. The transfer switch installation requires space in your panel, and if your panel’s outdated or full, you might need a panel upgrade—adding $1,500-3,000 to your project cost regardless of fuel type.

Here’s how installation costs compare:

The cost difference comes almost entirely from the propane tank and its installation. The generator itself costs the same—most manufacturers make dual-fuel units that can run on either propane or natural gas with a simple conversion kit.

Solutions Heating and Cooling serves Halifax and Southside Virginia with comprehensive electrical, HVAC, and plumbing services. Owner Shad Dortch and his licensed team handle the complete generator installation process—from electrical panel assessment and transfer switch installation to fuel line connections and generator placement. Our electrical contractor licenses and multi-trade capabilities mean you’re working with one company that understands how your generator integrates with your home’s existing systems, rather than coordinating between separate electrical and HVAC contractors.

Making the Decision: Which Fuel Is Right for Your Home?

You’ve seen the availability, costs, and installation needs. Now let’s put it together into a decision framework.

Choose Natural Gas If…

• You have existing gas service – If natural gas lines already run to your property, this is your most cost-effective option
• You want lowest operating costs – Natural gas will save you 30-40% on fuel costs during outages compared to propane
• You prioritize convenience – No tank to maintain, no deliveries to schedule, no fuel level to monitor
• You’re in town limits – Halifax and South Boston residents with gas service get the simplest installation

Choose Propane If…

• You’re outside gas service areas – This describes most of Halifax County; propane works anywhere
• You want fuel independence – Your fuel supply sits on your property, unaffected by utility infrastructure damage
• You need reliability during infrastructure damage – Ice storms that damage gas lines won’t affect your propane supply
• You’re anywhere in rural Halifax County – Propane is the practical solution for properties beyond town limits

Ready to protect your Halifax home from the next power outage? 

Call Solutions Heating and Cooling at (434) 404-4461 to discuss propane or natural gas generator options for your property. We’ll assess your electrical panel, check fuel availability at your address, and provide a straightforward estimate for complete installation—no coordination with multiple contractors required.

Your Propane and Natural Gas Generator Questions Answered

Which fuel works best for standby generators – propane or natural gas?

The best fuel for your standby generator depends on whether natural gas service is available at your property. Natural gas offers lower operating costs ($20-40 per day during outages) and eliminates the need for fuel storage tanks, but only works if you already have gas service. Propane costs more to operate ($30-60 per day) and requires an on-site tank, but works anywhere regardless of utility connections. For most Halifax County properties outside town limits, propane is the practical choice since natural gas service isn’t available.

How many kilowatts does a whole-home generator need?

Most homes between 2,000-2,500 square feet need a 20-22kW generator to handle your heat, water heater, well pump, and necessary appliances during outages. The exact size you need depends on your electrical panel capacity and which circuits you want powered during an outage. Homes with older 100-amp panels running near capacity may need panel upgrades before generator installation. We calculate your specific requirements by assessing your panel and determining which loads you need to run simultaneously during power outages.

What’s the runtime for a 500-gallon propane tank with a generator?

A 500-gallon propane tank provides roughly 7-10 days of continuous runtime for a typical 20-22kW whole-home generator. This assumes the generator is running continuously to power your heat, water heater, well pump, and necessary appliances during an extended outage. Many homeowners in Halifax choose 1,000-gallon tanks instead, which double that runtime to handle the multi-day ice storm outages we sometimes experience. Tank size depends on how long you need to run without refilling during winter when delivery schedules get tight.

Resources

1. https://www.generac.com/home-standby-generators/faq/
2. https://propane.com/propane-safety-in-your-home/
3. https://www.eia.gov/dnav/pet/pet_pri_wfr_a_epllpa_prs_dpgal_w.htm