Alternative Power Sources - Lesson 6 - Other Options for Home Backup Power
Another option for home backup power would be fuel powered generators. These can operate on natural gas, propane, and diesel fuel. Here’s a brief overview to help you understand each option:
Natural gas generators offer several advantages for home backup power. They are connected directly to your home’s natural gas line, providing an uninterrupted fuel supply, which is particularly useful during extended power outages. This eliminates the need for large fuel storage tanks required by propane or diesel generators. Additionally, natural gas generators produce fewer emissions compared to diesel, making them more environmentally friendly and compliant with stringent emission regulations.
However, there are also disadvantages to consider. These generators rely on the natural gas infrastructure, so in the event of a natural disaster that disrupts gas lines, the generator may become inoperable. Furthermore, professional installation is required to connect the generator to the natural gas line, which can add to the initial cost.
An example of a reliable natural gas generator is the Generac Guardian Series. This series offers a range of generators from 10kW to 24kW, making them suitable for whole-house backup power. They feature automatic transfer switches that ensure your home’s essential circuits are powered within seconds of a power outage. The Guardian series is known for its reliability and robust build, providing a seamless backup power solution for homeowners.
NOTE: During wildfire or emergency evacuations, many authorities recommend shutting off natural gas, propane, pilot lights, and electricity at the meter or source to reduce fire risks and remove fuel sources. Additionally, fire departments in some areas may restrict or prohibit the use of backup generators, even if you have one installed, particularly portable or high‑power units, so it’s important to check local policies. Utilities may also enact Public Safety Power Shutoffs (PSPS) during high fire-risk weather in coordination with emergency responders.
Propane generators offer several advantages for home backup power. One of the main benefits is the long shelf life of propane, which can be stored indefinitely without degrading, unlike gasoline that has a shorter shelf life. Propane burns cleaner than diesel and gasoline, reducing environmental impact and minimizing maintenance needs due to less carbon buildup in the engine. Additionally, many propane generators come with dual fuel options, allowing them to run on both propane and gasoline, providing flexibility in fuel choice.
However, there are also disadvantages to using propane generators. They require large propane tanks to store the fuel, which can take up significant space and require proper handling and installation. Propane also has a lower energy density compared to diesel, meaning it provides less power per gallon.
An example of a versatile propane generator is the Champion 100294. This dual-fuel generator can operate on both propane and gasoline, providing 4375 starting watts and 3500 running watts on propane. It features a reliable 224cc Champion engine and an easy-to-use fuel selector switch, making it a convenient and flexible option for home backup power.
Diesel generators offer several advantages for home backup power. Diesel fuel contains more energy per gallon than propane or gasoline, making diesel generators more efficient and capable of longer run times. Diesel engines are known for their durability and can run for extended periods under heavy loads, making them ideal for continuous power supply during long outages. Additionally, diesel fuel is generally less expensive than gasoline and has higher efficiency, leading to lower operational costs over time.
The disadvantages to using diesel generators are that they produce higher emissions, including pollutants such as nitrogen oxides and particulate matter, which can be a concern for air quality and regulatory compliance. Diesel generators also require more frequent maintenance to ensure reliable operation, including oil changes, filter replacements, and fuel system checks. Additionally, diesel engines are typically noisier than their natural gas and propane counterparts, which can be a drawback for residential use.
An example of a reliable diesel generator is the Cummins Onan Quiet Diesel Generator. Known for its reliability and used in many commercial and residential applications, this generator offers robust performance and long operational life. It features soundproofing technology to reduce noise levels, making it more suitable for residential use while providing efficient and reliable backup power.
A Gasoline-powered whole house generator is the Westinghouse WGen9500DF. This dual-fuel generator is capable of running on both gasoline and propane. When running on gasoline, it provides 9500 running watts and 12500 peak watts. While on propane, it delivers 8500 running watts and 11200 peak watts. The WGen9500DF features a powerful 457cc Westinghouse 4-stroke OHV engine with a durable cast iron sleeve, ensuring longevity and reliability. It comes with a large 6.6-gallon fuel tank, providing up to 12 hours of runtime at 50% load when running on gasoline.
This generator is transfer switch ready, including an L14-30R 30A 120/240V twist-lock outlet, making it convenient to connect directly to your home's electrical system. It is equipped with an electric start for easy operation, along with a remote start key fob for added convenience. The WGen9500DF offers dual-fuel capability, allowing it to run on both gasoline and propane, providing flexibility in fuel choice. Its user-friendly control panel features multiple outlets, including two GFCI 120V 5-20R standard household outlets, one transfer switch ready 120V L14-30R, and two 5V USB ports. Additionally, it has a built-in fuel gauge for easy monitoring of fuel levels and includes safety features such as automatic low oil shutdown and a digital hour meter for maintenance tracking.
While gasoline generators are generally noisier, this model includes a built-in muffler with a spark arrestor for quieter operation. Despite being powerful, the WGen9500DF includes never-flat wheels and a foldable handle for easier transport. The Westinghouse WGen9500DF is a versatile and powerful gasoline-powered generator suitable for whole-house backup power. Its dual-fuel capability, robust power output, and user-friendly features make it an excellent choice for homeowners seeking reliable backup power during outages.
Storing diesel fuel and gasoline to run your home during an emergency may seem inconvenient, but having that fuel stored can be highly beneficial beyond just powering your generator. In the event of an extended power outage or natural disaster, these stored fuels can also be used to fill up the gas tanks on your personal vehicles. This ensures that you have mobility and can use your vehicle for essential tasks such as commuting to work, fetching supplies, or evacuating to a safer location if necessary. Properly stored fuel can provide a critical backup, not only for your home's power needs but also for maintaining your transportation capabilities, which can be a lifeline during emergencies.
However, it’s important to store fuel safely and in compliance with local regulations. Use approved containers and store them in a well-ventilated area away from your living spaces. Regularly rotate your fuel supply to keep it fresh, and consider using fuel stabilizers to extend its shelf life. By taking these precautions, you can ensure that your stored fuel remains a valuable asset in a wide range of emergency situations.
Hybrid System
There are many options to consider for home backup power. One effective solution is a hybrid backup emergency power system that integrates home solar panels, a power bank battery, and a fuel-powered generator. This system offers a reliable and flexible approach, leveraging the strengths of each component to ensure a continuous power supply during outages. By combining renewable energy from solar panels, stored energy in the battery, and the immediate power available from a fuel-powered generator, you can maintain essential functions in your home, even during extended power disruptions.
A hybrid solar power system combines photovoltaic (PV) panels, energy storage batteries, and a backup generator. The PV panels convert sunlight into electricity, which can be used to power your home directly or stored in a battery bank for later use. Excess energy can also be fed back into the grid, providing additional financial benefits. During times when solar energy is insufficient, such as at night or during cloudy days, the battery bank supplies the stored power. If the battery is depleted, a fuel-powered generator (running on natural gas, propane, or diesel) can automatically kick in to provide necessary power, ensuring that your home remains powered.
Components of a Hybrid System
Solar Panels: These capture sunlight and convert it into direct current (DC) electricity.
Battery Bank: Stores the excess energy produced by the solar panels for use during non-sunny periods. Modern systems typically use lithium-ion batteries due to their efficiency and longevity.
Hybrid Inverter: Converts DC electricity from the solar panels and batteries into alternating current (AC) used by household appliances. It also manages the power flow between the solar panels, battery, and generator.
Fuel-Powered Generator: Acts as a backup to the battery system, providing power when solar and battery resources are insufficient.
Charge Controller: Protects the batteries from overcharging, which can extend their lifespan.
Metering/Monitoring System: Tracks energy production, usage, and storage, helping to optimize the system's performance.
Benefits of a Hybrid System
Reliability: Provides a continuous power supply by seamlessly switching between solar, battery, and generator power.
Energy Independence: Reduces reliance on the grid, offering protection against power outages.
Cost Savings: Can lower electricity bills by using stored solar energy during peak price times.
Environmental Benefits: Utilizes renewable energy sources, reducing carbon footprint and reliance on fossil fuels.
Example System
A well-known example of a hybrid system is the Generac PWRcell. This system includes solar panels, a battery bank, and an integrated generator. It offers robust power management, remote monitoring, and seamless integration to ensure your home remains powered during outages.
Incorporating solar panels, a power bank battery, and a fuel-powered generator can provide a comprehensive solution for home emergency power needs. It ensures reliability, offers cost savings, and supports sustainability. For those concerned about power outages and looking to reduce their carbon footprint, this approach provides a balanced and efficient alternative energy solution.
