Solar vs Generators...Which One Is The Best?

Introduction

In this article, we're going to compare solar and gas generators as backup power options. With an aging grid and an increase in extreme weather events, there are more frequent incidents of power grid failures. Power is an essential part of our lives, so knowing your options for backup power is crucial. This article will cover the pros and cons of both solar and gas generators, how to use them when the grid goes down, what the perfect backup system looks like, and my final thoughts after years of working with these systems.

Pros and Cons of Both Systems

Gas Generators (Internal Combustion Engine Generators)

These are traditional generators that most people are familiar with.

Pros:

On-Demand Power: Ready to go as long as you have a fuel source such as propane, gasoline, or diesel.
Lower Entry Cost: Generally cheaper upfront compared to solar generators and the required solar panels.
Multi-Fuel Options: Dual fuel or tri-fuel generators offer flexibility in fuel sources. Propane can be stored for years.

Cons:

Noise: Very noisy, which can draw unwanted attention.
Fumes: Dangerous fumes such as carbon monoxide can be lethal if not managed correctly.
Fuel Limitations: Limited to the fuel you have on hand; producing more gas or propane in a post-disaster scenario can be challenging.
Maintenance and Parts: Requires regular maintenance and basic repair skills. Limited to the parts you can store.
Mobility: Not very mobile; bulky and hard to transport without a large vehicle.

Solar Generators

These are quieter, more environmentally friendly alternatives.

Pros:

Unlimited Power: As long as there's sunlight, you can generate power.
Noise-Free: No operational noise, which helps with operational security (OPSEC).
No Fumes: Safe to run indoors as there's no carbon monoxide risk.
No External Fuel Source Needed: No need to store large amounts of fuel.
Low Maintenance: Only requires periodic charging and discharging.
Mobility: Easier to transport compared to gas generators.

Cons:

Upfront Cost: Typically more expensive initially compared to gas generators.
Dependence on Sunlight: Solar panels don't always produce at 100% efficiency, and cloudy days can significantly reduce power generation.
Solar Panel Setup: Roof or ground mounts are less effective than portable panels which can be directed at the sun.

Using Generators When the Grid Goes Down

When the grid goes down, you can run your solar generator inside your house and connect it to outdoor solar panels. Gas generators must be kept away from windows, garages, and HVAC intakes due to the risk of carbon monoxide poisoning.

Extension Cords and Transfer Switches

Heavy Gauge Extension Cords: Necessary for carrying a higher load without overheating.
Transfer Switch: Can be installed to connect to your main panel, allowing you to power essential circuits. An electrician should handle this installation.

The Perfect Combination

Instead of choosing one over the other, consider having both solar and gas generators. This approach allows you to use solar power when available and gas generators as a backup. Combining both can extend your fuel supply, as the gas generator can recharge solar generator batteries, thus reducing the running time of the gas generator and conserving fuel.

Example Setup

The EcoFlow Delta Pro 3 dual fuel generator is an excellent example of combining both systems, as it can recharge when the batteries are low and turn off when they are sufficiently charged.

Final Thoughts

Consider Your Location

Sunlight Availability: If you live in a sunny area like Southern California, solar is a great option. In less sunny regions, a combination may be more effective.
Budget: Start with what you can afford and gradually build up your backup power system.

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For any questions or feedback, feel free to comment below. Always stay safe out there.

Keywords

Backup power
Gas generators
Solar generators
On-demand power
Operational security (OPSEC)
Carbon monoxide
Transfer switch
Solar panel efficiency

FAQ

Q1: What are the main advantages of gas generators over solar generators? Gas generators provide on-demand power, usually have a lower upfront cost, and can use multiple fuel sources like propane, gasoline, or diesel.

Q2: Can you run a gas generator indoors? No, gas generators emit carbon monoxide, which is lethal if not ventilated properly. They should always be run outdoors away from any windows or air intakes.

Q3: Are solar generators maintenance-free? While they require significantly less maintenance than gas generators, solar generators still need occasional charging and discharging to keep the batteries healthy.

Q4: Is it possible to use both gas and solar generators together? Yes, combining both can be very effective. Gas generators can be used to recharge solar generator batteries, extending your available power and conserving fuel.

Q5: What should be considered when setting up a backup power system? Your location's sunlight availability, budget, and power needs should all be considered when setting up a backup power system.

Q6: Can solar panels generate 100% of their rated power? Rarely; solar panels typically operate at 45-70% efficiency depending on sunlight and conditions.

Q7: What is a transfer switch, and why would I need one? A transfer switch allows you to connect your generator to your home's power panel, enabling you to power essential circuits during an outage.