Solar Power for Tiny Homes or Small Cabins: How Much Do You Need for Off-Grid Living?

Solar Power for Tiny Homes or Small Cabins: How Much Do You Need for Off-Grid Living?

By Renogy
renogys blog Oct 27th 2023

The tiny home movement is sweeping the nation, and what better way to embrace sustainable living than with solar power? If you're considering adopting solar for your tiny home or beginning your off-grid journey, this comprehensive guide will walk you through the essentials.

From the benefits of solar energy to a step-by-step breakdown of building your own solar system, here's everything you need to know.

Read on to learn more.

Why Should You Use Solar Power In Your Tiny House?

Tiny homes are all about maximizing efficiency in a minimal space, and what better way to extend that philosophy than by embracing solar energy?

With the tiny home market poised to reach an impressive $6.9 billion by 2029, more and more people are seeking out sustainable, flexible, and cost-effective living solutions.

Let's delve into some key benefits that make solar power a compelling choice for tiny homeowners.


One of the main pain points for any homeowner is utility costs. For tiny homeowners, the motivation is even stronger; 80% cite financial savings as a key factor in their decision to go solar.

By generating your own electricity, you can dramatically cut down your energy bill. Given that the system's weight and dimensions are tailored for tiny homes, you can maximize efficiency without cluttering your limited space.

Eco-Friendly Living

As we collectively move toward a greener future, solar energy stands out as a sustainable choice. This is particularly true for tiny homeowners, as 35-40% of them already live completely off-grid. Solar power reduces your carbon footprint and aligns perfectly with the ethos of tiny home living, which often embraces a more sustainable, back-to-basics approach to life.


One unique aspect of tiny homes is their mobility; 75% are on wheels and move at least once a year. Solar power systems can be just as mobile. With clever roof-mounted or ground-mounted installations, you can easily set up and dismantle your solar panels whenever you decide to change your scenery, making it a seamless part of your nomadic lifestyle.

Increased Home Value

Beyond the immediate benefits, installing a solar power system can significantly increase the value of your tiny home. A solar setup can be a powerful selling point, emphasizing savings and eco-friendliness while future-proofing the home. As more people become environmentally conscious, a tiny home equipped with a solar power system becomes an increasingly attractive option in the market.

How Much Energy Does it Take to Power a Tiny House

Before you can set up a solar energy system that meets your needs, you need to understand just how much energy those needs require. Thankfully, calculating your tiny home's energy consumption isn't as complicated as it sounds.

There are generally two ways to approach this: you can either review your existing utility bills for a ballpark figure or create a list of all the appliances and devices you'll use in your tiny home and calculate their daily energy consumption.

To make it easier, we've prepared an example you can use to map out your energy needs:

Appliance/Device Power Rating (Watts) Daily Usage (Hours) Daily Energy Consumption (Watt-Hours)
LED Light Bulb 10 5 50
Refrigerator 150 24 3600
Laptop 45 4 180
Space Heater 1000 2 2000

To find the daily energy consumption, multiply the power rating by the daily usage. For example, an LED light bulb rated at 10 Watts used for 5 hours daily would consume 50 Watt-hours daily.

By mapping out your appliances and their energy needs, you can determine the size of the solar energy system you'll need. This step is crucial in avoiding the disappointment of an under- or over-built system.

And don't forget, tools like the Renogy solar panel calculator are there to guide you through this process, making it even more straightforward.

How Many Solar Panels Do You Need?

After figuring out how much energy your tiny home needs. The next logical question is: how many solar panels will it take to generate that energy? There is no one-size-fits-all answer; it varies based on several factors unique to you and your home, including:

Your Energy Consumption

That handy table you made to calculate your daily energy needs can be a good starting point here. The more devices and appliances you power, the more energy you need. Hence, more panels.

How Many People Are at Home

More people usually mean more energy consumption. If you're planning a tiny home for more than just yourself, factor that into your calculations.


Solar panels need room to soak up the sun, and tiny homes aren't exactly known for their expansive roof space. However, if the roof can't accommodate your solar dreams, consider using ground and pole mounting options.

Additionally, high-efficiency panels may cost more upfront but generate more power in less space. This is a boon for tiny homes where space is at a premium.

Location, Location, Location

Your geographical location affects how much sunlight your panels will receive. The angle of your panels can be adjusted to maximize sun exposure, optimizing the energy you can produce each day.

For context, imagine your tiny home needs 24,000 watt-hours per day. A single 250-watt panel soaking up sunlight for 8 hours can generate 2,000 watts a day. Doing some quick math, you'd need about 12 panels to meet your daily energy consumption.

Building a Solar System for Your Tiny Home (Step-by-Step)

Say you decide that solar energy is the way to go for your tiny home—fantastic choice! The question is: how do you go from idea to implementation? No need to worry; we have you covered.

Here’s a step-by-step guide to illuminate your solar journey:

Step 1: Set a Budget

Like any major project, setting a realistic budget is essential. Solar panels, charge controllers, inverters, batteries, and installation all come with costs. Knowing your budget will help you decide which components to splurge on and where you can save.

Step 2: Decide Where It Will Go (Rooftop vs. Ground)

Since space is often a premium in tiny homes, you need to decide whether your solar array will go on the rooftop or require a ground-based system. Ground systems are easier to clean and maintain but may take up valuable land space. Rooftop systems are space-efficient, but consider the weight and whether your structure can handle it.

Step 3: Choose Your Solar Panels

With your budget and placement decided, it's time to pick your panels. Remember, efficiency is a priority, especially when working with limited space. Look for high-quality panels that provide the most power for their size.

Step 4: Find a Racking System

The racking system holds your panels in place, either on the ground or on your roof. Choose one that is durable and suited to your specific setup. Ground systems often require a more robust frame, while rooftop systems need to be lightweight yet secure.

Step 5: Put It All Together

Now that you have all the pieces to your solar puzzle, it's time to put it all together. Wiring your system is a crucial step for optimal performance, and doing so correctly will help you get the most out of your solar panel system.

Unless you have experience working with electrical systems, we recommend seeking professional help. Our experts at Renogy can guide you through the process to ensure everything runs smoothly and safely.

How Renogy Can Help

You've armed yourself with the know-how to leap solar energy for your tiny home. But why go it alone when Renogy is here to be your trusted partner in this renewable journey? We've specialized in creating tailored solutions to meet the unique needs of the tiny home market.

If you're seeking a comprehensive solution, check out our Renogy 1.2kW Advanced Kit. Not only does it come with the latest 1.2kW high-efficiency PERC panels, but it also includes our all-in-one Lycan 5000 power box with plug-and-play installation. 

Say goodbye to tangled cables and complicated setups. Plus, stay in the loop with Bluetooth and Wi-Fi monitoring to track your energy usage and system health right from your phone.

Ready to make the sustainable switch?  Contact Renogy today for more information, or explore our Tiny House Solutions and find an option that suits your lifestyle.

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