How Many Solar Panels to Power a Mobile Home

Joe Brennan
May 13, 2023

Solar power is the future of sustainable living, and mobile homes are no exception. If you're a mobile homeowner in Dublin, Meath, Kildare, Drogheda, or any surrounding county, this guide is for you. We'll provide you with a detailed understanding of how many solar panels you need to power a mobile home.

Understanding Mobile Homes and Solar Power

Mobile homes, also known as manufactured or tiny homes, are gaining popularity due to their affordability and convenience. Coupled with solar power, these homes can be the epitome of energy-efficient living. However, knowing how many solar panels are required to power such a home is crucial to maximise the benefits of solar energy.

Estimating Solar Power Requirements for a Mobile Home

The size of a mobile home typically ranges between 500 to 800 square feet, but the electricity consumption varies significantly based on the appliances used and the lifestyle of the inhabitants.

The average energy consumption of a mobile home is estimated to be between 4100 and 4500 watts daily. With heating and cooling systems accounting for approximately 80% of the total power usage, the daily power consumption breakdown might look like this:

  • Computer usage: 300W
  • Mobile device: 30W
  • Lighting: 30W
  • Refrigerator: 800W
  • Heating/Cooling: 3000W

This calculation assumes cooking with propane gas and the absence of high-energy-consuming devices such as a microwave, coffee maker, or gaming console. If your home includes these appliances, the power requirements will be higher.

Calculating Solar Panel Requirements

Having established the daily energy requirement of 4000–4500 watts, the next step is to calculate the number of solar panels needed. Each solar panel's capacity is recommended to be 300 watts. Anything smaller might consume more space than is practical. With a 300W rating, each solar panel can theoretically produce 1500 watts daily (300W x 5 hours of average sunlight).

However, this does not necessarily mean that three 300-watt panels will suffice. The power demands of a house extend beyond a brief period, and the hourly watt usage can exceed 1000 watts, especially when an air conditioner or heater is running all day along with other appliances.

Therefore, a reasonable estimate would be around 15 solar panels, each rated at 300 W. This would account for the peak power requirements of your appliances and provide a buffer for times when solar production might be lower than average.

Important Considerations for Solar Power Production

There are several key factors to consider when estimating solar power production:

  • Solar panel ratings are based on peak output. In reality, a 300W solar panel might only consistently produce 200W-250W.
  • Solar panel output drops significantly during the winter. Unexpected weather conditions such as a sudden downpour can halt production altogether.
  • Geographical location also affects solar power output. For instance, if you live in a colder region, a 300W solar panel may only produce half its rated output.
  • Solar panel efficiency is at its peak during the summer months, so it's wise to have more panels than needed to offset drop in production during the winter.

Given these considerations, it's advisable to have additional solar power capacity as a contingency. A well-sized battery bank or solar generator can also serve as a backup.

Solar Power System Components for a Mobile Home

A complete solar power system for a mobile home includes more than just solar panels. The following components are also required:

  • 15 x 300W solar panels
  • 1200ah lead acid battery bank
  • 60A MPPT charge controller
  • 5000W inverter
  • Backup generator (optional)

Further, the system should also include a surge protector, circuit breakers, a system control panel, and all necessary cables, connectors, and wiring.

Choosing the Right Batteries

Batteries are an essential part of a solar power system. For mobile homes, lead acid batteries are a viable option. They are relatively cheaper and offer a higher number of life cycles compared to AGM batteries. Although they require more maintenance than lithium batteries, the cost savings make them a popular choice.

Installing Solar Panels on a Mobile Home

While it's technically possible to install solar panels on a mobile home, it's often impractical due to weight constraints. Mobile home roofs typically cannot support the weight of several solar panels.

An alternative is to install the solar panels on a nearby structure such as a pergola, patio, or shed. If your property has sufficient land area, a ground-mounted solar installation could also be a viable option.


Mobile homes, when powered by solar energy, can offer a sustainable and cost-effective living solution. Understanding the number of solar panels required to power your mobile home can help you make an informed decision.

Considering making the switch to solar energy for your mobile home? If you're in Dublin or surrounding counties such as Meath, Kildare, Drogheda, consider hiring 'Going Solar'. We offer professional solar panel installation services tailored to your specific needs.

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Frequently Asked Questions

How many solar panels do I need to power my mobile home?

The number of solar panels required will depend on your daily power consumption. However, an average mobile home may require around 15 x 300-watt solar panels.

Can I install solar panels on my mobile home roof?

While it's possible, it's usually impractical due to the weight of the solar panels. Alternative options include ground-mounted installations or installing them on a nearby structure.

What other components are required for a solar power system?

Apart from solar panels, you'll need a charge controller, batteries, an inverter, and optionally a backup generator.

What types of batteries are suitable for a solar power system?

Lead-acid batteries are a cost-effective and efficient choice for mobile homes.

How does the weather affect solar power production?

Solar power production is at its peak during the summer. During the winter or in rainy conditions, production can drop significantly.

Where should I get my solar panels installed?

If you're based in Dublin or surrounding counties, consider hiring 'Going Solar' for professional installation services.

Contact Going Solar Now!

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*FYI, parts of this blog post were drafted by artificial technlogy. But rest assured, it's been thoroughly researched, edited, reviewed and me & my team.
Author Fahad Zahid
Founder @ Going Solar

Joe Brennan, the founder of Going Solar, is dedicated to making solar power mainstream in Ireland and meet SEAI objectives. With a focus on affordability and sustainability, he is bringing renewable energy solutions to homes, reducing costs & environmental impact.