How Much Does Solar Panel Installation Cost For 800 Sq Ft Roof?

Discover how much solar panel installation costs for an 800 square-foot home. From the number of panels to the power output, a lot goes into calculating the cost of a solar panel installation. We’ll tell you everything you need to know.


  • ACTUAL Square footage
  • Higher monthly energy consumption
  • Fewer sunny days
  • Solar panel type

Last year solar power accounted for 2.8% of the total energy generated in the U.S. But experts say this number will grow significantly in 2022 due to new investments.

Homeowners continue to finance home solar systems as tax credits and falling manufacturing prices help reduce the solar panel installation cost. So, if you’ve been wondering about the cost of solar panel installation, this guide is for you.

We’ll break down the solar panel installation cost for an 800 sq ft roof. You can use this information to calculate how much installation would cost you, no matter the size of your roof.

Solar Panel Installation Cost for an 800 Sq Ft Roof

Solar panel installation cost per sq ft is often between $4 and $10. But it’s not common to measure installation costs by size. So instead, solar companies estimate solar costs by how much energy you need.

That’s because energy needs vary significantly from home to home. Data from the EIA shows how varied energy needs are across different regions. So while the national average for energy consumption is 11,000 kilowatt-hours (kWh) per year, this may not accurately represent your personal needs.

Cost per Watt

Solar companies sell and install solar panel systems by kilowatt, and they price them by the watt. The cost per watt is often between $2.50 and $3.50. Multiply these numbers by 1,000 to calculate the cost per kilowatt.

Further cost factors to consider are:

  • Type and brand of solar panels
  • Size of panels
  • Design of your roof

Most importantly, your energy needs will drive how much a solar panel system costs you. You’ll need to decide if you want to install a 6kW system or a 10kW system.

Also, it will be important to determine what type of solar panels you prefer such as:

  • Monocrystalline Solar Panels
  • Polycrystalline Solar Panels
  • Thin-Film Solar Panels

Additional Costs

The cost per watt only covers the basics. That is your home solar system. It usually doesn’t include the cost of labor, which can range from $30 to $45, depending on your state.

It also doesn’t include mounts, solar inverters, or batteries. Moreover, you’ll need to secure permits and pay inspection fees.

You need to factor in these additional costs to understand the total price of installation.

Cost Savings from Installing Solar Panels on an 800 Sq Ft Root

The most significant savings come from financial returns and lowering your utility bills. The federal government offers tax incentives for going solar. There are also incentives by state for you to capitalize on.

Plus, generating solar power means cutting down your utility bill. This can equal thousands of dollars in savings over the years. If you create enough energy to add to the electric grid, you may even get a check from your utility company.

Popular Benefits of Solar

Solar Energy Lowers Electric Bills

Solar Energy Gets You Hefty Tax Incentives

Solar Energy Can Be Coupled With Solar Battery Storage

Solar Energy is Environmentally-Friendly

Solar Panel Installation Costs Explained

With more information about costs, you have a better idea of the solar panel installation cost for an 800 sq ft roof. Even if your roof is a different size, this guide helps you better understand the costs of going solar.

If you’re ready to invest in a solar power system, calculate your sq ft solar panel installation costs at We are happy to help you estimate how much you’ll pay (and save!) for your solar system.