Complete Guide To Rooftop Solar Power: Costs, Benefits & Installation
Solar Costs Have Reached Historic Lows: Average residential solar costs have dropped to $3.00-$3.30 per watt in 2025, representing a 60% decrease from 2010 levels.
While solar offers a great return on investment, it is a large ticket purchase that will require you to either have access to large sums of cash, or the ability to secure financing. $30,000 depending on how many panels you require, while a heavy power consumer may spend upwards of $50,000 for a larger installation.
"Tesla's Solar Roof is possibly the sleekest solar solution out there," CNET's AJ Dellinger wrote. The price of more common solar panels can vary due to a variety of factors. CNET estimates it at between $15,000 and $20,000 for a 5-kilowatt system. That's on the low end of MarketWatch's 6-to-8-kilowatt estimate for what the average home needs.
When you install a solar energy system, you're getting more than just solar panels on your roof. Multiple pieces of equipment, such as racking, wiring, and inverters, must be installed so the solar panels can power your home. There are also a number of costs that ensure your system is installed correctly and that the solar company can operate.
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