Factory-direct Qcells panels through US Power — homeowners pay wholesale, not retail.

How to Determine Solar System Size for Your Home

Most solar quotes are built on rough averages, not your actual home. This guide breaks down the exact formula homeowners can use to determine solar system size correctly, including a worked example, panel count conversion, and the real-world factors that shift the final number.

Residential Solar Panel Systems: What’s Really Inside Yours?

A photorealistic wide-angle view of a clean, fully complete array of black-on-black residential solar panel systems installed seamlessly on the terracotta tile roof of a Southern California suburban home. A professional installer in a work shirt and hard hat kneels on the roof beside the perfectly aligned panels during a warm, golden hour sunset with distant mountains in the background.

Most solar quotes focus on savings and skip the hardware. This guide breaks down what residential solar panel systems actually include, how the components work together, and which system type fits your home, so you can evaluate any quote with confidence before you sign.