Because solar panels come in a wide variety of sizes and outputs, it’s a common practice to describe their costs as dollar per watt. A $100 panel that’s rated at 100 watts would have a $1/Watt rating. This price-per-watt has consistently fallen over the past few years and is currently around $0.40-$0.60. That means that for a 1000 watt setup, you can expect to pay somewhere in the ballpark of $500 dollars in just solar panels, and is typically the largest single expense in an off-grid solar project.
This is where a reputable second hand solar panel refurbisher like SanTan Solar is helpful. SanTan refurbishes panels that are either aging or with cosmetic defects, tests them, then resells them at a fraction of the cost. https://store.santansolar.com/product-category/solar-panels/
It’s not uncommon to see $0.20 per watt panels on our website.