That&#x27;s over the life time of the panels, which for most installation is quoted at 25 years.<p>The 0.06$ figure only works if you actually keep them for the 25 years, most people do not live in a single home for 25 years these days.<p>The figured also does not include potential maintenance that needs to be conducted on the system, as well as part replacements for most installations I&#x27;ve seen only the panels were insured for 25 years and again only against an internal catastrophic failure, which usually only kicks in after 50% drop in efficiency.<p>Other parts like the inverter, wiring, mounting frame, regulator bank, power storage might very well fail within those 25 years, and most importantly 25 years is more than the life time of most composite roof tiles these days, depending on the environment you live and your roofing in you might need to do roof maintenance every 5-10 years and usually replace the roof every 20-30 years.<p>And this is without taking into effect environmental affects on the system like salts in the air if you live on the coast line, hail and frost damage, and the potential very likely obsolescence of the panels them selves.<p>I&#x27;m a huge supporter of solar, but I&#x27;m not a supporter of residential solar, not at this time for sure, if the panels become very cheap to make to the point of becoming carbon neutral and breaking even say within a year (heck i would even take 2-3) sure, but even then it&#x27;s still most likely be much more efficient and so environmentally sound to have them in a central location where hybrid PV and Thermal solar panels can maximize the amount of energy gained per surface area while providing a system which is easier to maintain and upgrade.