Solar Panels Cost Now Only 12 Cents/Watt

[marcus]

From https://finance.yahoo.com/energy/articles/chinese-solar-panels-drop-12-230000963.html
Title : Chinese Solar Panels Drop to 12 Cents a Watt, Rooftop Installs Surge Worldwide
By Alex Kimani , Sept 2026

Chinese-made photovoltaic panels cost 12 cents a watt in 2026, down from $5-$6 in 2000 ...

A Pakistani cement giant has cut its power costs by up to 40% with solar at its production sites ...

Last year, India added a record-breaking 44 GW (gigawatts) of solar power, taking its installed solar capacity to 154 GW with projections that solar will meet half of the country's electricity demand growth through 2030 ...

rooftop solar capacity in the Philippines almost doubled over the 12 months to April, with residential solar panels now able to pay for themselves in just over 3 years ...

Africa is on track to install a record 17 GW of solar capacity in 2026, good for a robust 45% Y/Y increase, with about 75% of this growth driven by distributed, small-scale systems on commercial and industrial rooftops ...

Australia, which currently leads the world in rooftop solar adoption, thanks to an overabundance of sunshine, high electricity costs and strong government incentives. Over 4.3 million homes and small businesses in the country (~43% of total) have solar panels ...

Meanwhile, plug-and-play solar (aka balcony solar or plug-in solar), has become a big thing in Europe. These panels allow users to generate electricity by mounting a small panel and plugging a microinverter directly into a standard household wall socket. UK officially legalized plug-in solar systems in August this year, permitting a maximum AC output of 800W connecting directly to standard wall sockets.

 

[pantaiema]

Pointing to $0.12/watt solar PV panels down from around $5-6/w without detailing the breakdown may overlook the true Total Cost of Ownership (TCO). PV panel itself only accounts for around 15% of a typical rooftop PV setup on the existing roof. But the real cost lies in labour, permit (if required), structural roof preparation, mounting hardware, electrical work, and battery integration.

The long-term economic models must also factor in depreciation and replacement costs. Essential components like inverters, battery systems have significantly shorter lifespans, often requiring replacement in under 10 years to keep the system operational over its lifetime.
Factoring these ongoing cost of depreciation and replacement is essential, so at the end of the lifetime of these essential components, you will still have money available to replace them for the whole system to function properly. Not to mention, if you are going off grid you might need to have your own standby generator, as you can not rely on the weather to supply your electricity need.

If solar PV is really ready to be a primary power source, why aren't data centres using it? The people running data centres understand energy economics better than almost anyone, and they are currently facing massive power shortages. Since these facilities are usually built outside cities where land is cheap, space isn't the problem. If solar were truly viable and cheaper for continuous operations, they would have made the switch already. The fact that they don't rely on solar for their core energy needs is one of the strongest arguments against it as a primary power solution.

 

[centurion]

If solar PV is really ready to be a primary power source, why aren't data centres using it?

space and required power (10-100 MW). Solar panels cannot generate so much continuously.