The world's largest solar photovoltaic power plant at a single location, India's Tamil Nadu project had yet another official unveiling and is now fully on-line and operational.

Facts and figures on the Tamil Nadu project:

648-megawatt capacity

Covering an area of 2,500 acres

Adani Group was the EPC

SCADA systems, automation systems and substations by ABB

More than 2.5 million solar modules from eight vendors including China's GCL and Italy's MegaCell

27,000 tons of galvanized steel, 576 inverters, 154 transformers and 6,000 kilometers of cables

Robotic waterless panel cleaning by Israel's Ecoppia

Connected with the 400-kilovolt substation of power distribution company Tantransco

The entire 648 megawatts were installed in a startlingly fast eight months, despite monsoons and logistical hurdles. At one point there was a total of 8,500 workers with crews installing 40,000 panels per day in three shifts -- up to 11 megawatts per day.

Tamil Nadu's PV power station won't hold the crown for long. India's ambitious target of installing 100 gigawatts of solar power in the next five to seven years will require a lot more of these gargantuan plants.

The biggest solar projects

Some of the larger PV power plants in development, according to GTM Research, include:

Ukraine's four 1-gigawatt Chernobyl projects, Chinese financed, relatively likely to be built

Turkey's 1-gigawatt tendered project announced, very unlikely to be built

China's 2-gigawatt project under construction in Ningxia

India's three 500-megawatt projects planned in Maharashtra

India's 600-megawatt Odisha project planned by Sonthalia

Morocco's two 400-megawatt "sister" projects to be tendered in 2017

Operational U.S. solar projects include:

Solar Star California: SunPower, 579 megawatts

Topaz Solar: Built by First Solar, the 550-megawatt power plant is owned by MidAmerican Solar

Desert Sunlight: First Solar, 550 megawatts

In Latin America, the largest operational project is El Romero in Chile at 255 megawatts DC, which is "supplying much of its output to Google's Chilean operations," according to GTM Research.

(Check out the GTM Research Utility PV Market Tracker for much more information on utility-scale solar deployment in the U.S.)