Russian President Vladimir Putin and his Turkish counterpart Recep Tayyip Erdogan are expected to participate in the ceremony.
At a press conference in Ankara, Putin announced that Russian Federation would push forward its delivery dates for the S-400 defense systems, which have been due after a contract was signed between the two countries in December, despite objections from Turkey's North Atlantic Treaty Organisation allies.
In a sign that ties are warming, Putin is one of the first global leaders to call Erdogan and offer support after a failed coup against the Turkish president in July 2016.
Key Syrian regime backers Russian Federation and Iran have joined forces with rebel-supporting Turkey to push forward a peace process but also to ensure influence in Syria once the conflict ends.
On November 24, 2015 a Turkish military jet blasts a Russian warplane out of the sky over the Turkey-Syria border.
"When all four units go online, the plant will meet 10 percent of Turkey's energy needs", Erdogan said, adding that despite delays Turkey still planned to start generating power at the first unit in 2023.
The project was launched with Erdogan declaiming "in the name of God!" and work immediately began on the site, with the first concrete pouring as celebratory fireworks were set off.
That year will mark the 100th anniversary of the founding of modern Turkey, when Erdogan says the country will be among the world's top 10 economies.
'This scale of the project is hard to exaggerate, ' Putin said at the ceremony.
Half of the offshore section of the pipeline has already been installed.
The deal has been valued at about $2bn according to reports. Putin said it was chose to expedite the deliveries of S-400 missile defense systems to Turkey.
But Putin refused to discuss the issue saying "these are exclusively commercial questions" rather than political ones.