German colocation firm Maincubes has launched its second data center in Frankfurt.

In a recent LinkedIn post, the company unveiled its completed FRA02 facility in Schwalbach near Frankfurt.

According to the company website, the facility offers 7.4MW of IT capacity across 4,700 sqm (50,590 sq ft) of IT white space.

The facility has a cooling wall system that uses large heat exchangers with chilled water flowing through them for air conditioning. The data center also uses a rotating UPS system - known as an isolated parallel bus - and a kinetic flywheel energy storage unit in place of a battery.

Plans for the FRA02 facility were first announced in July 2021 and construction began a year later, having experienced delays due to Covid-19.

At the time of planning, the company said that a public sector IT client had already committed to taking up part of the facility upon completion.

Majority-owned by Digital Transformation Capital Partners since September last year, Maincubes currently operates the FRA01 data center in Frankfurt and another in Amsterdam in the Netherlands.

The company has also announced plans for a third and fourth data center in Frankfurt and its first in Berlin.

This comes after Maincubes secured more than €1 billion ($1.07bn) in debt financing to fund its expansion plans in 2023.

The company also signed a 10-year Power Purchase Agreement with energy provider Stadtwerke Gottingen AG for its third Frankfurt facility, FRA03, earlier this year.

In 2015, Keppel DC REIT acquired a then yet-to-be-constructed Maincubes data center in Offenbach, outside of Frankfurt.