An ambitious project is under way in Wales to build one of the most advanced and secure data centers in Europe.

Next Generation Data (NGD) is investing £200 million (US$346 million) to modify a 750,000 square-foot (69,677 square meters) factory built by LG more than a decade ago near Newport, Wales, intended for fabricating microchips but abandoned after the Asian financial crisis.

The Welsh government has tried for years to find other uses for the hulking structure whose second floor alone can hold two 747 jumbo jets. Now, it's in the midst of a massive retrofit to house thousands of server racks that NGD officials say could appeal to companies such as IBM and Microsoft, which are growing their data center services.

Although it was built for microchips, NGD officials say the facility is well suited for a data center, ranging from its close proximity to local carrier exchanges, a nearby power substation and to the London area, said Simon Taylor, the company's chairman.

The data center is being designed to be "carrier neutral" and will have fiber Internet connections provided by carriers BT, NTL and Cable and Wireless. NGD is also in negotiations to get a trans-Atlantic connection that would bypass London, which would ensure connectivity in the event of a terrorist attack or natural disaster such as flooding in the city.

"We actually think that having non-London transit will be a very saleable product for us," Taylor said.

NGD's facility will draw power from a local substation that connects directly to Britain's national grid, also called the "supergrid." The substation can deliver up to 180 megavolt amperes (MVA) in 45 MVA blocks. The amount of power is massive: 180 MVA is enough for a city, Taylor said.

It's tough to get that much power at data center sites within the city limits of London. "Power is a very, very scarce commodity," Taylor said.

The former LG facility had several traits that lend themselves well to becoming a data center. It has double-skin walls and was designed to be shudder-proof in order to make microchips.

NGD is also fortifying the facility to make it highly secure. A 12-foot (3.66-meters), military-grade fence extending into the ground will ring the facility with an infrared system beyond that to detect intruders. It will have thousands of closed-circuit television cameras, air-lock gates, retina-scan biometric entry systems and bulletproof and bomb-proof reinforcements in places.

"We've really gone to town on this," Taylor said.

The walls will resist fire for up to two hours. In the event of a power failure, 18,000 liters of diesel fuel is stored on site, which would keep the center running for some 36 hours before more fuel would be needed. It has been classified as a Tier 3 facility by the Uptime Institute, which rates data centers on infrastructure reliability and performance.