Global search giant Google's US$120 million (S$150million) data centre in Singapore is up and running.

Operations at the Jurong West centre - Google's first urban, multi-storey data centre - started last month, it said in a recent blog.

Along with its Taiwan data centre, which also opened last month, the facility here will serve Asian customers, offering faster and more reliable access to all of Google's services, including e-mail and productivity tools.

Google vice-president for data centres Joe Kava said in a blog post last month that demand for the data centre is being driven by mobile Internet users.

Between July and September last year, "more than 60 million people in Asia landed on the mobile Internet for the first time", he said. "That's almost two Canadas, or three Australias."

Growth in Asia is not likely to slow for some time, as the majority of people who have yet to come online are in Asia, he added.

The 2.5ha facility here is environmentally friendly and efficient, using a cooling system relying on recycled water.

It is near a local primary school and Housing Board flats.

The facility also boasts a robot theme in its design: a 400kg decorative robot designed by a Thai artist from scrap metal at the entrance to the office space on the third floor of the facility.

The data centre in Changhua county, Taiwan, is larger and is built on a 15ha site.

In his blog, Mr Kava said the company intends to invest about US$600 million in the facility there.