Google Inc. wants to expand its Council Bluffs data center spending an additional $1 billion and doubling the size of its staff to 70.

The California company is asking the state for an additional $19.8 million in tax refunds bringing its total tax incentives to more than $36 million. The company received nearly $17 million in tax incentives to build the first phase of its data center in exchange for a promise to employ 35 people.

Google’s total investment in Iowa will come to around $2 billion.

The Iowa Economic Development Authority is to consider the project expansion Friday.

Microsoft is spending about $2 billion to build two data centers in West Des Moines and Facebook has invested about $1 billion in two Altoona data centers.