The U.S. Environmental Protection Agency on Tuesday told the Business Journal that its Energy Star Portfolio Manager online software for benchmarking building energy-use performance will remain out of service for another week to ensure the major upgrade goes smoothly.

As the Business Journal reported last month, Portfolio Manager  was taken offline June 26 and was set to be down through July 9. On Tuesday, the EPA said it will stay offline until July 17.

"This is the period of time during which we are migrating tens of millions of data points and verifying that they were migrated completely and correctly," the EPA said in a statement.

In addition to back-end upgrades to accommodate much more data, the improvements are supposed to include making the system easier to use and receiving utility-bill information automatically.

A new state law -- commonly known as Assembly Bill 1103 -- requires owners of commercial buildings larger than 50,000 square feet to disclose property energy performance to full-building tenants, lenders and buyers as of Monday.

However, the California Energy Commission on June 13 said it would delay enforcement until Sept. 1 because of the Portfolio Manager temporary shutdown.