According to me yes persons having school district password will be able to fill PIW for High Performance Incentive Grant in OPSC website and here I will let you know FAQs related to HPIG.

Here telling you some FAQs
Q: When must the HPI Grant section of the PIW be completed?
A: This section of the PIW must be completed at each reporting period for the project and only when the project has received High Performance Incentive grants.

Q: Who may complete the HPI Grant section of the PIW?
A: Anyone with access to the school district’s password for logging in to the OPSC website will be able to fill out the PIW information for HPI grants.

Passwords are only given to those who have been identified by the school district as valid representatives and are on file in the OPSC database.

To change the district representative, a school district can submit a Form SAB 50-03, filling out Section 1 of the form only, naming the new representative(s).

Q: What will the information be used for?
A: The information gathered on HPI grant funding will be used as a guide for future consideration of how similar programs will be created and funded.

Currently there is a lack of good data on costs associated with high performance building features, so the State Allocation Board wanted to use the HPI grants as a starting point for collecting information on costs associated with constructing high performance buildings and components. This information will not be used as part of a project audit.

For full information please check the file

FAQs of High Performance Incentive Grant