The database is updated regularly, and each version is assigned a number. The current version of the database includes actual spending for ARRA investments, actual spending for FY2009, FY2010, and FY2011, and budgetary targets for FY2012.
The current version of the database is ‘v03052013′. It is different from the previous version in that it captures loan guarantee-supported projects by the fiscal year (or ARRA) in which the subsidy costs of the investment was appropriated. The previous version counted loan guarantees by date of agreement. This version is only slightly different from the previous version because of these changes.
Previous versions are listed below in order of their usage:
- ‘v10012010’ First full version of the Tracker database.
- ‘v11112010′ Differed from first version in that it removed the ‘Scale Up’ innovation phase category, and removed or re-categorized entries within the category.
- ‘v11162010′ Differed from second version in that it removed a few more items as part of the ‘Scale-up’ re-categorization, and changed the categories of a few more. Approximately 8 lines were affected.
- ‘v11302010′ Differed from third database by updating the DOE ARRA funds (except Buildings, where detailed grant info was already included). This version also added the EPA and NASA data, and fixed a number of typos in the Technology fields.
- ‘v04292012′ Differed from the previous version in that it updated actualized spending values for FY2010 and FY2011, and also includes budget estimates for FY2012. This version also included significantly more data on the Department of Defense energy spending. Previous version ‘v11302010′ referenced only defense-wide spending, while this new version incorporates Army, Navy, and Air Force research and development spending, along with initiatives supported defense-wide.
- ‘v08272012’ Differed from previous version in that it beta-tested a new Innovation Phase category – ‘Procurement.’
- ‘v01232013′ Differed from the previous version in that it captures investments in technology development (basic science, R&D, demonstration, siting/ permitting, and training/ education) and technology deployment (deployment incentives and procurement spending). This version is an expanded version of the Tracker and aims to clarify TOTAL federal public investment in energy innovation. This version also categorizes investment into Investment Type categories to characterize investments as direct spending, tax expenditures, and loan programs.