Software & Reports

Explore our Database of GTI Energy & GRI Technical Reports and Software

GTI Energy maintains one of the world's largest collections of information on natural gas technologies and related energy topics. The extensive GTI Energy information resource library includes technical reports, journals, and software products. Count on us to put you in touch with data on a wide range of energy markets, as well as background information about past and current GTI Energy research projects.

Know what you’re looking for? You can search the GTI Energy information database for all documents and software produced by GTI Energy since 1991. You can search by keyword or topic. Or, If you know the GTI Energy Document Number that corresponds to the resource you’re searching for, enter the Document Number into the search field. The format should be GRI-two digit year/four digit document number (e.g., GRI-01/0222) or GTI-two digit year/four digit document number (e.g., GTI-00/0102.)

Search our eStore to find reports and software.

InterEnergy Software

Software for the energy industry.

Unconventional Gas Resources Reports

Reports are free and can be downloaded

Residential Furnace Minimum Efficiencies Reports

Reports are free and can be downloaded.

Zero Net Energy Building Analysis

Reports are free and can be downloaded.


Calculates values associated with purging or clearing of natural gas pipelines.

Operations Technology Development (OTD) Reports

Purchase OTD technical reports.

Legacy Document Delivery Services

Pre-1990 GRI reports and conference papers from Institute-sponsored conferences are available. We can send you a PDF upon request, and there is no charge for pre-1990 GRI reports or conference papers.

Contact the GTI Energy Librarian at to make a request for pre-1990 documents you would like to receive. Typical information to assist the GTI Energy Librarian in fulfilling your request is listed below. Such information is not mandatory, but it helps to facilitate the search.

For Reports:

  • Document number
  • Author(s)
  • Title
  • Topic
  • Date
  • Company that prepared the report (i.e. Gas Research Institute)
  • Any other information that would help identify the report

For conference papers, newsletter articles, etc.:

  • Title of conference
  • Author(s)
  • Title
  • Topic
  • Date
  • Pages the paper appears on, such as 258-279
  • Any other information that would help identify the conference papers, newsletter articles, etc.

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