Questions Regarding Funding Opportunity Announcements

Please contact the email address for questions regarding Funding Opportunity Announcements. Upon the issuance of a FOA, only the Contracting Officer may communicate with Applicants. ARPA-E personnel and our support contractors are prohibited from communicating (in writing or otherwise) with Applicants regarding the FOA. This “quiet period” remains in effect until ARPA-E’s public announcement of its project selections.

ARPA-E will not pre-assess an Applicant’s proposal. Prospective Applicants must review the technical requirements of the FOA and independently determine whether their proposed concept warrants a submission.


ARPA-E Archived Funding Opportunities

DE-FOA-0002241: Range Extenders for Electric Aviation with Low Carbon and High Efficiency SBIR/STTR (REEACH SBIR/STTR)

ARPA-E seeks to mitigate the greenhouse gas emissions associated with commercial air travel at minimum economic cost by developing elements of an ultra-high efficient aircraft propulsion system that uses Carbon Neutral Liquid Fuels (CNLFs).[1] Since these fuels generally either have lower specific-energies (kWh/kg) or are projected to have higher cost than traditional fossil-based jet fuels, ultra-high conversion efficiency is critical for the economic viability of this approach. An electrified propulsion system framework postulated by ARPA-E (Fig. 1) could potentially leverage multiple sources of stored energy (e.g. CNLF, batteries, etc.) to facilitate emerging propulsion concepts (e.g. distributed propulsion) and enable net-zero carbon emissions for long range, narrow-body, commercial aircraft.

The objective of the Range Extenders for Electric Aviation with Low Carbon and High Efficiency (REEACH) program is the development of one element of the electrified propulsion system framework: a system for the conversion of chemical energy contained in energy dense CNLFs (green block in Fig. 1) to electric power for aircraft propulsion and hotel loads. (The development of the all-electric powertrain depicted in Fig. 1 is the objective of a separate ARPA-E FOA.[2])

[1] CNLFs are defined in this FOA as energy dense liquid fuels with no net greenhouse gas emissions or net carbon footprint. They are made by converting molecules contained in air (N2, CO2), water, and/or biomass using renewable energy into energy-carrying fuels that are liquid at moderate temperatures and pressures.

[2] Aviation-class Synergistically Cooled Electric-motors with iNtegrated Drives (ASCEND) FOA to be released by ARPA-E.


  • REEACH SBIR/STTR FA FOA - Mod 01 (Last Updated: 3/23/2020 04:20 PM ET)

Previous Versions

  • REEACH SBIR/STTR CP FOA (Last Updated: 12/14/2019 03:40 PM ET)

Required Application Documents

Pursuant to the FOA, Applicants are required to submit the "Required Application Documents" with their Application. Incomplete applications will not be reviewed or considered.

View Template Application Documents

Concept Paper

  • REEACH SBIR/STTR Concept Paper Template (Last Updated: 12/14/2019 03:44 PM ET)

Full Application

  • REEACH SBIR/STTR - Technical Volume Template (Last Updated: 3/23/2020 04:31 PM ET)
  • SF-424 (Last Updated: 3/23/2020 04:34 PM ET)
  • Budget Justification SF-424A Guidance (Last Updated: 3/23/2020 04:35 PM ET)
  • Budget Justification/ SF-424A Workbook (Last Updated: 3/23/2020 04:44 PM ET)
  • Business Assurances Disclosures Form SBIR-STTR (Fillable) (Last Updated: 3/23/2020 04:46 PM ET)
  • Business Assurances & Disclosures Form - Sample (Last Updated: 3/23/2020 04:47 PM ET)
  • Summary For Public Release Template (Last Updated: 3/23/2020 04:47 PM ET)
  • REEACH Summary Slide Template (Last Updated: 3/23/2020 04:48 PM ET)
  • US Manufacturing Plan Template (Last Updated: 3/23/2020 04:49 PM ET)
  • Replies to Reviewer Comments Template (Last Updated: 3/23/2020 04:50 PM ET)
  • SBIR VCOC Certification (Last Updated: 3/23/2020 04:51 PM ET)
  • REEACH SBIR/STTR Metrics Workbook (Last Updated: 3/23/2020 04:51 PM ET)

Contact Information

    Please contact the email address above for questions regarding ARPA-E’s online application portal, ARPA-E eXCHANGE.
    Please contact the email address above for questions regarding Funding Opportunity Announcements. ARPA-E will post responses on a weekly basis to any questions that are received. ARPA-E may re-phrase questions or consolidate similar questions for administrative purposes.

Submission Deadlines

  • Concept Paper Submission Deadline: 1/31/2020 9:30 AM ET
  • Full Application Submission Deadline: 5/22/2020 9:30 AM ET
  • View Full Application Reviewer Comments Period: 7/8/2020 5:00 PM ET – 7/14/2020 5:00 PM ET