ARPA-E  OPEN 2018 https://arpa-e.energy.gov/?q=open-program/open-2018
Grants.gov  https://www.grants.gov/web/grants/view-opportunity.html?oppId=299398
DE-FOA-0001858
Required concept papers are due Feb. 12, 2018.

Approximately every three years, ARPA-E issues OPEN Funding Opportunity Announcements (FOAs) as a means to address the full range of energy-related technologies and fund those potentially disruptive technology concepts not currently supported through an ARPA-E focused FOA. ARPA-E supports transformational energy research that can be meaningfully advanced with a small investment over a defined period of time.

A broad variety of projects will be welcomed, and examples include electricity generation by both renewable and non-renewable means; electricity transmission, storage, and distribution; energy efficiency for buildings, manufacturing and commerce, and personal use; and all aspects of transportation, including the production and distribution of both renewable and non-renewable fuels, electrification, and transportation energy efficiency. For examples of past OPEN projects:    https://arpa-e.energy.gov/?q=site-page/open