Wells of Opportunity (WOO) — Open FOA
Helps research teams and institutions for Wells of Opportunity in energy systems, climate technology, and hardware.
The Wells of Opportunity (WOO) program, administered by the DOE Office of Geothermal (reorganized in 2026 under the Hydrocarbons and Geothermal Energy Office within CMEI), funds the conversion of existing oil and gas well infrastructure into geothermal energy assets. The program operates through two technical approaches: Well Retrofits, which repair inactive or unproductive wells and use earth-hea…
Well Retrofits (inactive/unproductive O&G wells) and Co-Production (active O&G wells generating heat simultaneously).
Sign up free to see the funding breakdown
Sign up free to see the industries in scope
Sign up free to see the full eligibility
Sign up free to see the timeline
Guides for this application
All guides →SAM.gov Registration and UEI Guide for Federal Grant Applicants
Learn how SAM.gov registration, UEI numbers, Grants.gov accounts, organization profiles, workspace roles, and renewal timing fit together.
BudgetIndirect Costs in Grants: Rates, MTDC, and Examples
Understand indirect costs in grants, including direct vs indirect costs, negotiated rates, de minimis rates, MTDC, funder caps, and budget narrative implications.
Write proposalGrant Writing Tips: Mistakes That Kill Deeptech Applications
Grant writing tips for deeptech founders, focused on mistakes reviewers penalize: weak fit, vague innovation, poor evidence, bad budgets, and rushed submissions.
More from DOE Geothermal / OG
All grants from this funder →DE-FOA-0003472 — Next-Gen Geothermal Field Tests (Round 1, Topics 1 & 6)
🇺🇸DOE Geothermal / OG · United States
Runs research teams and institutions for DE Next Gen Geothermal Field Tests in energy systems, climate technology, and hardware.
Critical Minerals and Materials Accelerator
🇺🇸DOE Geothermal / OG · United States
Funds industry-led critical materials processing projects through DOE accelerator grants.
OG-AMMTO Critical Minerals & Materials Accelerator
🇺🇸DOE Geothermal / OG · United States
Offers research teams and institutions for OG AMMTO Critical Minerals & Materials Accelerator in energy systems, materials science, and climate technology.
Similar grants
Browse the directory →
Continuation of Solicitation for the DOE Office of Science Financial Assistance Program
🇺🇸DOE SC · United States
Supports unsolicited basic research proposals across all Office of Science thematic areas in the United States.
Activate Fellowship
🇺🇸Activate · United States
Offers two-year fellowships for first-time hard-tech founders building climate, energy, and biotechnology ventures without equity.
SOSV SF (formerly IndieBio SF)
🇺🇸SOSV · United States
Invests in deep-tech startups and provides a six-month San Francisco residency with hands-on lab development support.
Montana STEP Export Grant
🇺🇸MT Commerce · United States
Funds Montana small businesses exporting deep-tech products internationally through reimbursement of trade shows, compliance testing, IP filings, e-commerce, and market research costs.
R&D Tax Credit — QSB Payroll Offset (Section 41) — TY2025 / Filed
🇺🇸IRS · United States
Supports United States small businesses through payroll tax offsets when they fund qualifying innovation activity.
Texas R&D Franchise Tax Credit
🇺🇸Texas Comptroller · United States
Supports Texas companies through a state tax credit for eligible innovation spending to reduce commercialization costs.