Blog Post · 8 min read · Updated 2026
Best Grants for Climate Tech in 2026
From $100K to €40M — the 8 grants that fund decarbonization
Climate tech is the rare sector where non-dilutive funding can rival venture capital in size. EU Innovation Fund deploys billions per year. ARPA-E funds breakthrough US energy tech. Frontier Climate has committed $1B+ for carbon removal. Here are 8 grants serious climate tech founders should know — across hardware, software, and deployment.
Who this is for
- Best for
- Climate tech, clean energy, carbon removal, decarbonization
- Stage
- Pilot to commercial deployment
- Funding range
- $100K – €40M per program
- Time to apply
- 40 – 400 hours depending on program
The grants
EU Innovation Fund
The largest climate grant program in Europe. Funds breakthrough demonstration projects in energy-intensive industries, renewable energy, carbon capture, storage, energy storage, and clean hydrogen. Two tracks: Small (up to €2.5M, projects under €7.5M capex) and Large (up to €40M, bigger projects). Highly competitive but transformative funding for serious teams.
EIC Accelerator
Climate tech is one of EIC's strategic challenges. Equity-free grant plus optional EIC Fund investment. Best fit for TRL 5-8 climate solutions ready to scale. Major Green Deal alignment opportunity. ~5-7% acceptance rate.
ARPA-E (US)
The US Department of Energy's breakthrough energy R&D agency. Funds transformative energy tech: batteries, grid, nuclear, fusion, geothermal, carbon capture, energy efficiency. Topic-based solicitations released periodically. Big awards, prestigious, but very competitive and program-specific.
Frontier Climate
Advance Market Commitment — Frontier (backed by Stripe, Alphabet, Meta, Shopify, McKinsey) commits to buying carbon removal from credible startups. Not a traditional grant — it's a guaranteed offtake contract that lets you raise capital against future revenue. Best for direct air capture, mineralization, biomass burial, and other durable removal tech.
Breakthrough Energy Fellows
Bill Gates' climate-focused program for breakthrough energy tech. 2-year fellowship with funding, support, and access to a network of climate-focused investors. Highly selective (~1-2% acceptance) but transformative for selected teams. Annual application cycle.
DOE SBIR Phase I
US Department of Energy SBIR topics cover renewables, batteries, hydrogen, building efficiency, grid technology, climate-resilient infrastructure. Faster review than ARPA-E, smaller awards, less competitive. Path to Phase II ($1.6M) for successful teams.
Innovate UK Net Zero
Multiple Innovate UK competitions specifically themed for climate tech: Net Zero Innovation, Sustainable Innovation Fund, Energy Catalyst, Industrial Decarbonisation. Sector-agnostic Smart Grants also fund climate solutions. UK-registered SMEs only. 8-15% typical acceptance.
Horizon Europe Cluster 5 (Climate)
Multi-year R&D collaborative projects on climate, energy, and mobility. Requires consortium with EU partners but funds significant capex and headcount. More paperwork than EIC but bigger budgets and broader scope. Good for teams with research lab partnerships.
How climate tech grants differ from other sectors
Climate tech grants reward measurable impact more than any other category. Reviewers want quantified emissions reduction or removal in tCO2e per year, with credible methodology. Vague claims (“reduces emissions significantly”) fail; specific numbers backed by lifecycle analysis succeed.
They also reward deployment ambition. Pure R&D wins research grants. Demonstration projects with clear paths to commercial deployment win climate-specific funding. Show how the grant unlocks a real-world deployment, not just lab progress.
The hardware advantage
Most software-first founders find climate grants harder to win than expected. The major programs (EU Innovation Fund, ARPA-E, Breakthrough Energy) explicitly favor hardware solutions with physical infrastructure outcomes. Pure software climate tools (carbon accounting, ESG SaaS, supply chain tracking) have better luck with EIC Accelerator, Innovate UK Smart Grants, and NSF SBIR than with the dedicated climate funds.
Combined funding strategy
A hardware-focused climate tech startup can realistically combine EIC Accelerator (€2.5M) + EU Innovation Fund Small (€2.5M+) + Frontier offtake ($5M+) for total non-dilutive funding of $10M+ over 2-3 years. This rivals a Series A round with zero dilution and provides validation that helps subsequent equity rounds price better.
For software-led climate teams, the realistic combination is EIC + Innovate UK + NSF SBIR for $1-3M over similar timeframes. Still substantial, but the sweet spot for hardware climate is much higher.
Draft your climate tech grant application
AI Drafter generates a tailored EIC, EU Innovation Fund, or ARPA-E first draft for $35. Quantified impact, credible methodology, clear deployment plan — the framework climate reviewers expect.