Top 10 Energy Startup Accelerators in 2025
The global energy transition is accelerating in 2025. From renewable power and energy storage to carbon capture and grid optimization, startups are driving solutions for a more sustainable, resilient, and decentralized energy future.
Yet scaling energy ventures presents unique challenges: capital intensity, regulatory complexity, and long commercialization timelines. That's where energy startup accelerators step in — offering specialized support, funding, pilot partnerships, and access to deep industry networks.
In this guide, we highlight the top energy startup accelerators in 2025 empowering founders to reshape the future of energy.
Quick list of top energy startup accelerators in 2025
- Greentown Labs – Largest climatetech and energy startup incubator in North America
- Elemental Excelerator – Impact-focused accelerator supporting climate and energy innovation
- Free Electrons – Global utility-backed accelerator for energy startups scaling internationally
- Plug and Play Energy – Silicon Valley-based accelerator connecting startups with global corporates
- The Clean Fight – New York-based accelerator driving clean energy adoption in buildings and grid
- Third Derivative – Climate tech accelerator connecting startups to a global investor network
- InnoEnergy (EIT InnoEnergy) – European accelerator supporting sustainable energy ventures
- EnergyLab Australia – APAC-focused accelerator advancing clean energy entrepreneurship
- Shell GameChanger – Corporate accelerator funding disruptive energy innovations
- Schneider Electric Innovation Program – Accelerator for startups in energy management and automation
How to find the right energy startup accelerator
Choosing an energy startup accelerator requires sector fit and long-term alignment. Key considerations:
- Technology focus: Renewable energy, energy storage, grid management, carbon capture, or EVs.
- Stage alignment: From early concept validation to pilot projects and commercial deployment.
- Corporate partnerships: Many programs connect startups with utilities, governments, and corporates.
- Funding structure: Non-dilutive grants, convertible notes, or direct investments.
- Geographic relevance: Regional policies, pilot sites, and deployment partners.
Explore Papermark's Investor Database to find energy startup accelerators by sector, stage, and location.
How to send your pitch deck to energy startup accelerators
To make a strong impression, your pitch deck must be trackable and data-rich.
- Don't send attachments: Avoid static PDFs.
- Use tracked links: Share your pitch deck securely via Papermark.
- Customize the message: Highlight your technology's impact on emissions or grid resilience.
- Emphasize pilots: Showcase real-world deployments, LOIs, or utility partnerships.
- Back it with data: Cost reductions, scalability metrics, and policy fit.
- Follow up smartly: Use engagement analytics to drive conversations.
Why use a pitch deck link instead of attachments?
- Get notified when accelerator teams open your deck
- Track how long they were on each page
- Capture emails of those who viewed your deck
- Protect your IP using watermark, screenshot protection and other link permissions
- Securely send data room with additional documents
Table
| Accelerator | Location | Investment Size | Program Length | Focus Areas | Success Rate |
|---|---|---|---|---|---|
| Greentown Labs | Boston / Houston | $25K | 6-12 months | Climatetech, Energy, Hardware | 89% |
| Elemental Excelerator | Hawaii / California | $500K | 9 months | Energy, Mobility, Water, Agriculture | N/A |
| Free Electrons | Global | $200K | 6 months | Utilities, Smart Grid, Renewables | N/A |
| Plug and Play Energy | Silicon Valley / Global | $100K | 3 months | Energy, Smart Cities, Mobility | 88% |
| The Clean Fight | New York | $100K (non-equity) | 6 months | Clean Energy, Buildings, Grid | 87% |
| Third Derivative | Global | $100K | 18 months | Climate Tech, Carbon Capture | 91% |
| EIT InnoEnergy | Europe | $550K | 12-24 months | Sustainable Energy, Storage, EVs | 93% |
| EnergyLab Australia | Sydney | $80K | 6 months | Clean Energy, Grid, Storage | 85% |
| Shell GameChanger | Global | $250K | Custom | Early-stage disruptive energy | 90% |
| Schneider Electric Innovation Program | Global | $100K | 3 months | Energy Efficiency, Automation | 88% |
1. Greentown Labs
Largest climatetech and energy incubator in North America.
- Focus: Climatetech, Energy, Hardware
- Location: Boston / Houston
- Program length: 6–12 months
- Investment: Up to $25K (grant)
- Equity free: Yes
- Website: Greentown Labs
2. Elemental Excelerator
Impact-focused investor accelerating scalable climate and energy innovation.
- Focus: Energy, Mobility, Water, Agriculture
- Location: Hawaii / California
- Program length: 9 months
- Investment: $500K (convertible note)
- Equity free: No
- Website: Elemental Impact
3. Free Electrons
Global utility-backed accelerator connecting energy startups to international pilots.
- Focus: Utilities, Smart Grid, Renewables
- Location: Global
- Program length: 6 months
- Investment: Up to $200K (pilots)
- Equity free: Yes
- Website: Free Electrons
4. Plug and Play Energy
Innovation platform connecting energy start-ups with corporates and investors.
- Focus: Energy, Smart Cities, Mobility
- Location: Silicon Valley / Global
- Program length: 3 months
- Investment: $100K
- Equity free: No
- Website: Plug and Play Energy
5. The Clean Fight
New York accelerator scaling growth-stage clean-energy solutions.
- Focus: Clean Energy, Buildings, Grid
- Location: New York
- Program length: 6 months
- Investment: $100K (non-equity grant)
- Equity free: Yes
- Website: The Clean Fight
6. Third Derivative
Global climate tech accelerator backed by RMI and New Energy Nexus.
- Focus: Climate Tech, Carbon Capture
- Location: Global
- Program length: 18 months
- Investment: $100K (convertible note)
- Equity free: No
- Website: Third Derivative
7. EIT InnoEnergy
Europe's leading sustainable energy accelerator under EU's EIT network.
- Focus: Sustainable Energy, Storage, EVs
- Location: Europe
- Program length: 12–24 months
- Investment: Up to $550K
- Equity free: No
- Website: EIT InnoEnergy
8. EnergyLab Australia
APAC accelerator advancing clean-energy entrepreneurship.
- Focus: Clean Energy, Grid, Storage
- Location: Sydney
- Program length: 6 months
- Investment: $80K
- Equity free: No
- Website: EnergyLab
9. Shell GameChanger
Corporate program funding disruptive early-stage energy innovations.
- Focus: Early-stage Disruptive Energy
- Location: Global
- Program length: Custom
- Investment: Up to $250K (non-dilutive)
- Equity free: Yes
- Website: Shell GameChanger
10. Schneider Electric Innovation Program
Schneider-backed accelerator for energy-management and automation start-ups.
- Focus: Energy Efficiency, Automation
- Location: Global
- Program length: 3 months
- Investment: $100K (SAFE)
- Equity free: No
- Website: Schneider Electric Innovation
Prepare for Demo Day: what energy accelerators expect
Demo Day for biotech founders means showing investors more than just an idea. Here's how to stand out:
- Showcase pilot project results with utilities or corporates
- Present strong unit economics and scalability potential
- Highlight regulatory readiness and certifications
- Demonstrate CO₂ reduction and environmental impact
- Use Papermark to track investor interest and deck engagement
Didn't find the right accelerator?
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Final Thoughts
The energy sector is transforming faster than ever — and startups sit at the center of this revolution. With the right accelerator, founders can tap into industry leaders, access capital, and scale game-changing technologies faster. Combine this advantage with Papermark's secure pitch sharing and take your energy venture global.