CriticalMass

MassCEC / Tech to Market / Funding / CriticalMass

The Challenge

Growth-stage climatetech startups face distinct challenges, including significant capital needs, regulatory complexity, and customer adoption barriers, as they scale from pilot projects to commercial deployments. Sustained support is critical—without it, startups struggle to penetrate markets and build the financial momentum required for lasting success.

About CriticalMass

CriticalMass, MassCEC’s latest growth-stage Tech-to-Market program provides up to $1,000,000 in grant funding, specialized services, and partner matchmaking to startup applicants with strong track records of early-stage commercialization and successful demonstration projects. Successful applicants will propose commercial deployment projects that address important decarbonization challenges within MassCEC's four focus areas, help to grow the state’s clean energy economy, and contribute to Massachusetts’ continued clean energy leadership.

Who's Eligible

Startup companies interested in deploying their TRL 8+ climatetech Innovations in Massachusetts are invited to apply to CriticalMass.

Open
Award Potential

$1,000,000

Application Deadline

September 22, 2025

Questions? Contact

Funding Schedule

Annual Solicitations - One Application Period per Year. Subject to change.

Process Step Timing
Informational Webinar July 23, 2025
Questions Submission Deadline July 30, 2025
Concept Paper Deadline August 20, 2025
Application Deadline September 22, 2025
Notification of Finalist Status Late October 2025
Final Award Decisions December 2025
Contracting Concludes; Projects Begin February 2026

Apply

Application Process

Please review the Official Request for Proposals prior to submitting an application. Concept Papers are submitted to Project Partners who are referenced in the Request for Proposals Appendix. Project Partners review Concept Papers and invite applicants to submit full applications.

CriticalMass Webinar

MassCEC hosted a webinar on July 23, 2025 12:00PM-1:30PM EST to review this CriticalMass RFP.

Frequently Asked Questions

1. How do I know if my technology qualifies as climatetech under this program?

  • “…advanced and applied technologies that significantly reduce or eliminate the use of energy from non-renewable sources including, but not limited to: (i) energy efficiency; (ii) demand response; (iii) energy conservation; or (iv) technologies powered, in whole or in part, by the sun, wind, water, geothermal energy, including networked geothermal and deep geothermal energy, hydrogen produced by non-fossil fuel sources and methods, alcohol, fuel cells, fusion energy, nuclear fission or any other renewable, nondepletable or recyclable fuel…”
  • …advanced and applied research in new clean energy technologies including: (i) solar photovoltaic; (ii) solar thermal; (iii) wind power; (iv) geothermal energy, including networked geothermal and deep geothermal energy; (v) wave and tidal energy; (vi) advanced hydropower; (vii) energy transmission and distribution; (viii) energy storage; (ix) renewable biofuels, including ethanol, biodiesel and advanced biofuels; (x) renewable, biodegradable chemicals; (xi) advanced thermal-to-energy conversion; (xii) fusion energy; (xiii) hydrogen produced by non-fossil fuel sources and methods; (xiv) carbon capture and sequestration; (xv) energy monitoring; (xvi) green building materials; (xvii) energy efficiency; (xviii) energy-efficient lighting; (xix) gasification and conversion of gas to liquid fuels; (xx) industrial energy efficiency; (xxi) demand-side management; and (xxii) fuel cells; and (xxiv) nuclear fission; provided, however, that ''clean energy research'' shall not include advanced and applied research in coal, oil, natural gas…
  • …and any other advanced and applied technologies that contribute to the decarbonization of the economy, reduce and mitigate greenhouse gas emissions or mitigate the impact of climate change through adaptation, resiliency, and environmental sustainability”
  • (See M.G.L. c. 23J § 1 as amended pursuant Chapter 179 of the Acts of 2022 “An Act Driving Clean Energy and Offshore Wind” and as further amendment pursuant “An Act Relative to Strengthening Massachusetts’ Economic Leadership” and “An Act Promoting a Clean Energy Grid, Advancing Equity and Protecting Ratepayers”)
  • Please note that technologies related to coal, oil, woody biomass, natural gas (except where used in fuel cells) will not be considered Climatetech for purposes of this RFP.
FAQs continues...

2. May entities submit more than one Application?

Applicants may submit up to two different projects per round, with different project partners.

3. What is a “Total Addressable Carbon” analysis?

The TAC is an estimate of the potential reduction in greenhouse gas emissions or the avoidance of future GHG emissions achievable given widespread use of the technology/innovation.

While addressing the greenhouse gas mitigation potential, it is recommended that applicants reference MassCEC’s Total Addressable Carbon (TAC) analysis or other credible public data sources such as the United States Department of Energy’s Energy Information Administration, the U.S. Environmental Protection Agency’s National Emissions Inventory (especially for greenhouse gases other than carbon dioxide), the EPA's Greenhouse Gases Equivalencies Calculator, and others. You may also use MassCEC’s Emissions Reduction Analysis instructions and the corresponding template as tools, in order to quantify the GHG emissions that can be reduced, avoided, or remediated. Other quantification methods include but are not limited to potential megawatt-hours of clean energy generated, tons of carbon dioxide emissions avoided or captured, energy savings compared to existing or alternative technology(ies), efficiency improvement over existing technology(ies). Applicants are encouraged to quantify and/or describe of the potential to mitigate impacts of climate change through adaptation and resiliency (A&R), and consider environmental sustainability (for example, using indicators across social, economic, and environmental impacts). MassCEC acknowledges that quantifying A&R is an emerging field, and we recommend utilizing the 2023 ResilientMass Plan, as well as the World Economic Forum and FEMA’s BCA Toolkit etc. for toolkits and guidance."

4. What is a Public Benefit Site (PBS) and what are the PBS requirements?

Public Benefit Site (“Public Benefit Site”): a Public Benefit Site is defined as a deployment project that is physically located in a MA-based Gateway City or Environmental Justice community , or is in an underserved geographic region (i.e., such as Western Massachusetts, the Berkshires, or Cape Cod).

5. Are visuals allowed in the application?

Yes, visuals are allowed in the application. Please note that if you add images, the page limit requirement still needs to be met.

6. Are hardware and software technologies evaluated differently?

No, hardware and software technologies are evaluated using the same criteria and InnovateMass funds both types of technologies. In the application, please make it clear the challenges you face in developing and commercializing either type of technology.

7. Is the funding amount and employee count guideline a strict eligibility requirement?

No, this is a suggested guideline for best fit for the program, but companies are welcome to apply if they do not fit into the suggested guidelines.

8. What is a Concept Paper?

A Concept Paper is a one-page memo sent from the startup company applicant to a prospective Project Partner (a list of curated Project Partners can be found in Appendix A of the CriticalMass RFP). The paper should include an explanation of the type of deployment the startup company applicant envisions with the Project Partner, and the proposed or expected role and responsibilities of the Project Partner. Startup company applicants should additionally consider including a 3-5 slide deck to introduce the company. Startup company applicants should review the Project Partner problem statements in Appendix A of the CriticalMass RFP to see if the areas of interest align with their company’s capabilities. If you are interested in pursuing a partnership, develop a short (up to 1 page) concept paper.

Startup company applicants should submit their concept paper and optional deck to BOTH criticallmass@masscec.com and the relevant Project Parter contact listed in Appendix A of the CriticalMass RFP. Please submit concept papers as early as you are able, to allow for ample time to co-develop a project ahead of the application deadline. Be sure to review the Concept Paper Deadline on the CriticalMass webpage.

9. What is a Project Partner?

Project Partners will consist of corporates, universities, and/or municipalities, utilities, non-profits, or other entities that can provide a deployment site. These entities will be integral partners in the awarded startup-led projects and will provide deployment sites, and other resources that may include additional funding. A list of curated Project Partners can be found in Appendix A. Alternatively, Applicants can apply to the program with Project Partner entities that are not included in Appendix A.

10. What is Cost Share?

Cost Share is a percentage of the total grant amount that CriticalMass awardees must contribute to their CriticalMass project. For CriticalMass awardees must contribute 25% of the total grant amount to their CriticalMass projects. For more information, please review Section VI of the RFP.

MassCEC / Tech to Market / Funding / CriticalMass

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