Rust Belt Industrials
Equipment Manufacturing / Tandem Solar Cells

CubicPV

Bedford, MAStartupcubicpv.com
Total Funding
Undisclosed (+ $6M DOE grant)
Founded
2020
Employees
51-100
Headquarters
28 Crosby Drive, Unit 2500, Bedford, MA 01730

CubicPV is a Bedford, Massachusetts-based solar technology company focused on developing and commercializing next-generation tandem solar modules that combine silicon and perovskite semiconductor materials. The company's core innovation stacks two photovoltaic cells made from different materials - perovskite on top of crystalline silicon - to capture a broader spectrum of sunlight and achieve over 30% greater efficiency than conventional single-junction silicon modules. CubicPV also manufactures monocrystalline wafers (both P-Type and N-Type, M10 and G12 formats) as a foundational product line, leveraging its deep silicon expertise as it advances toward full tandem commercialization. In 2025, a collaboration with NREL yielded a certified 24% world-record efficiency for a single-junction perovskite minimodule, underscoring the company's technical leadership.

What sets CubicPV apart is its "durability-first" philosophy - the company focuses not just on peak lab efficiency but on ensuring long-term field stability that meets real-world deployment requirements. This is a critical differentiator since perovskite's susceptibility to degradation has historically been the chief barrier to commercialization. CubicPV has built a robust intellectual property portfolio, collaborates extensively with national laboratories (including NREL), MIT, and industrial partners, and has received a $6M DOE grant under the Advancing U.S. Thin-Film Solar Photovoltaics funding program for its 4-terminal, durable perovskite tandem work.

CubicPV is strategically significant to the U.S. energy supply chain because it represents one of the most credible domestic paths to breaking China's near-monopoly on conventional silicon solar manufacturing. By pioneering a tandem architecture that standard silicon producers cannot easily replicate, CubicPV is positioning the U.S. to lead in the next generation of solar technology. Higher-efficiency tandem modules reduce the land, balance-of-system, and installation costs per watt, which can materially lower the levelized cost of energy (LCOE) for utility-scale solar projects. Backed by top-tier deep-tech investors including Bill Gates' Breakthrough Energy Ventures and Hunt Energy Enterprises, and recognized on TIME's Top GreenTech Companies list for two consecutive years (2025 and 2026), the company is emerging as a key player in domestic clean energy manufacturing.

Funding

2 known venture funding rounds (Venture - Series Unknown), led by SCG Cleanergy. Key investors include Breakthrough Energy Ventures (Bill Gates), Hunt Energy Enterprises, SCG Cleanergy, and North Bridge Partners. Also received a $6M DOE grant under the Advancing U.S. Thin-Film Solar Photovoltaics program. Total private funding amount not publicly disclosed.

Investors

  • Breakthrough Energy Ventures (Bill Gates)
  • Hunt Energy Enterprises
  • SCG Cleanergy
  • North Bridge Partners

Key People

  • Tim McCaffery, CEO & Board Chair
  • Michael Irwin, Founder
  • Scott Burton, SVP of Global Operations (former CEO of Hunt Perovskite Technologies)
  • Kris McBride, CFO
  • Libby Wayman, Board Director (Breakthrough Energy Ventures)
  • Victor Liu, Board Director (President, Hunt Energy Enterprises)
  • Bill Burgess, Board Director (North Bridge Partners)
  • Bruce Sohn, Board Director (Former President, First Solar)
  • Bob Metcalfe, Advisor

News