Illustration: Shoshana Gordon/Axios
LuxWall, a Michigan-based developer of insulated windows, closed a $33 million Series A.
Why it matters: Windows are a big source of heat and energy loss, in turn driving emissions. LuxWall says its product works as well as fiberglass insulation.
What's happening: 2150, the European VC focused on urban tech, led the round, which included new investor Khosla Ventures and existing backers Breakthrough Energy Ventures and Prelude Ventures.
- LuxWall has raised $39 million to date.
How it works: LuxWall says its windows are essentially a transparent thermos, using two vacuum-sealed panes to stop heat and energy loss.
- The company says its "Net Zero Glass" can reduce carbon emissions and energy consumption by as much as 45%.
Of note: Bill Gates, who founded Breakthrough Energy, gave LuxWall a shoutout in his December outlook on the year ahead.
What's next: The company, based in Ypsilanti, outside Ann Arbor, plans to expand its first commercial factory.
