Germany-based, Xolo develops 3D printers & materials. Specifically, Xolo focuses on a technique called "volumetric 3D printing" aka "computed axial lithography" (CAL), which it dubs "xolography". <Quick primer: the most popular 3D printing technology is fused deposition modeling (FDM) or fused filament fabrication (FFF), followed by selective laser sintering (SLS) & stereolithography (SLA); the major drawbacks of these “layer-by-layer” approaches is that they result in parts having relatively rough surface finishes & lacking strength. Xolography (as opposed to a layer-by-layer approach) works by repeatedly projecting a light pattern into a vat of transparent photopolymer liquid (photoiniators) from various angles (to harden the resin); the advantage here is significantly faster build speed (due to “the increased...

Founded by Karol Kaniuk in 2011 & joined by (his brother) Lech Kaniuk (CEO) in 2018, Sweden & Poland-based SunRoof builds “whole roof surface” solar panels/ tiles (not unlike Tesla’s famed "Solar Roof"). SunRoof claims its “solar tiles” are cheaper, as they use fewer materials/ resources (vs. traditional PV panels), with an aesthetic design that pleases customers. The SunRoof system also comes with energy storage & a digital platform where SunRoof customers can track every stage of their roof’s construction (from design to build to delivery) & once operational, a complete oversight of their energy production & consumption via an app. The new funding extension (fresh off the heel of a first closing in 2022)...