In urban environments, noise and emissions regulations can shut a project down. Our linear opposed-piston design is inherently perfectly balanced, virtually eliminating the vibration and "clatter" of traditional reciprocating engines. Because the CAVIE cycle offers superior combustion control, it significantly reduces NOx and particulates at the source. Packaged in ultra-compact 50kW modules, 200kW clusters, or higher output gensets, these units provide pure sine wave AC output for sensitive electronics or high-voltage DC for fast charging needs, all while offering a path to zero emissions via renewable fuels.