We’re proud to introduce a clean, reliable all-electric auxiliary power unit (APU) that not only saves fuel but delivers unmatched driver comfort previously unavailable in an electric unit. Meet TriPac Envidia, the envy of the trucking world. Thermo King already builds the best selling diesel APU in the industry, and with TriPac Envidia, brings you the longest all-electric runtime in the industry* along with superior battery life. See why TriPac Envidia is the right choice for you! *Based on testing with leading competitive all-electric APU system.