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.