Tonke rips out the loud generator and liquid propane systems and replaces them with a full solar array. The motorhome is aimed at providing full comfort on all types of trips, even extended, off-grid stays in hot weather.

The Fieldsleeper International, which was initially called the "Desert Yacht," becomes the largest member of Tonke's Fieldsleeper line. Tonke's smaller Fieldsleeper campers offer solar systems optionally, but the International is equipped with a standard 400 W roof-mounted solar-panel array, 2.6 kWh, 440 Ah AGM battery bank, 3 kW inverter and 1.4 kW charger. A color control panel displays information about the state of battery charge, solar panels, inverter, etc.